Bug report #18238

Python error: couldn't load plugin 'processing' (python error)

Added by rmercer - over 2 years ago. Updated over 2 years ago.

Status:Closed
Priority:Normal
Assignee:Victor Olaya
Category:Processing/Core
Affected QGIS version:3.0.0 Regression?:No
Operating System:Windows 7 Pro Easy fix?:No
Pull Request or Patch supplied:No Resolution:fixed/implemented
Crashes QGIS or corrupts data:No Copied to github as #:26129

Description

Installed QGIS 3.0 today. On startup receiving this error

Python error: Couldn't load plugin'processing' See message log (Python Error) for more details.

Python error log:
2018-02-26T16:08:39 WARNING Traceback (most recent call last):
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 311, in loadPlugin
import(packageName)
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\
_init__.py", line 29, in <module>
from processing.tools.general import * # NOQA
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\tools\general.py", line 39, in <module>
from processing.core.Processing import Processing
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\core\Processing.py", line 57, in <module>
from processing.algs.qgis.QgisAlgorithmProvider import QgisAlgorithmProvider # NOQA
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\algs\qgis\QgisAlgorithmProvider.py", line 41, in <module>
from .QgisAlgorithm import QgisAlgorithm
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\algs\qgis\QgisAlgorithm.py", line 30, in <module>
from processing.algs.help import shortHelp
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/OSGEO4~1/apps/qgis/./python/plugins\processing\algs\help\
_init__.py", line 28, in <module>
import yaml
File "C:/OSGEO4~1/apps/qgis/./python\qgis\utils.py", line 664, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
ImportError: bad magic number in 'yaml': b'\x03\xf3\r\n'

2018-02-26_16-22-48_crop.png - QGIS 3.0 Screenshot - Vector menu not opening when clicked. (161 KB) rmercer -, 2018-02-27 01:27 AM

History

#1 Updated by rmercer - over 2 years ago

I am not sure if this is related, but I think this failure to load the plugin is affecting the Vector menu. It does not open when it is clicked. Please see attached screenshot. If you think this is something different, please let me know and I'll submit a new specific bug.

Thanks,

#2 Updated by Nyall Dawson over 2 years ago

  • Status changed from Open to Feedback

Try removing your existing osgeo4w install folder and then re-installing. You have some leftover files from an earlier build in there which is causing this issue.

#3 Updated by rmercer - over 2 years ago

That did indeed solve the problem. It would be helpful to have a note about that on the download/install page, as I don't recall this being necessary in other version upgrades.

Thanks much!

#4 Updated by Alexander Bruy over 2 years ago

  • Resolution set to fixed/implemented
  • Status changed from Feedback to Closed

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