Error during installation: 'google-api-core' distribution not found

During installation of the plugin i get the following error:

Couldn't load plugin 'ee_plugin' due to an error when calling its classFactory() method 

pkg_resources.DistributionNotFound: The 'google-api-core' distribution was not found and is required by the application 
Traceback (most recent call last):
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 334, in _startPlugin
    plugins[packageName] = package.classFactory(iface)
  File "C:/Users/XXX/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin\__init__.py", line 25, in classFactory
    from .ee_plugin import GoogleEarthEnginePlugin
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 744, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:/Users/XXX/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin\ee_plugin.py", line 22, in 
    import ee
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 744, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:\Users\XXX\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\ee\__init__.py", line 17, in 
    from . import batch
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 744, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:\Users\XXX\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\ee\batch.py", line 15, in 
    from . import _cloud_api_utils
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 744, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:\Users\XXX\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\ee\_cloud_api_utils.py", line 22, in 
    from googleapiclient import discovery
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 744, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:\Users\XXX\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\googleapiclient\discovery.py", line 49, in 
    import google.api_core.client_options
  File "E:/Programs/OSGeo4Win/apps/qgis-ltr/./python\qgis\utils.py", line 744, in _import
    mod = _builtin_import(name, globals, locals, fromlist, level)
  File "C:\Users\XXX\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\google\api_core\__init__.py", line 23, in 
    __version__ = get_distribution("google-api-core").version
  File "E:\Programs\OSGeo4Win\apps\Python37\lib\site-packages\pkg_resources\__init__.py", line 482, in get_distribution
    dist = get_provider(dist)
  File "E:\Programs\OSGeo4Win\apps\Python37\lib\site-packages\pkg_resources\__init__.py", line 358, in get_provider
    return working_set.find(moduleOrReq) or require(str(moduleOrReq))[0]
  File "E:\Programs\OSGeo4Win\apps\Python37\lib\site-packages\pkg_resources\__init__.py", line 901, in require
    needed = self.resolve(parse_requirements(requirements))
  File "E:\Programs\OSGeo4Win\apps\Python37\lib\site-packages\pkg_resources\__init__.py", line 787, in resolve
    raise DistributionNotFound(req, requirers)
pkg_resources.DistributionNotFound: The 'google-api-core' distribution was not found and is required by the application


Python version: 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)] 
QGIS version: 3.10.6-A Coruña A Coruña, ec80021f49

(updated also to 3.10.7 - same error)

when i try fix that with

python -m pip install "google-core-api"

in a qgis python console, i feel like i am getting into an installation mess i would rather try to avoid. The plugin loader is then complaining about more stuff (“google-api-python-client not found”, “ee.exception not found in ee”…).

i didnt found any prerequisite documention for the installation and i feel like there is something wrong if its not a transient error.

[cristhian0224]

@XavierCLL Thanks for taking the time to review it, I have installed it and it works perfectly, I am very grateful, good day.

[XavierCLL]

Ah, ok I got it.

(i would need to remove the file %USERDIR%\.config\earthengine\credentials to check this, right?)

Yes