ERROR while checking after changing tensorflow-gpu 2.3.0 to 2.2.0

[huang-hz]

• pip version:20.2.3
• Python version:3.7
• Operating system:win10

ERROR: Error while checking for conflicts. Please file an issue on pip's issue tracker: https://github.com/pypa/pip/issues/new
Traceback (most recent call last):
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init_.py", line 3021, in _dep_map
return self._dep_map
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 2815, in getattr
raise AttributeError(attr)
AttributeError: _DistInfoDistribution__dep_map

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init_.py", line 3012, in _parsed_pkg_info
return self.pkg_info
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 2815, in getattr
raise AttributeError(attr)
AttributeError: _pkg_info

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_internal\commands\install.py", line 520, in determine_conflicts
return check_install_conflicts(to_install)
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_internal\operations\check.py", line 108, in check_install_conflicts
package_set, _ = create_package_set_from_installed()
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_internal\operations\check.py", line 50, in create_package_set_from_installed
package_set[name] = PackageDetails(dist.version, dist.requires())
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 2736, in requires
dm = self.dep_map
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 3023, in _dep_map
self.__dep_map = self.compute_dependencies()
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 3032, in _compute_dependencies
for req in self.parsed_pkg_info.get_all('Requires-Dist') or []:
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 3014, in parsed_pkg_info
metadata = self.get_metadata(self.PKG_INFO)
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 1420, in get_metadata
value = self.get(path)
File "B:\Anaconda3\envs\tf2\lib\site-packages\pip_vendor\pkg_resources_init.py", line 1616, in _get
with open(path, 'rb') as stream:
FileNotFoundError: [Errno 2] No such file or directory: 'b:\anaconda3\envs\tf2\lib\site-packages\tensorflow_estimator-2.3.0.dist-info\METADATA'

[uranusjr]

#8676