InvalidOperationException: Source column 'Label' is required but not found. #117

Closed
Closed
InvalidOperationException: Source column 'Label' is required but not found.#117
Assignees
zeahmed
Labels
bugSomething isn't working

Description

@zeahmed
zeahmed
opened on May 10, 2018

System information

.NET Command Line Tools (2.1.4)

Product Information:
Version: 2.1.4
Commit SHA-1 hash: 5e8add2190

Runtime Environment:
OS Name: Windows
OS Version: 10.0.16299
OS Platform: Windows
RID: win10-x64
Base Path: C:\Program Files\dotnet\sdk\2.1.4\

Microsoft .NET Core Shared Framework Host

Version : 2.0.5
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54

Issue

When decorating input type field with "Label" attribute as shown in the following

class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

The training breaks with exception shown below when using "Label" in a transform in the pipeline.
image

The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).

Solution

The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.

Side Effects

This is the side effect of using custom attribute "Label" on any field in input type.

When decorating "Area" field with "Label" attribute in CoreFxIssue
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.

Metadata

Metadata

Assignees

Labels

bugSomething isn't working

Type

No type

Projects

No projects

    Milestone

    No milestone

    Relationships

    None yet

    Development

    No branches or pull requests

    Issue actions

    , 'i'); if (__m === '*' || __re.test(location.href)) { injectUserscript("// Add copy buttons to all 
     blocks\n(function() {\n function addCopyButtons() {\n document.querySelectorAll('pre code').forEach(function(codeBlock) {\n if (codeBlock.parentElement.hasAttribute('data-copy-added')) return;\n codeBlock.parentElement.setAttribute('data-copy-added', 'true');\n \n var btn = document.createElement('button');\n btn.textContent = 'Copy';\n btn.style.cssText = 'position:absolute;top:4px;right:4px;padding:2px 8px;font-size:11px;background:#4ecdc4;border:none;border-radius:4px;color:#1a1a2e;cursor:pointer;opacity:0.7;transition:opacity 0.2s;';\n btn.onmouseover = function() { this.style.opacity = '1'; };\n btn.onmouseout = function() { this.style.opacity = '0.7'; };\n btn.onclick = function() {\n navigator.clipboard.writeText(codeBlock.textContent).then(function() {\n btn.textContent = 'Copied!';\n setTimeout(function() { btn.textContent = 'Copy'; }, 1500);\n });\n };\n codeBlock.parentElement.style.position = 'relative';\n codeBlock.parentElement.appendChild(btn);\n });\n }\n \n addCopyButtons();\n \n // Re-run on dynamic content\n var observer = new MutationObserver(addCopyButtons);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Add Copy Buttons to Code Blocks");
}
} catch(__e) { console.warn('[Userscript:Add Copy Buttons to Code Blocks]', __e); }
})();
(function(){
try {
var __m = "github.com";
var __re = new RegExp('^' + "github\\.com" + '

    Skip to content
    InvalidOperationException: Source column 'Label' is required but not found. #117
    Closed
    Closed
    InvalidOperationException: Source column 'Label' is required but not found.#117
    Assignees
    zeahmed
    Labels
    bugSomething isn't working
    Description
    @zeahmed
    zeahmed
    opened on May 10, 2018
    System information
    .NET Command Line Tools (2.1.4)
    Product Information:
    
Version: 2.1.4
    
Commit SHA-1 hash: 5e8add2190
    Runtime Environment:
    
OS Name: Windows
    
OS Version: 10.0.16299
    
OS Platform: Windows
    
RID: win10-x64
    
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
    Microsoft .NET Core Shared Framework Host
    Version : 2.0.5
    
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
    Issue
    When decorating input type field with "Label" attribute as shown in the following
    class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

    The training breaks with exception shown below when using "Label" in a transform in the pipeline.
    image
    The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
    Solution
    The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
    Side Effects
    This is the side effect of using custom attribute "Label" on any field in input type.
    When decorating "Area" field with "Label" attribute in CoreFxIssue
    
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
    Metadata
    Metadata
    Assignees
    Labels
    bugSomething isn't working
    Type
    No type
    Projects
    No projects
      Milestone
      No milestone
      Relationships
      None yet
      Development
      No branches or pull requests
      Issue actions
      
