Troubleshooting

Here are some common errors and how to solve them.

First thing first, please make sure that the requirements.txt only contains these packages:

# Core Packages
numpy
pandas
matplotlib
seaborn
scipy

# Machine Learning
scikit-learn

# Data Processing & Analysis
sqlalchemy

Try creating the environment and downloading the dependency again Create a Virtual Environment

Windows

Error: ExecutionError

(Also as known as: Running scripts is disabled / Ausführung von Skripts auf diesem System deaktiviert)

To solve this issue, follow these steps:

1. Open PowerShell as Administrator:

   • Right-click on the Windows Start menu.

   • Select Windows PowerShell (Admin) or PowerShell (Admin).

2. Check the current Execution Policy: Enter this command and press Enter:

Get-ExecutionPolicy

If it shows Restricted, that means script execution is disabled.

1. Change the Execution Policy temporarily: To allow the script to run, enter this command and press Enter:

   Set-ExecutionPolicy -ExecutionPolicy RemoteSigned -Scope CurrentUser

   • Type Y when prompted. (or J in German)

   • This change is applied only for the current user and allows running locally created scripts.

2. Activate your virtual environment: Now try to activate it again:

   .\venv\Scripts\Activate
   
   or
   .\venv\Scripts\activate

Error: pip: command not found

Cause:

• pip is not installed or not linked to Python's PATH.

Solution:

1. Check pip installation:

   python -m pip --version

2. If not installed, install it:

   python -m ensurepip --upgrade

3. If still not recognized, reinstall pip:

   curl https://bootstrap.pypa.io/get-pip.py -o get-pip.py
   python get-pip.py

4. If path issues persist, add to PATH manually:

   setx PATH "%PATH%;C:\Users\<YourUsername>\AppData\Local\Programs\Python\Python39\Scripts"

5. Restart your terminal and verify:

   pip --version

Error: ModuleNotFoundError After Activation

Error Message:

ModuleNotFoundError: No module named 'pandas'

Cause:

• Dependencies are not installed inside the virtual environment.

Solution:

• Ensure the environment is activated:

  .\venv\Scripts\Activate
  
  # Or
  .\venv\Scripts\activate

• Install your dependencies:

  pip install pandas

MacOS

Tip: Resetting VS Code helps in some cases:

• If you don't see some of the options in the guide, despite having done everything, try reseting VS Code by turning it off and on again.

• If you have installed Git but cannot see some option

• If you have created a virtual environment but cannot find it