Ruby On Rails

Old rails project with gem install errors :/

At work I am going to work on an older rails project… Like many other Rails projects, this one can only run on older versions of ruby. Hence I install rbenv and tried my luck.

My luck failed though and I had some issues installing “thin” gem which is used with “mailcatcher” gem.

Eventually I found this post, which helped my Mac compile the thin gem file with native extensions:

Long story short:
install the gem separately with custom compiler flags and run bundler install again.

rbenv exec gem install thin -v 1.5.1 -- --with-cflags="-Wno-error=implicit-function-declaration"

At last i can run rbenv exec bundler install and the rest of the installation can begin.

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