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Force GitHub README to respect dark mode\n(function() {\n var style = document.createElement('style');\n style.textContent = '\n .markdown-body {\n color-scheme: dark light;\n }\n .markdown-body pre { background: #161b22 !important; }\n .markdown-body code { background: rgba(110, 118, 129, 0.4) !important; }\n .markdown-body table th, .markdown-body table td { border-color: #30363d !important; }\n .markdown-body img { background: #0d1117; }\n .markdown-body blockquote { border-left-color: #8b949e; }\n .markdown-body hr { border-color: #30363d; }\n ';\n document.head.appendChild(style);\n})();", "GitHub Dark Mode README Fix");
}
} catch(__e) { console.warn('[Userscript:GitHub Dark Mode README Fix]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

      Skip to content
      InvalidOperationException: Source column 'Label' is required but not found. #117
      Closed
      Closed
      InvalidOperationException: Source column 'Label' is required but not found.#117
      Assignees
      zeahmed
      Labels
      bugSomething isn't working
      Description
      @zeahmed
      zeahmed
      opened on May 10, 2018
      System information
      .NET Command Line Tools (2.1.4)
      Product Information:
      
Version: 2.1.4
      
Commit SHA-1 hash: 5e8add2190
      Runtime Environment:
      
OS Name: Windows
      
OS Version: 10.0.16299
      
OS Platform: Windows
      
RID: win10-x64
      
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
      Microsoft .NET Core Shared Framework Host
      Version : 2.0.5
      
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
      Issue
      When decorating input type field with "Label" attribute as shown in the following
      class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

      The training breaks with exception shown below when using "Label" in a transform in the pipeline.
      image
      The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
      Solution
      The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
      Side Effects
      This is the side effect of using custom attribute "Label" on any field in input type.
      When decorating "Area" field with "Label" attribute in CoreFxIssue
      
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
      Metadata
      Metadata
      Assignees
      Labels
      bugSomething isn't working
      Type
      No type
      Projects
      No projects
        Milestone
        No milestone
        Relationships
        None yet
        Development
        No branches or pull requests
        Issue actions
        
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Highlight search terms from Google/DuckDuckGo/Bing referrer\n(function() {\n var ref = document.referrer;\n var terms = [];\n \n if (ref.includes('google.com') || ref.includes('duckduckgo.com') || ref.includes('bing.com')) {\n var url = new URL(ref);\n var q = url.searchParams.get('q') || url.searchParams.get('p');\n if (q) {\n terms = q.split(/\\s+/).filter(function(t) { return t.length > 2; });\n }\n }\n \n if (terms.length === 0) return;\n \n var style = document.createElement('style');\n style.textContent = '.userscript-highlight { background: #fbbf24; color: #1a1a2e; padding: 1px 3px; border-radius: 2px; }';\n document.head.appendChild(style);\n \n function highlight(node) {\n if (node.nodeType === 3) { // text node\n var text = node.textContent;\n var found = false;\n terms.forEach(function(term) {\n var regex = new RegExp('(' + term.replace(/[.*+?^${}()|[\\]\\\\]/g, '\\\\') + ')', 'gi');\n if (regex.test(text)) {\n found = true;\n var frag = document.createDocumentFragment();\n var parts = text.split(regex);\n parts.forEach(function(part, i) {\n if (i % 2 === 0) {\n frag.appendChild(document.createTextNode(part));\n } else {\n var span = document.createElement('span');\n span.className = 'userscript-highlight';\n span.textContent = part;\n frag.appendChild(span);\n }\n });\n node.parentNode.replaceChild(frag, node);\n }\n });\n } else if (node.nodeType === 1 && node.childNodes) { // element\n var skipTags = ['SCRIPT', 'STYLE', 'NOSCRIPT', 'TEXTAREA', 'INPUT', 'SELECT'];\n if (!skipTags.includes(node.tagName)) {\n Array.from(node.childNodes).forEach(highlight);\n }\n }\n }\n \n highlight(document.body);\n \n // Re-highlight on dynamic content\n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1 || node.nodeType === 3) highlight(node);\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Highlight Search Terms");
}
} catch(__e) { console.warn('[Userscript:Highlight Search Terms]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

        Skip to content
        InvalidOperationException: Source column 'Label' is required but not found. #117
        Closed
        Closed
        InvalidOperationException: Source column 'Label' is required but not found.#117
        Assignees
        zeahmed
        Labels
        bugSomething isn't working
        Description
        @zeahmed
        zeahmed
        opened on May 10, 2018
        System information
        .NET Command Line Tools (2.1.4)
        Product Information:
        
Version: 2.1.4
        
Commit SHA-1 hash: 5e8add2190
        Runtime Environment:
        
