Error Regarding undefined method `map' for nil:NilClass for Flutter App / CocoaPod Error
I'm having an error regarding my Flutter application. When I run the "flutter run" script in terminal, I'm getting the following error from Cocoapods: "Error output from CocoaPods: Searching for inspections failed: undefined method `map' for nil:NilClass" (as seen also by the attached picture). 
How do I go about solving this issue?
Solution
Are you using Apple M1? I had this issue as well and after some research I find that it might be something to do with Rosetta. You can refer to Running CocoaPods on Apple Silicon (M1).
I managed to solve this issue on my MacBook Air M1 by typing this in the terminal:
sudo arch -x86_64 gem install ffi
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