Flutter build failed 'UserAgent.h' file not found

Question

Project cannot build or debug with firebase_crashlytics. In my mac I\'ve updated to Flutter latest but the machine we are deploying the app have lower version (Flutter 1.9.1 hot

Answer 1

I was almost there, I think even if I clean the flutter and pod install will not clear everything. I just had to do below steps:

• flutter clean
• Delete Podfile.lock
• cd ios
• pod deintegrate // or you can do **cd ios/pod deintegrate** without above step
• pod install

If this still didnt work. Please close .xcworkspace and podfile.lock then do last two step again and open newly generated .xcworkspace and Product -> build.

If not yet fixed please add a comment below (I have dealt lot of these problems).

Check here are created issues for this: issue 1 with firestore and issue 2 with crashlytics.