after releasing apk from fluttter google sign in doesn't work

Question

the app in debug mode was working find and everything is good after releasing apk google sign in doesn't work i tried all the possible soultions i checked for the sha1 key and all is good in and added everything in the gradle nothing is missing but still give me error

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and when i use it in debug it works again like flutter run but if i run fluter install and use the installed apk it doesn't work and it gives this error

Answer 1

I had similar problem, in my case with firebase token, this post helped. MissingPluginException for quick_actions plugin in release mode

Quote from the accepted answer:

As of now to remove this issue from the release mode I added shrinkResources false in the app level build.grade file of android folder.