How can I resolve this? Fresh install of Catalina becomes a nightmare. Installed Anaconda Navigator. Did not install Python pkg from the website but using the Python versions shipped with MBP 2020. Here are some errors: Lastly I tried to install packages with pip3 install [package] but getting a long list of errors that can be seen here:     20 errors generated.     error: command 'xcrun' failed with exit status 1 /Library/Developer/CommandLineTools/Library/Frameworks/Python3.framework/Versions/3.8/include/python3.8/Python.h:25:   In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/stdio.h:64:   In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/_stdio.h:75:   In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/sys/_types/_va_list.h:31:   /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/usr/include/machine/types.h:37:2: error: architecture not supported   #error architecture not supported alexanderberg@Alexanders-MacBook-Pro ~ % which python /usr/bin/python alexanderberg@Alexanders-MacBook-Pro ~ % which python3 /usr/bin/python3 alexanderberg@Alexanders-MacBook-Pro ~ % which pip pip not found alexanderberg@Alexanders-MacBook-Pro ~ % which pip3 /usr/bin/pip3 alexanderberg@Alexanders-MacBook-Pro ~ % pip3 install --upgrade pip Collecting pip   Using cached https://files.pythonhosted.org/packages/4e/5f/528232275f6509b1fff703c9280e58951a81abe24640905de621c9f81839/pip-20.2.3-py2.py3-none-any.whl Installing collected packages: pip   Found existing installation: pip 19.2.3     Uninstalling pip-19.2.3: ERROR: Could not install packages due to an EnvironmentError: [Errno 13] Permission denied: 'RECORD' Consider using the `--user` option or check the permissions.