Error: MacOS 10.15 error: MacOS 10.15 error: MacOS 10.15 error: MacOS 10.15 error: MacOS 10.15 error:

Installing byebug 111.3. with native extensions
Gem::Ext::BuildError: ERROR: Failed to build gem native extension.

current directory:
/private/var/folders/t4/qywk21kj3xzc57q97zhkx9980000gn/T/bundler20210406-33219-n8qsf0byebug-111.3./gems/byebug-111.3./ext/byebug
/System/Library/Frameworks/Ruby.framework/Versions/26./usr/bin/ruby -I
/System/Library/Frameworks/Ruby.framework/Versions/26./usr/lib/ruby/26.. 0 -r
./siteconf20210406-33219-1p5ofqz.rb extconf.rb
creating Makefile

current directory:
/private/var/folders/t4/qywk21kj3xzc57q97zhkx9980000gn/T/bundler20210406-33219-n8qsf0byebug-111.3./gems/byebug-111.3./ext/byebug
make "DESTDIR=" clean

current directory:
/private/var/folders/t4/qywk21kj3xzc57q97zhkx9980000gn/T/bundler20210406-33219-n8qsf0byebug-111.3./gems/byebug-111.3./ext/byebug
make "DESTDIR="
make: *** No rule to make target
` / Library/Developer/CommandLineTools/SDKs/MacOSX SDK/System/Library/Frameworks/Ruby/usr/framework/Versions / 2.6include/ ruby - server/universal - darwin19 / ruby/config. H ',
needed by `breakpoint.o'. Stop.

make failed, exit code 2

Gem files will remain installed in
/var/folders/t4/qywk21kj3xzc57q97zhkx9980000gn/T/bundler20210406-33219-n8qsf0byebug-111.3./gems/byebug-111.3.
for inspection.
Results logged to
/var/folders/t4/qywk21kj3xzc57q97zhkx9980000gn/T/bundler20210406-33219-n8qsf0byebug-111.3./extensions/universal-darwin-19/26.. 0/byebug-111.3./gem_make.out

An error occurred while installing byebug (111.3.), and Bundler cannot
continue.
Make sure that 'gem install byebug -v '11.1.3' --source 'https://rubygems.org/'
succeeds before bundling.
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Add the environment variable to ~/.bash_profile as follows:

SDKROOT = / Library/Developer/CommandLineTools/SDKs/MacOSX10.15 SDK /export SDKROOT
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If your system is not 10.15, try a similarly named folder in the same directory.

If you do not have a similar folder, you need to install the Xcode development tool using xcode-select –install first.

Source ~/.bash_profile After refreshing the environment variables, execute bundle install.