FreeCAD won't start, even appimage after pySide2 install

[s-light]

you have a local installation of shiboken. This will hide the package within the appimage.

thanks for your help looo!
seems that this was installed as dependency with my

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pip3 install PySide2

but not removed on my uninstall...

now it is working again!!

[drmacro]

This is extremely frustrating. I'm out of ideas. What does it take to tell FC where sh** is. Or, what is messed up so bad on this machine that prevents FC from finding it?

I have completely uninstalled everything in the deps list. Uninstalled everything of python3 and pyside2.

Then reinstalled everything.
Confirmed it's all there, python seems to be running python3. (i.e. the sym links seem to be ok.)

and, with no errors, rebuilt FC.

And when I run FC from the terminal:

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During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Arch/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Tux/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/AddonManager/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Draft/InitGui.py
Please look into the log file for further information
Unknown command 'Std_AddonMgr'
Fatal Python error: could not initialize part 2
Python runtime state: initialized

Current thread 0x00007fe5ff3f6100 (most recent call first):
  File "/usr/lib/python3/dist-packages/six.py", line 128 in __init__
  File "/usr/lib/python3/dist-packages/six.py", line 320 in <module>
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 783 in exec_module
  File "<frozen importlib._bootstrap>", line 671 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 975 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 991 in _find_and_load
  File "/home/mac/freecad-build/Mod/Start/StartPage/StartPage.py", line 27 in <module>
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 783 in exec_module
  File "<frozen importlib._bootstrap>", line 671 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 975 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 991 in _find_and_load
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1042 in _handle_fromlist
  File "<string>", line 2 in <module>
Aborted (core dumped)

[Syres]

This is extremely frustrating. I'm out of ideas.

I'm guessing you don't have a Timeshift equivalent on your Linux distro, it really pulled me out of the mire when I messed with something that I didn't understand? If not, then maybe this could be of use https://forum.freecadweb.org/viewtopic.php?f=10&t=55612

[looo]

now it is working again!!

nice

This is extremely frustrating. I'm out of ideas. What does it take to tell FC where sh** is. Or, what is messed up so bad on this machine that prevents FC from finding it?

I have completely uninstalled everything in the deps list. Uninstalled everything of python3 and pyside2.

Then reinstalled everything.
Confirmed it's all there, python seems to be running python3. (i.e. the sym links seem to be ok.)

and, with no errors, rebuilt FC.

And when I run FC from the terminal:

Code: Select all

During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Arch/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Tux/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/AddonManager/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Draft/InitGui.py
Please look into the log file for further information
Unknown command 'Std_AddonMgr'
Fatal Python error: could not initialize part 2
Python runtime state: initialized

Current thread 0x00007fe5ff3f6100 (most recent call first):
  File "/usr/lib/python3/dist-packages/six.py", line 128 in __init__
  File "/usr/lib/python3/dist-packages/six.py", line 320 in <module>
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 783 in exec_module
  File "<frozen importlib._bootstrap>", line 671 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 975 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 991 in _find_and_load
  File "/home/mac/freecad-build/Mod/Start/StartPage/StartPage.py", line 27 in <module>
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap_external>", line 783 in exec_module
  File "<frozen importlib._bootstrap>", line 671 in _load_unlocked
  File "<frozen importlib._bootstrap>", line 975 in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 991 in _find_and_load
  File "<frozen importlib._bootstrap>", line 219 in _call_with_frames_removed
  File "<frozen importlib._bootstrap>", line 1042 in _handle_fromlist
  File "<string>", line 2 in <module>
Aborted (core dumped)

maybe cueck your installed pyside versions with something like this:

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sudo find / -type d -name 'PySide2' 2>/dev/null

I guess you have two incompatible pyside2/qt5 versions installed.

[user1234]

On what OS you are? When you are on a Debian based OS, have you installed packages like freecad-python3 and other python packages?

Long time ago i had the issue, that CMake had issues to find the correct python packages, especially when some meta-packages are installed. FreeCAD had compiled, but had also python issues.

If not, then maybe this could be of use https://forum.freecadweb.org/viewtopic.php?f=10&t=55612

That is the reason why i only use one package manager. Also for me pip is shadowy (what is where installed).

Greetings

[drmacro]

On what OS you are? When you are on a Debian based OS, have you installed packages like freecad-python3 and other python packages?

...

I'm discussing this on gitter as well, so I forget what I've said where...

But, this particular PC (Ubuntu 20.04) has been, daily, updating from github, compiling and running FC 0.20 for a couple months.

This is new behavior after attempting to get the uic to python converter for pyside2.

[drmacro]

Some progress after reading the link offered by @Syres.

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grep -ri shiboken2 ~/.local

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grep -ri pyside ~/.local

Recommended by the link list a lot...but, wasn't sure how to remove them (Yes, I know the rm command, but...)

Ran:

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pip uninstall six shiboken2

Now when I start FC, I get this, but the FC GUI does launch:

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During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Arch/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Tux/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/AddonManager/InitGui.py
Please look into the log file for further information
During initialization the error "name '_init_pyside_extension' is not defined" occurred in /home/mac/freecad-build/Mod/Draft/InitGui.py
Please look into the log file for further information
Unknown command 'Std_AddonMgr'
Traceback (most recent call last):
  File "<string>", line 2, in <module>
  File "/home/mac/freecad-build/Mod/Start/StartPage/StartPage.py", line 27, in <module>
    import six
<class 'ModuleNotFoundError'>: No module named 'six'
No module named 'six'
connect failed: No such file or directory
 

[drmacro]

Success!

I had to:

uninstall

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pip uninstall PySide2 shiboken2

At this point FC would start but still couldn't find a couple differe UI init files

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During initialization the error "UI file does not exist" occurred in /home/mac/freecad-build/Mod/Arch/InitGui.py
Please look into the log file for further information
During initialization the error "UI file does not exist" occurred in /home/mac/freecad-build/Mod/Draft/InitGui.py
Please look into the log file for further information
(

Then I used apt to reinstall all the prescribed FC deps. And rebuilt FC.

It now appears to be fixed.

[user1234]

I am on Debian 11 (testing). So the packages should be similar.

I have only pyside related packages installed:

- libpyside2-dev
- libpyside2-py3-5.15
- libshiboken2-dev
- libshiboken2-py3-5.15
- shiboken2
- pyside2-tools !! (maybe this is missing)
- python3-pyside2.qtcore
- python3-pyside2.qtgui
- python3-pyside2.qtopengl (this is afaik not for FreeCAD)
- python3-pyside2.qtsvg
- python3-pyside2.qtuitools
- python3-pyside2.qtwidgets
- python3-pyside2.qtxml
- python3-pyside2.qtxmlpatterns

Also note, that that cmake recognize the correct setting and folders/files.

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Greetings

edit: to late, but i am glad that it works now.

[chrisb]

As this was going a bit to and fro: would you mind writing an entry for the Known OS specific issues topic? You can add it here, and I add it to the issues.