Issue in creating exe : Module Not Found in PyInstaller-Built NiceGUI

[07rohanraj]

Hi,

I’m encountering a ModuleNotFoundError for the frontend.home module when running my PyInstaller-built NiceGUI application. Here's a detailed overview of my setup and the issue:

Project Structure:

SBOM-Generator-Tool/
├── assets/
├── backend/
│   ├── cyclonedx-cli/
│   └── SBOM_Generator_GUI.py
├── frontend/
│   ├── __init__.py
│   ├── home/
│   │   ├── __init__.py
│   │   └── some_file.py
│   └── other modules...
├── _res/
└── other directories...

Command used for pyInstaller:

PyInstaller --onefile --windowed --clean --additional-hooks-dir=hooks --hidden-import=numpy --hidden-import=pandas --collect-all nicegui --add-data "assets/*;assets" --add-data "_res/*;cyclonedx/schema/_res" --add-data "frontend/*;frontend" .\backend\SBOM_Generator_GUI.py

Error:
After building the .exe file, when I run it, I get the following error:

Traceback (most recent call last):
  File "SBOM_Generator_GUI.py", line 73, in <module>
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1310, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 488, in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1360, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1324, in _find_and_load_unlocked
ModuleNotFoundError: No module named 'frontend.home'

Backend code has these imports:

  from frontend.home.home_ui import Home_ui
  from frontend.create_sbom.create_sbom_ui import create_sbom
  from frontend.Add_edit.add_edit_ui import add_edit
  from frontend.loading_ui.loading_cpe_ui import loading_cpe_ui

What I've Tried:

• Explicitly added frontend using --add-data "frontend/*;frontend"
• Used --debug=imports but couldn't find any missing imports from frontend

Questions:
- Is there a specific way NiceGUI handles folder structures or imports that I might be missing?
- How do I ensure that all modules in frontend are included correctly in the PyInstaller bundle?
- Could this be related to NiceGUI's handling of paths or PyInstaller's packaging?

[ed2050]

frontend.home appears to be your code. Can't tell if the problem is there or with nicegui.

Have you tried the pyinstaller docs? They have several pages on common problems and troubleshooting. I also see a number of forum posts on "no module found" errors.