Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/amework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: note: did not find header 'config.h' in framework 'ruby' (loaded from '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks' )

Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/amework/Versions/2.6/usr/include/ruby-2.6.0/ruby/ruby.h:24:10: fatal error: 'ruby/config.h' file not found In file included from /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/amework/Versions/2.6/usr/include/ruby-2.6.0/ruby.h:33: L/Applications/Xcode.app/Contents/Developer/Platforms/atform/Developer/SDKs/MacOSX11.0.Internal.sdk/usr/local/lib -lruby.2.6 ' L/System/Library/Frameworks/amework/Versions/2.6/usr/lib -L. D_XOPEN_SOURCE -D_DARWIN_C_SOURCE -D_DARWIN_UNLIMITED_SELECT -D_REENTRANT -g -Os -pipe -DHAVE_GCC_ATOMIC_BUILTINS -DUSE_FFI_CLOSURE_ALLOC conftest.c -L. Running gem install eventmachine also returns an error, and the mkmf.log file showed an error with ruby: 'xcrun clang -o conftest -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/amework/Versions/2.6/usr/include/ruby-2.6.0/universal-darwin20 -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/amework/Versions/2.6/usr/include/ruby-2.6.0/ruby/backward -I/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk/System/Library/Frameworks/amework/Versions/2.6/usr/include/ruby-2.6.0 -I. Make sure that `gem install eventmachine -v '1.2.7' -source '' ` succeeds Run `bundle install ` to install missing gems.Īnd running ‘bundle install’ didn’t seem to solve it (even with sudo), it showed this error: An error occurred while installing eventmachine (1.2.7 ), and Bundler cannot continue. My website was setup locally using Jekyll and when I tried to run ‘ bundle exec jekyll serve’, I got this error: Could not find eventmachine-1.2.7 in any of the sources

I recently upgraded from MacOS Catalina to Big Sur beta and the first thing I noticed was that my dev environment was broken.

Gem install jekyll bundler brew