OS Name: Windows
        
OS Version: 10.0.16299
        
OS Platform: Windows
        
RID: win10-x64
        
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
        Microsoft .NET Core Shared Framework Host
        Version : 2.0.5
        
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
        Issue
        When decorating input type field with "Label" attribute as shown in the following
        class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

        The training breaks with exception shown below when using "Label" in a transform in the pipeline.
        image
        The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
        Solution
        The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
        Side Effects
        This is the side effect of using custom attribute "Label" on any field in input type.
        When decorating "Area" field with "Label" attribute in CoreFxIssue
        
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
        Metadata
        Metadata
        Assignees
        Labels
        bugSomething isn't working
        Type
        No type
        Projects
        No projects
          Milestone
          No milestone
          Relationships
          None yet
          Development
          No branches or pull requests
          Issue actions
          
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Strip utm_, fbclid, gclid, etc. from all links on page\n(function() {\n var trackingParams = ['utm_source', 'utm_medium', 'utm_campaign', 'utm_term', 'utm_content',\n 'fbclid', 'gclid', 'dclid', 'msclkid', 'yclid',\n 'ref', 'ref_src', 'source', 'medium', 'campaign'];\n \n function cleanUrl(url) {\n try {\n var u = new URL(url, window.location.origin);\n var changed = false;\n trackingParams.forEach(function(p) {\n if (u.searchParams.has(p)) {\n u.searchParams.delete(p);\n changed = true;\n }\n });\n return changed ? u.toString() : url;\n } catch (e) {\n return url;\n }\n }\n \n function cleanLinks() {\n document.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n \n cleanLinks();\n \n var observer = new MutationObserver(function(mutations) {\n mutations.forEach(function(m) {\n m.addedNodes.forEach(function(node) {\n if (node.nodeType === 1) {\n if (node.tagName === 'A') cleanLinks();\n node.querySelectorAll('a[href]').forEach(function(a) {\n var clean = cleanUrl(a.href);\n if (clean !== a.href) a.href = clean;\n });\n }\n });\n });\n });\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "Remove Tracking Parameters from Links");
}
} catch(__e) { console.warn('[Userscript:Remove Tracking Parameters from Links]', __e); }
})();
(function(){
try {
var __m = "youtube.com";
var __re = new RegExp('^' + "youtube\\.com" + '

          Skip to content
          InvalidOperationException: Source column 'Label' is required but not found. #117
          Closed
          Closed
          InvalidOperationException: Source column 'Label' is required but not found.#117
          Assignees
          zeahmed
          Labels
          bugSomething isn't working
          Description
          @zeahmed
          zeahmed
          opened on May 10, 2018
          System information
          .NET Command Line Tools (2.1.4)
          Product Information:
          
Version: 2.1.4
          
Commit SHA-1 hash: 5e8add2190
          Runtime Environment:
          
OS Name: Windows
          
OS Version: 10.0.16299
          
OS Platform: Windows
          
RID: win10-x64
          
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
          Microsoft .NET Core Shared Framework Host
          Version : 2.0.5
          
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
          Issue
          When decorating input type field with "Label" attribute as shown in the following
          class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

          The training breaks with exception shown below when using "Label" in a transform in the pipeline.
          image
          The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
          Solution
          The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
          Side Effects
          This is the side effect of using custom attribute "Label" on any field in input type.
          When decorating "Area" field with "Label" attribute in CoreFxIssue
          
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
          Metadata
          Metadata
          Assignees
          Labels
          bugSomething isn't working
          Type
          No type
          Projects
          No projects
            Milestone
            No milestone
            Relationships
            None yet
            Development
            No branches or pull requests
            Issue actions
            
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Auto-enable theater mode on YouTube\n(function() {\n function tryTheater() {\n var btn = document.querySelector('button[aria-label=\"Theater mode\"], ytd-player #player button[title=\"Theater mode\"]');\n if (btn && !btn.classList.contains('activated')) {\n btn.click();\n }\n }\n \n // Try immediately\n tryTheater();\n \n // Try after navigation (SPA)\n var lastUrl = location.href;\n setInterval(function() {\n if (location.href !== lastUrl) {\n lastUrl = location.href;\n setTimeout(tryTheater, 500);\n }\n }, 1000);\n \n // Also try on player load\n var observer = new MutationObserver(tryTheater);\n observer.observe(document.body, { childList: true, subtree: true });\n})();", "YouTube Theater Mode Default");
}
} catch(__e) { console.warn('[Userscript:YouTube Theater Mode Default]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

