Error when building with ODC

[maysunfaisal]

I am pasting the pod describe and pod log:

Maysuns-MacBook-Pro:openshift-install-mac maysun$ oc describe po devfile-sample-python-basic-66b96fcb96-x459t 
Name: devfile-sample-python-basic-66b96fcb96-x459t
Namespace: mjf
Priority: 0
PriorityClassName: <none>
Node: ip-10-0-138-26.us-east-2.compute.internal/10.0.138.26
Start Time: Wed, 28 Apr 2021 16:47:42 -0400
Labels: app=devfile-sample-python-basic
 deploymentconfig=devfile-sample-python-basic
 pod-template-hash=66b96fcb96
Annotations: k8s.v1.cni.cncf.io/network-status=[{
 "name": "",
 "interface": "eth0",
 "ips": [
 "10.129.2.68"
 ],
 "default": true,
 "dns": {}
}]
 k8s.v1.cni.cncf.io/networks-status=[{
 "name": "",
 "interface": "eth0",
 "ips": [
 "10.129.2.68"
 ],
 "default": true,
 "dns": {}
}]
 openshift.io/scc=restricted
Status: Running
IP: 10.129.2.68
Controlled By: ReplicaSet/devfile-sample-python-basic-66b96fcb96
Containers:
 devfile-sample-python-basic:
 Container ID: cri-o://6cf7d6162671506aac535efb4bf02441c1e1c4b5443a0d84acba989d12cce7c3
 Image: image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53
 Image ID: image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53
 Port: 8080/TCP
 Host Port: 0/TCP
 State: Waiting
 Reason: CrashLoopBackOff
 Last State: Terminated
 Reason: Error
 Exit Code: 1
 Started: Wed, 28 Apr 2021 16:48:04 -0400
 Finished: Wed, 28 Apr 2021 16:48:04 -0400
 Ready: False
 Restart Count: 2
 Limits:
 memory: 1Gi
 Requests:
 memory: 1Gi
 Environment:
 PROJECTS_ROOT: /projects
 PROJECT_SOURCE: /projects
 Mounts:
 /var/run/secrets/kubernetes.io/serviceaccount from default-token-66q2s (ro)
Conditions:
 Type Status
 Initialized True 
 Ready False 
 ContainersReady False 
 PodScheduled True 
Volumes:
 default-token-66q2s:
 Type: Secret (a volume populated by a Secret)
 SecretName: default-token-66q2s
 Optional: false
QoS Class: Burstable
Node-Selectors: <none>
Tolerations: node.kubernetes.io/memory-pressure:NoSchedule
 node.kubernetes.io/not-ready:NoExecute for 300s
 node.kubernetes.io/unreachable:NoExecute for 300s
Events:
 Type Reason Age From Message
 ---- ------ ---- ---- -------
 Normal Scheduled <unknown> Successfully assigned mjf/devfile-sample-python-basic-66b96fcb96-x459t to ip-10-0-138-26.us-east-2.compute.internal
 Normal AddedInterface 48s multus Add eth0 [10.129.2.68/23]
 Normal Pulled 45s kubelet, ip-10-0-138-26.us-east-2.compute.internal Successfully pulled image "image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53" in 2.7506209s
 Normal Pulled 44s kubelet, ip-10-0-138-26.us-east-2.compute.internal Successfully pulled image "image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53" in 81.271439ms
 Normal Pulling 27s (x3 over 47s) kubelet, ip-10-0-138-26.us-east-2.compute.internal Pulling image "image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53"
 Normal Created 27s (x3 over 44s) kubelet, ip-10-0-138-26.us-east-2.compute.internal Created container devfile-sample-python-basic
 Normal Started 27s (x3 over 44s) kubelet, ip-10-0-138-26.us-east-2.compute.internal Started container devfile-sample-python-basic
 Normal Pulled 27s kubelet, ip-10-0-138-26.us-east-2.compute.internal Successfully pulled image "image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53" in 78.973057ms
 Warning BackOff 11s (x4 over 43s) kubelet, ip-10-0-138-26.us-east-2.compute.internal Back-off restarting failed container
Maysuns-MacBook-Pro:openshift-install-mac maysun$ 
Maysuns-MacBook-Pro:openshift-install-mac maysun$ 
Maysuns-MacBook-Pro:openshift-install-mac maysun$ 
Maysuns-MacBook-Pro:openshift-install-mac maysun$ 
Maysuns-MacBook-Pro:openshift-install-mac maysun$ oc logs -f devfile-sample-python-basic-66b96fcb96-x459t 
Traceback (most recent call last):
 File "/projects/app.py", line 1, in <module>
 from flask import Flask
ModuleNotFoundError: No module named 'flask'

[maysunfaisal]

Build Config build says build is successful:

Cloning "https://github.com/elsony/devfile-sample-python-basic" ...
	Commit:	c8ad2caf48743afceb9ddbca24474e2256c1210c (Move icon to .devfile folder)
	Author:	eyuen <eyuen@redhat.com>
	Date:	Wed Apr 28 15:53:07 2021 -0400
Caching blobs under "/var/cache/blobs".

