Authentication Error

[udithagis]

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

TypeError: get_authorization_url() missing 1 required positional argument: 'code_challenge'
Traceback (most recent call last):
File "C:\Users\udith\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\ee\data.py", line 230, in get_persistent_credentials
tokens = json.load(open(oauth.get_credentials_path()))
FileNotFoundError: [Errno 2] No such file or directory: 'C:\Users\udith/.config/earthengine/credentials'

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin\ee_auth.py", line 19, in init
ee.Initialize()
File "C:\Users\udith\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\ee_init_.py", line 114, in Initialize
credentials = data.get_persistent_credentials()
File "C:\Users\udith\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows\ee\data.py", line 241, in get_persistent_credentials
'Please authorize access to your Earth Engine account by '
ee.ee_exception.EEException: Please authorize access to your Earth Engine account by running

earthengine authenticate

in your command line, and then retry.

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:/PROGRA1/QGIS31.14/apps/qgis/./python\qgis\utils.py", line 334, in startPlugin
plugins[packageName] = package.classFactory(iface)
File "C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin_init.py", line 25, in classFactory
from .ee_plugin import GoogleEarthEnginePlugin
File "C:/PROGRA1/QGIS31.14/apps/qgis/./python\qgis\utils.py", line 743, in _import
mod = _builtin_import(name, globals, locals, fromlist, level)
File "C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin\ee_plugin.py", line 26, in
ee_plugin.ee_auth.init()
File "C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin\ee_auth.py", line 21, in init
authenticate()
File "C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins\ee_plugin\ee_auth.py", line 32, in authenticate
auth_url = ee.oauth.get_authorization_url()
TypeError: get_authorization_url() missing 1 required positional argument: 'code_challenge'

Python version: 3.7.0 (v3.7.0:1bf9cc5093, Jun 27 2018, 04:59:51) [MSC v.1914 64 bit (AMD64)]
QGIS version: 3.14.0-Pi Pi, 9f7028fd23

Python Path:
C:/PROGRA1/QGIS31.14/apps/qgis/./python
C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python
C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python/plugins
C:/PROGRA1/QGIS31.14/apps/qgis/./python/plugins
C:\PROGRA1\QGIS31.14\apps\Python37
C:\PROGRA1\QGIS31.14\apps\Python37\Scripts
C:\Program Files\QGIS 3.14\bin\python37.zip
C:\PROGRA1\QGIS31.14\apps\Python37\DLLs
C:\PROGRA1\QGIS31.14\apps\Python37\lib
C:\Program Files\QGIS 3.14\bin
C:\PROGRA1\QGIS31.14\apps\Python37\lib\site-packages
C:\PROGRA1\QGIS31.14\apps\Python37\lib\site-packages\win32
C:\PROGRA1\QGIS31.14\apps\Python37\lib\site-packages\win32\lib
C:\PROGRA1\QGIS31.14\apps\Python37\lib\site-packages\Pythonwin
C:/Users/udith/AppData/Roaming/QGIS/QGIS3\profiles\default/python
C:\Users\udith\AppData\Roaming\QGIS\QGIS3\profiles\default\python\plugins\ee_plugin\extlibs_windows

[spatialthoughts]

I had the same issue with QGIS 3.14 and fixed by running earthengine authenticate. See https://github.com/gee-community/qgis-earthengine-plugin#faq