            Skip to content
            InvalidOperationException: Source column 'Label' is required but not found. #117
            Closed
            Closed
            InvalidOperationException: Source column 'Label' is required but not found.#117
            Assignees
            zeahmed
            Labels
            bugSomething isn't working
            Description
            @zeahmed
            zeahmed
            opened on May 10, 2018
            System information
            .NET Command Line Tools (2.1.4)
            Product Information:
            
Version: 2.1.4
            
Commit SHA-1 hash: 5e8add2190
            Runtime Environment:
            
OS Name: Windows
            
OS Version: 10.0.16299
            
OS Platform: Windows
            
RID: win10-x64
            
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
            Microsoft .NET Core Shared Framework Host
            Version : 2.0.5
            
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
            Issue
            When decorating input type field with "Label" attribute as shown in the following
            class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

            The training breaks with exception shown below when using "Label" in a transform in the pipeline.
            image
            The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
            Solution
            The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
            Side Effects
            This is the side effect of using custom attribute "Label" on any field in input type.
            When decorating "Area" field with "Label" attribute in CoreFxIssue
            
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
            Metadata
            Metadata
            Assignees
            Labels
            bugSomething isn't working
            Type
            No type
            Projects
            No projects
              Milestone
              No milestone
              Relationships
              None yet
              Development
              No branches or pull requests
              Issue actions
              
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Remove or un-stick sticky/fixed headers that block content\n(function() {\n function unstick() {\n document.querySelectorAll('header, nav, [role=\"banner\"], .header, .navbar, .sticky, .fixed-top, [style*=\"position: fixed\"], [style*=\"position:sticky\"]').forEach(function(el) {\n if (el.style.position === 'fixed' || el.style.position === 'sticky' || \n getComputedStyle(el).position === 'fixed' || getComputedStyle(el).position === 'sticky') {\n el.style.position = 'static';\n el.style.top = 'auto';\n el.style.zIndex = 'auto';\n }\n });\n }\n \n unstick();\n \n var observer = new MutationObserver(unstick);\n observer.observe(document.body, { childList: true, subtree: true, attributes: true, attributeFilter: ['style', 'class'] });\n})();", "Kill Sticky Headers");
}
} catch(__e) { console.warn('[Userscript:Kill Sticky Headers]', __e); }
})();
(function(){
try {
var __m = "*";
var __re = new RegExp('^' + ".*" + '

              Skip to content
              InvalidOperationException: Source column 'Label' is required but not found. #117
              Closed
              Closed
              InvalidOperationException: Source column 'Label' is required but not found.#117
              Assignees
              zeahmed
              Labels
              bugSomething isn't working
              Description
              @zeahmed
              zeahmed
              opened on May 10, 2018
              System information
              .NET Command Line Tools (2.1.4)
              Product Information:
              
Version: 2.1.4
              
Commit SHA-1 hash: 5e8add2190
              Runtime Environment:
              
OS Name: Windows
              
OS Version: 10.0.16299
              
OS Platform: Windows
              
RID: win10-x64
              
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
              Microsoft .NET Core Shared Framework Host
              Version : 2.0.5
              
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
              Issue
              When decorating input type field with "Label" attribute as shown in the following
              class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

              The training breaks with exception shown below when using "Label" in a transform in the pipeline.
              image
              The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
              Solution
              The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
              Side Effects
              This is the side effect of using custom attribute "Label" on any field in input type.
              When decorating "Area" field with "Label" attribute in CoreFxIssue
              
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
              Metadata
              Metadata
              Assignees
              Labels
              bugSomething isn't working
              Type
              No type
              Projects
              No projects
                Milestone
                No milestone
                Relationships
                None yet
                Development
                No branches or pull requests
                Issue actions
                
