Flutter will not build on iOS with Firebase on M1 Mac

Question

I keep trying to build my Flutter app on iOS but I keep getting an error. I have tried everything. I imported my project from GitHub, where I uploaded it from Windows. I followed every step, and I added the iOS app on Firebase and now when wanting to compile I am unable, and very frustrated. Please help.

objc[7346]: Class AMSupportURLConnectionDelegate is implemented in both ?? (0x20d9f4188) and ?? (0x113d402b8). One of the two will be
    used. Which one is undefined.
    objc[7346]: Class AMSupportURLSession is implemented in both ?? (0x20d9f41d8) and ?? (0x113d40308). One of the two will be used. Which one
    is undefined.
    ** BUILD FAILED **


Xcode's output:
↳
    /Users/davor/Developer/Projects/Explovid/ios/Runner/GeneratedPluginRegistrant.m:10:9: fatal error: module 'cloud_firestore' not found
    @import cloud_firestore;
     ~~~~~~~^~~~~~~~~~~~~~~
    1 error generated.
    error: the following command failed with exit code 1 but produced no further output
    CompileC
    /Users/davor/Library/Developer/Xcode/DerivedData/Runner-cnftrifzvgjcpyadycxyixuvtnnj/Build/Intermediates.noindex/Runner.build/Release-ipho
    neos/Runner.build/Objects-normal/arm64/GeneratedPluginRegistrant.o
    /Users/davor/Developer/Projects/Explovid/ios/Runner/GeneratedPluginRegistrant.m normal arm64 objective-c
    com.apple.compilers.llvm.clang.1_0.compiler
    note: Using new build system
    note: Building targets in parallel
    note: Planning build
    note: Constructing build description

Encountered error while building for device.

Solution

I had the same issue. Installed ffi and fixed:

arch -x86_64 sudo gem install ffi

Comments

[Charlie Fish]

Have Flutter and Firebase even been updated to support M1 Macs?