Error Regarding undefined method `map' for nil:NilClass for Flutter App / CocoaPod Error

Question

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 1

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

from here https://stackoverflow.com/a/65334677/13814270.

Solution 2

I was trying to run pod install command in ios folder. @boonyongyang solution is necessary but it seemed that I had 2 ffi's installed, so I had to also run it with arch -x86_64 command

sudo arch -x86_64 gem install ffi
# go to ios folder then run
arch -x86_64 pod install

Comments

[Haseeb Burki]

Is there any diff b/w running this command and changing the terminal option to "open with rosetta" fix?

[Dohan Smit]

This helped a lot..Thank you

[Sharjeel Ali]

This is happening when I started flutter development in MacBook M1. On my old MacBook, it was normal and working fine. Does anyone know the reason?

[Royalty]

Thanks helped me too :)

[famfamfam]

hi, please help my problem : stackoverflow.com/questions/71866620/…

[Lalit Fauzdar]

I've installed this multiple times, not working.

[efesahin]

works for apple MacBook Pro m1 <3

[Daniel]

works for Apple Macbook Air M1 aswell. I had to do that everytime I installed a new Firebase plugin.

[Felix Mittermeier]

Good answer but it might be good to mention that you have to run all suggested fixes from flutter also with this new prefix. For example: "pod update Firebase/Messaging" -> "arch -x86_64 pod update Firebase/Messaging"