Hi @michael_kenshipvip , the requirement file goes in the repository only by the name requirements.txt, you can select add file then either upload or create the file.
ok I also have problem with import plotly.express as px. When I delete this line (and others connected) my app works fine, but i want to have some charts! Please help, GitHub - darekpe79/darek
Streamlit link https://share.streamlit.io/darekpe79/darek/main/sportAPI.py
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Hi @darekpe_pe, welcome to the Streamlit community!! 
It looks like there’s a typo in your requirments.txt filename, that’s causing none of your Python dependencies, including Plotly Express, from being installed on Streamlit Cloud.
Rename requirments.txt to requirements.txt to fix the issue. 
Happy Streamlit-ing! 
Snehan
2 Likes
Thank you!
ModuleNotFoundError: This app has encountered an error. The original error message is redacted to prevent data leaks. Full error details have been recorded in the logs (if you’re on Streamlit Cloud, click on ‘Manage app’ in the lower right of your app).
Traceback:
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 563, in _run_script
exec(code, module.__dict__)File "/app/sales-analysis-project/Web_dashboard.py", line 2, in <module>
import plotly.express as px # pip install plotly-express
why why whhhhyyyy
Hi @RaedOkal 
Welcome to the Streamlit forum! Please take a moment to read through our guidelines on how to post an effective question on the forum and, in particular, please share the link to your public Streamlit Cloud app, GitHub repo, and your requirements file.
Hello, I found the same problem here. I have included plotly in my requirements.txt, but it is still not working. Same thing goes to cleantext and wordcloud library. Below is my repo link:
https://github.com/Yung01/Senzer.git
No, you have included it in requirements.txt.txt.
I have tried to named it as requirements.txt, and this is the error I get:
installer returned a non-zero exit code
I have tried to named it as requirements.txt, and this is the error I get:
The file no longer contains an extension: Create requirements · Yung01/Senzer@02c60d1 · GitHub
Rename requirements to requirements.txt.
I have renamed it, but I’m still getting error:
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 565, in _run_script
exec(code, module.__dict__)
File "/app/senzer/pages/3_Dashboard.py", line 4, in <module>
import plotly.express as px
It shows error:
Collecting streamlit
Downloading streamlit-1.17.0-py2.py3-none-any.whl (9.3 MB)
━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 9.3/9.3 MB 139.9 MB/s eta 0:00:00[2023-01-19 12:15:56.201637]
ERROR: Could not find a version that satisfies the requirement PIL (from versions: none)
ERROR: No matching distribution found for PIL
WARNING: You are using pip version 22.0.3; however, version 22.3.1 is available.
You should consider upgrading via the '/home/appuser/venv/bin/python -m pip install --upgrade pip' command.
Checking if Streamlit is installed
────────────────────────────────────────────────────────────────────────────────────────
[12:15:56] ❗️ installer returned a non-zero exit code
[12:15:56] ❗️ Error during processing dependencies! Please fix the error and push an update, or try restarting the app.
It seems like it cannot read the requirement file at all.
I guess you want pillow instead of PIL.
You’ve included an incorrect package name. The package is pillow, not PIL. While you import it as PIL, the package name on PyPI is pillow. You also want to remove pickle as it is part of the Python Standard Library:
Thank you so much!
But now I got the other error:
Collecting clean-text
Downloading clean_text-0.6.0-py3-none-any.whl (11 kB)
ERROR: Could not find a version that satisfies the requirement pickle (from versions: none)
Is this error about clean-text having wrong package name or the pickle having wrong package name?
It is about pickle not being found in pypi because it is part of the standard library.
So does it means that I do not need to include pickle in the requirements.txt?
Yes.
Hi, folks! I need help as well 
I’m still getting [ModuleNotFoundError: No module named ‘plotly’] errors although I’ve already included it in the requirements.txt file!
Here’s a link to my repository: https://github.com/
It’s where I followed the step-by-step guide of this great tutorial from Youtube https://youtu.be/3egaMfE9388
It works just fine on the local site but when I try to deploy it via streamlit cloud, here’s what it comes out from the log:
[11:14:56] 🐍 Python dependencies were installed from /app/myapp124/requirements.txt using pip.
[11:14:56] 📦 Processed dependencies!
Stopping...
Collecting usage statistics. To deactivate, set browser.gatherUsageStats to False.
[11:14:59] 🔄 Updated app!
[11:33:28] 🐙 Pulling code changes from Github...
[11:33:29] 📦 Processing dependencies...
[11:33:29] 📦 Processed dependencies!
[11:33:31] 🔄 Updated app!
[12:41:32] 🐙 Pulling code changes from Github...
2023-01-24 12:41:33.306 Uncaught app exception
Traceback (most recent call last):
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 565, in _run_script
exec(code, module.__dict__)
File "/app/myapp124/main.py", line 3, in <module>
import plotly.graph_objects as go
ModuleNotFoundError: No module named 'plotly'
[12:41:43] 🐙 Pulling code changes from Github...
[12:41:54] 🐙 Pulling code changes from Github...
[12:42:05] 🐙 Pulling code changes from Github...
2023-01-24 12:42:09.225 Uncaught app exception
Traceback (most recent call last):
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 565, in _run_script
exec(code, module.__dict__)
File "/app/myapp124/main.py", line 3, in <module>
import plotly.graph_objects as go
ModuleNotFoundError: No module named 'plotly'
[12:42:16] 🐙 Pulling code changes from Github...
[12:42:27] ❗️ Updating the app files has failed: git pull, cmd: sudo -u appuser GIT_SSH_COMMAND='ssh -i /home/appuser/.ssh/id_github -o IdentitiesOnly=yes -o StrictHostKeyChecking=no -o "LogLevel ERROR"' git fetch origin && sudo -u appuser git reset --hard origin/main: error: exit status 128: error: unable to create file .streamlit/config.toml: Permission denied
fatal: Could not reset index file to revision 'origin/main'.
[12:43:29] 🐙 Pulling code changes from Github...
2023-01-24 12:43:38.284 Uncaught app exception
Traceback (most recent call last):
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 565, in _run_script
exec(code, module.__dict__)
File "/app/myapp124/main.py", line 3, in <module>
import plotly.graph_objects as go
ModuleNotFoundError: No module named 'plotly'
2023-01-24 12:43:40.870 Uncaught app exception
Traceback (most recent call last):
File "/home/appuser/venv/lib/python3.9/site-packages/streamlit/runtime/scriptrunner/script_runner.py", line 565, in _run_script
exec(code, module.__dict__)
File "/app/myapp124/main.py", line 3, in <module>
import plotly.graph_objects as go
ModuleNotFoundError: No module named 'plotly'
It seems to have repeated several times before it crashed!