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Solving Error - xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

If you recently updated to macOS High Sierra and tried to run git commands you would face this error:

xcrun: error: invalid active developer path (/Library/Developer/CommandLineTools), missing xcrun at: /Library/Developer/CommandLineTools/usr/bin/xcrun

You can do the following to solve this problem:

xcode-select --install 

This will basically install/reinstall the xcode developer tools and your problem will be solved.



Installation of rvm erroring out in Catalina - Ruby 2.3.x - How to solve them?

If you had recently updated your macOS to Catalina and then faced problem with installing certain versions of ruby because of random error, pls try the following.
If you are getting the following error, while doing a rvm install
Error running '__rvm_make -j8',
Try the following:
Possiblility is that because of openssl 1.1. OpenSSL 1.1 is not compatible with the ruby compilation during the rvm install.
First install openssl 1.0 using macports
$ sudo port install openssl10
Now install (reinstall) the ruby using rvm with openssl pointing to the macports version
$ PKG_CONFIG_PATH=/opt/local/lib/openssl-1.0/pkgconfig rvm reinstall 2.3.7 --with-openssl-lib=/opt/local/lib/openssl-1.0 --with-openssl-include=/opt/local/include/openssl-1.0
Just ensure that the openssl from macports is installed into /opt/local/lib/openssl-1.0
Hope this helps.
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