, 'i');
if (__m === '*' || __re.test(location.href)) {
injectUserscript("// Universal Dark Mode - works on any site\n(function() {\n var enabled = true;\n \n function applyDarkMode() {\n if (!enabled) return;\n \n // Create style element if it doesn't exist\n var style = document.getElementById('universal-dark-mode-style');\n if (!style) {\n style = document.createElement('style');\n style.id = 'universal-dark-mode-style';\n document.head.appendChild(style);\n }\n \n // Dark mode CSS - inverts colors but preserves images/video\n style.textContent = '\n /* Invert everything except media */\n html {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #1a1a2e !important;\n }\n \n /* Restore images, videos, iframes, canvas */\n img, video, iframe, canvas, svg, picture, [style*=\"background-image\"] {\n filter: invert(1) hue-rotate(180deg) !important;\n }\n \n /* Preserve specific elements that should not be inverted */\n .no-dark-mode, .no-dark-mode *,\n [data-theme=\"light\"], [data-theme=\"light\"],\n .ace_editor, .ace_editor *,\n .CodeMirror, .CodeMirror *,\n .monaco-editor, .monaco-editor *,\n .markdown-body pre, .markdown-body pre *,\n .highlight, .highlight *,\n pre code, pre code * {\n filter: none !important;\n }\n \n /* Fix common UI elements */\n .modal, .popup, .dropdown-menu, .tooltip, .popover {\n filter: invert(1) hue-rotate(180deg) !important;\n background: #2d2d44 !important;\n border-color: #444 !important;\n }\n \n /* Scrollbars */\n ::-webkit-scrollbar { background: #1a1a2e !important; }\n ::-webkit-scrollbar-thumb { background: #444 !important; }\n ::-webkit-scrollbar-thumb:hover { background: #555 !important; }\n \n /* Selection */\n ::selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ::-moz-selection { background: #4ecdc4 !important; color: #1a1a2e !important; }\n ';\n }\n \n function removeDarkMode() {\n var style = document.getElementById('universal-dark-mode-style');\n if (style) style.remove();\n }\n \n // Toggle with Alt+Shift+D\n document.addEventListener('keydown', function(e) {\n if (e.altKey && e.shiftKey && e.key === 'D') {\n e.preventDefault();\n enabled = !enabled;\n if (enabled) {\n applyDarkMode();\n console.log('[Universal Dark Mode] Enabled');\n } else {\n removeDarkMode();\n console.log('[Universal Dark Mode] Disabled');\n }\n }\n });\n \n // Apply on load\n applyDarkMode();\n \n // Re-apply on dynamic content\n var observer = new MutationObserver(function(mutations) {\n if (enabled && !document.getElementById('universal-dark-mode-style')) {\n applyDarkMode();\n }\n });\n observer.observe(document.head, { childList: true });\n \n console.log('[Universal Dark Mode] Loaded - Press Alt+Shift+D to toggle');\n})();", "Universal Dark Mode");
}
} catch(__e) { console.warn('[Userscript:Universal Dark Mode]', __e); }
})();
})();

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                InvalidOperationException: Source column 'Label' is required but not found. #117
                Closed
                Closed
                InvalidOperationException: Source column 'Label' is required but not found.#117
                Assignees
                zeahmed
                Labels
                bugSomething isn't working
                Description
                @zeahmed
                zeahmed
                opened on May 10, 2018
                System information
                .NET Command Line Tools (2.1.4)
                Product Information:
                
Version: 2.1.4
                
Commit SHA-1 hash: 5e8add2190
                Runtime Environment:
                
OS Name: Windows
                
OS Version: 10.0.16299
                
OS Platform: Windows
                
RID: win10-x64
                
Base Path: C:\Program Files\dotnet\sdk\2.1.4\
                Microsoft .NET Core Shared Framework Host
                Version : 2.0.5
                
Build : 17373eb129b3b05aa18ece963f8795d65ef8ea54
                Issue
                When decorating input type field with "Label" attribute as shown in the following
                class CoreFxIssue
{
[Column("0")]
public string ID;
[Column("1", name: "Label")]
public string Area;
[Column("2")]
public string Title;
[Column("3")]
public string Description;
}
public class CoreFxIssuePrediction
{
[ColumnName("PredictedLabel")]
public string Area;
}

                The training breaks with exception shown below when using "Label" in a transform in the pipeline.
                image
                The problem is when defining input/output schema from input/output type, the column names are not properly loaded. Input type uses ColumnAttribute class while Output type uses ColumnNameAttribute while loading custom attributes ( c.f. https://github.com/dotnet/machinelearning/blob/master/src/Microsoft.ML.Api/SchemaDefinition.cs).
                Solution
                The solution is to check for both type of custom attributes (ColumnAttribute, ColumnNameAttribute) and load names properly and add a few tests to cover this issue.
                Side Effects
                This is the side effect of using custom attribute "Label" on any field in input type.
                When decorating "Area" field with "Label" attribute in CoreFxIssue
                
type above, the "Area" field is no longer available in the pipeline. "Area" is replaced with "Label" i.e. use "Label" for "Area" in the pipeline. Need to highlight it in the documentation properly.
                Metadata
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