What is the problem?
unable to install any plugins
What did you already try to solve it?
Fresh install of Windows and python 2.7.
Complete Logs
Installing plugin "DisplayZ" from https://github.com/foosel/OctoPrint-DisplayZ/archive/master.zip...
c:\octoprint\venv\scripts\python.exe -m pip --disable-pip-version-check install 'file:///c:/users/octopr~1/appdata/local/temp/tmp4echxh/octoprint-displayz-master.zip' --no-cache-dir
ERROR: Invalid requirement: "'file:///c:/users/octopr~1/appdata/local/temp/tmp4echxh/octoprint-displayz-master.zip'"
Error!
Could not parse output from pip, see plugin_pluginmanager_console.log for generated output
2020-09-05 22:12:37,417 c:\octoprint\venv\scripts\python.exe -m pip --disable-pip-version-check install 'file:///c:/users/octopr~1/appdata/local/temp/tmpkk0d7t/octoprint-displayz-master.zip' --no-cache-dir
2020-09-05 22:12:41,938 ! ERROR: Invalid requirement: "'file:///c:/users/octopr~1/appdata/local/temp/tmpkk0d7t/octoprint-displayz-master.zip'"
2020-09-05 22:13:04,306 c:\octoprint\venv\scripts\python.exe -m pip --disable-pip-version-check install 'file:///c:/users/octopr~1/appdata/local/temp/tmpzkwdh3/octoprint-fullscreen-master.zip' --no-cache-dir
2020-09-05 22:13:05,941 ! ERROR: Invalid requirement: "'file:///c:/users/octopr~1/appdata/local/temp/tmpzkwdh3/octoprint-fullscreen-master.zip'"
2020-09-05 22:55:35,960 c:\octoprint\venv\scripts\python.exe -m pip --disable-pip-version-check install 'file:///c:/users/octopr~1/appdata/local/temp/tmp8opios/octoprint-displayz-master.zip' --no-cache-dir
2020-09-05 22:55:37,571 ! ERROR: Invalid requirement: "'file:///c:/users/octopr~1/appdata/local/temp/tmp8opios/octoprint-displayz-master.zip'"
2020-09-05 23:45:34,456 c:\octoprint\venv\scripts\python.exe -m pip --disable-pip-version-check install 'file:///c:/users/octopr~1/appdata/local/temp/tmp4echxh/octoprint-displayz-master.zip' --no-cache-dir
2020-09-05 23:45:35,970 ! ERROR: Invalid requirement: "'file:///c:/users/octopr~1/appdata/local/temp/tmp4echxh/octoprint-displayz-master.zip'"
Additional information about your setup
Ocoprint Version 1.4.2, Python 2.7, Win10, Ender 3, Chrome