When I check the cocopods pod –version, this is what I am getting.

Ignoring ffi-1.16.3 because its extensions are not built. Try: gem pristine ffi –version 1.16.3
Ignoring debug-1.9.1 because its extensions are not built. Try: gem pristine debug –version 1.9.1
Ignoring racc-1.7.3 because its extensions are not built. Try: gem pristine racc –version 1.7.3
Ignoring rbs-3.4.0 because its extensions are not built. Try: gem pristine rbs –version 3.4.0
1.15.2

How can I fix this, so that I dont get any cocoapods error on run?