Unable to run current Release Build, missing library

[AnthonyvW]

Hello, I recently downloaded the latest Windows Release build of Linear Stitch to compare it against other image stitching algorithms for tree cores and it fails to run as it seems to be missing 2 libraries.

OS Version : Windows 10 Pro

Traceback (most recent call last):
  File "pyvips\__init__.py", line 19, in <module>
ModuleNotFoundError: No module named '_libvips'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
  File "LS_GUI.py", line 40, in <module>
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "PyInstaller\loader\pyimod02_importers.py", line 450, in exec_module
  File "stitcher.py", line 13, in <module>
  File "<frozen importlib._bootstrap>", line 1176, in _find_and_load
  File "<frozen importlib._bootstrap>", line 1147, in _find_and_load_unlocked
  File "<frozen importlib._bootstrap>", line 690, in _load_unlocked
  File "PyInstaller\loader\pyimod02_importers.py", line 450, in exec_module
  File "pyvips\__init__.py", line 70, in <module>
  File "cffi\api.py", line 150, in dlopen
  File "cffi\api.py", line 834, in _make_ffi_library
  File "cffi\api.py", line 829, in _load_backend_lib
OSError: cannot load library 'libgobject-2.0-0.dll': error 0x7e.  Additionally, ctypes.util.find_library() did not manage to locate a library called 'libgobject-2.0-0.dll'

I also tried building it from source, but when running pip install -r requirements.txt, menpo failed to build its wheel, but I believe this is due to an issue with menpo and not Linear Stitch.

Collecting menpo==0.10.0 (from -r requirements.txt (line 6))
  Downloading menpo-0.10.0.tar.gz (1.6 MB)
     ━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━━ 1.6/1.6 MB 4.9 MB/s eta 0:00:00
  Installing build dependencies ... done
  Getting requirements to build wheel ... error
  error: subprocess-exited-with-error
  
  × Getting requirements to build wheel did not run successfully.
  │ exit code: 1
  ╰─> [31 lines of output]
      C:\Users\Procerand\AppData\Local\Temp\pip-install-65gxyv16\menpo_a6838d4e35394a36ad2268858a5b5869\versioneer.py:467: SyntaxWarning: invalid escape sequence '\s'
        LONG_VERSION_PY['git'] = '''
      Traceback (most recent call last):
        File "C:\Users\Procerand\Desktop\LinearStitch\venv\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 353, in <module>
          main()
        File "C:\Users\Procerand\Desktop\LinearStitch\venv\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 335, in main
          json_out['return_val'] = hook(**hook_input['kwargs'])
                                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\Procerand\Desktop\LinearStitch\venv\Lib\site-packages\pip\_vendor\pyproject_hooks\_in_process\_in_process.py", line 118, in get_requires_for_build_wheel
          return hook(config_settings)
                 ^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\Procerand\AppData\Local\Temp\pip-build-env-nan5ydpx\overlay\Lib\site-packages\setuptools\build_meta.py", line 331, in get_requires_for_build_wheel
          return self._get_build_requires(config_settings, requirements=[])
                 ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\Procerand\AppData\Local\Temp\pip-build-env-nan5ydpx\overlay\Lib\site-packages\setuptools\build_meta.py", line 301, in _get_build_requires
          self.run_setup()
        File "C:\Users\Procerand\AppData\Local\Temp\pip-build-env-nan5ydpx\overlay\Lib\site-packages\setuptools\build_meta.py", line 512, in run_setup
          super().run_setup(setup_script=setup_script)
        File "C:\Users\Procerand\AppData\Local\Temp\pip-build-env-nan5ydpx\overlay\Lib\site-packages\setuptools\build_meta.py", line 317, in run_setup
          exec(code, locals())
        File "<string>", line 18, in <module>
        File "C:\Users\Procerand\AppData\Local\Temp\pip-install-65gxyv16\menpo_a6838d4e35394a36ad2268858a5b5869\versioneer.py", line 1405, in get_version
          return get_versions()["version"]
                 ^^^^^^^^^^^^^^
        File "C:\Users\Procerand\AppData\Local\Temp\pip-install-65gxyv16\menpo_a6838d4e35394a36ad2268858a5b5869\versioneer.py", line 1339, in get_versions
          cfg = get_config_from_root(root)
                ^^^^^^^^^^^^^^^^^^^^^^^^^^
        File "C:\Users\Procerand\AppData\Local\Temp\pip-install-65gxyv16\menpo_a6838d4e35394a36ad2268858a5b5869\versioneer.py", line 399, in get_config_from_root
          parser = configparser.SafeConfigParser()
                   ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
      AttributeError: module 'configparser' has no attribute 'SafeConfigParser'. Did you mean: 'RawConfigParser'?
      [end of output]

[AnthonyvW]

It looks like pyvips (the library causing the error) cannot be downloaded via pip for windows and instead has to be manually downloaded from their website and included in the path.

[cmcfadden]

Yeah, the app tries to detect vips and disables rotation if it’s not found. I’ll take a look at why that’s triggering a crash instead.

[cmcfadden]

@AnthonyvW I just pushed a new commit which should prevent loading vips if it can't find it. I need to take another swing at packaging the vips dylib as part of the build process .. windows dylib loading is not something I'm super familiar with. I haven't tested this build on windows yet - when I get into the lab tomorrow I'll give it a shot.