Pulling image python:slim ...
Getting image source signatures
Copying blob sha256:f7ec5a41d630a33a2d1db59b95d89d93de7ae5a619a3a8571b78457e48266eba
Copying blob sha256:7e166269edc8a525496ddb8b8da9d24e14e86023909bdd8a8071286248000429
Copying blob sha256:ac4bddc73958ff36b2c0655c1a22b9f272f2e1ba1fe13a3e1087d7bdb3cfe470
Copying blob sha256:388aab6f395415d7b5f9dcb43e1358fc58c8c6d611abe54624a573b652ae9411
Copying blob sha256:9501c65d3a7f8312515595d4925124500458e4e8bcc20ef26759b83daa16f0a2
Copying config sha256:ec4ebd7d6bf5328c7d6aefb67270515592e87554ca65f1d738fc4c4cd35cecfa
Writing manifest to image destination
Storing signatures
Adding transient rw bind mount for /run/secrets/rhsm
STEP 1: FROM python:slim
STEP 2: WORKDIR /projects
--> 69d64d4c01b
STEP 3: COPY . .
--> b458e09e3bb
STEP 4: RUN pip install --user -r requirements.txt
Collecting Flask==1.1.2
 Downloading Flask-1.1.2-py2.py3-none-any.whl (94 kB)
Collecting Jinja2>=2.10.1
 Downloading Jinja2-2.11.3-py2.py3-none-any.whl (125 kB)
Collecting click>=5.1
 Downloading click-7.1.2-py2.py3-none-any.whl (82 kB)
Collecting Werkzeug>=0.15
 Downloading Werkzeug-1.0.1-py2.py3-none-any.whl (298 kB)
Collecting itsdangerous>=0.24
 Downloading itsdangerous-1.1.0-py2.py3-none-any.whl (16 kB)
Collecting MarkupSafe>=0.23
 Downloading MarkupSafe-1.1.1-cp39-cp39-manylinux2010_x86_64.whl (32 kB)
Installing collected packages: MarkupSafe, Werkzeug, Jinja2, itsdangerous, click, Flask
 WARNING: The script flask is installed in '/root/.local/bin' which is not on PATH.
 Consider adding this directory to PATH or, if you prefer to suppress this warning, use --no-warn-script-location.
WARNING: Value for scheme.headers does not match. Please report this to <https://github.com/pypa/pip/issues/9617>
distutils: /root/.local/include/python3.9/UNKNOWN
sysconfig: /root/.local/include/python3.9
WARNING: Additional context:
user = True
home = None
root = None
prefix = None
WARNING: Running pip as root will break packages and permissions. You should install packages reliably by using venv: https://pip.pypa.io/warnings/venv
Successfully installed Flask-1.1.2 Jinja2-2.11.3 MarkupSafe-1.1.1 Werkzeug-1.0.1 click-7.1.2 itsdangerous-1.1.0
--> 1d0baa05b17
STEP 5: EXPOSE 8080
--> ae89528fa37
STEP 6: CMD ["python","app.py"]
--> 81c7d92740d
STEP 7: ENV "OPENSHIFT_BUILD_NAME"="devfile-sample-python-basic-1" "OPENSHIFT_BUILD_NAMESPACE"="mjf" "OPENSHIFT_BUILD_SOURCE"="https://github.com/elsony/devfile-sample-python-basic" "OPENSHIFT_BUILD_COMMIT"="c8ad2caf48743afceb9ddbca24474e2256c1210c"
--> b1e1327306d
STEP 8: LABEL "io.openshift.build.commit.author"="eyuen <eyuen@redhat.com>" "io.openshift.build.commit.date"="Wed Apr 28 15:53:07 2021 -0400" "io.openshift.build.commit.id"="c8ad2caf48743afceb9ddbca24474e2256c1210c" "io.openshift.build.commit.message"="Move icon to .devfile folder" "io.openshift.build.commit.ref"="main" "io.openshift.build.name"="devfile-sample-python-basic-1" "io.openshift.build.namespace"="mjf" "io.openshift.build.source-location"="https://github.com/elsony/devfile-sample-python-basic"
STEP 9: COMMIT temp.builder.openshift.io/mjf/devfile-sample-python-basic-1:fa8c53b5
--> 03fb579f748
03fb579f7480565657b621a6a8645a335c1c9a253a478b63c262b17a37c390fa

Pushing image image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic:latest ...
Getting image source signatures
Copying blob sha256:ac4bddc73958ff36b2c0655c1a22b9f272f2e1ba1fe13a3e1087d7bdb3cfe470
Copying blob sha256:388aab6f395415d7b5f9dcb43e1358fc58c8c6d611abe54624a573b652ae9411
Copying blob sha256:9501c65d3a7f8312515595d4925124500458e4e8bcc20ef26759b83daa16f0a2
Copying blob sha256:7e166269edc8a525496ddb8b8da9d24e14e86023909bdd8a8071286248000429
Copying blob sha256:e2e0d8af363b54f45ee1a7786a1b5d908bb79862d649e4d123e6bd2ed74a8388
Copying blob sha256:f7ec5a41d630a33a2d1db59b95d89d93de7ae5a619a3a8571b78457e48266eba
Copying blob sha256:4d93c240e9ae36504e6702266c07b495183f2a9a67e7b963017a568e7571e1f6
Copying config sha256:03fb579f7480565657b621a6a8645a335c1c9a253a478b63c262b17a37c390fa
Writing manifest to image destination
Storing signatures
Successfully pushed image-registry.openshift-image-registry.svc:5000/mjf/devfile-sample-python-basic@sha256:894c79c9aa4d145faceafc217f0046c373b36826189d4630929f44f92e00ec53
Push successful