CODEWITHSUNDEEP
iosflutterxcode10
hvkale
hvkale

Reputation: 17787

Flutter build fails for iOS Xcode 10

I upgraded Flutter to latest. Following is the doctor output

Doctor summary (to see all details, run flutter doctor -v):
[✓] Flutter (Channel beta, v0.8.2, on Mac OS X 10.14 18A326h, locale en-US)
[✓] Android toolchain - develop for Android devices (Android SDK 28.0.1)
[✓] iOS toolchain - develop for iOS devices (Xcode 10.0)
[✓] Android Studio (version 3.1)
[✓] VS Code (version 1.27.1)

When I run the app with target to iOS simulator, I get this 

Launching lib/main.dart on iPhone XS Max in debug mode...
Starting Xcode build...
Xcode build done.
Failed to build iOS app
Error output from Xcode build:
↳
    ** BUILD FAILED **

Xcode's output:
↳
    error: Multiple commands produce '/Users/kalehv/dev/todo/todo-flutter/build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework':
    1) Target 'Runner' has copy command from '/Users/kalehv/dev/todo/todo-flutter/ios/Flutter/Flutter.framework' to '/Users/kalehv/dev/todo/todo-flutter/build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework'
    2) That command depends on command in Target 'Runner': script phase “[CP] Embed Pods Frameworks”
    warning: The use of Swift 3 @objc inference in Swift 4 mode is deprecated. Please address deprecated @objc inference warnings, test your code with “Use of deprecated Swift 3 @objc inference” logging enabled, and then disable inference by changing the "Swift 3 @objc Inference" build setting to "Default" for the "Runner" target. (in target 'Runner')
    warning: ignoring duplicated output file: '/Users/kalehv/dev/todo/todo-flutter/build/ios/Debug-iphonesimulator/Runner.app/Frameworks/Flutter.framework' (in target 'Runner')
    note: Using new build systemnote: Planning buildnote: Constructing build description
Could not build the application for the simulator.
Error launching application on iPhone XS Max.

Upvotes: 0

Views: 7294

Answers (3)

YahYa
YahYa

Reputation: 477

I fix this By uncommit platform target in the Podfile inside ios folder, So it will be 9. Then you must change the platform target from Xcode to 9 this very important. after that do this Open your Xcode and there is File upper-left next to Apple icon, then open Workspace Settings and change the build system to Legacy Build System.

then do this post link

Hit the clean button project in Xcode and run it.

I hope this will help you.

Upvotes: 0

Magnus
Magnus

Reputation: 18728

I had the same problem, but when I changed to Legacy Build System I got a ton of Apple Mach-O Linker Error's instead.

I finally narrowed the problem down to a setting in Runner.xcodeproj/project.pbxproj (which can be manipulated from XCode in the Runner -> Build settings tab).

I had somehow set 

Build active architecture only
           - Debug                   No
           - Profile                 Yes
           - Release                 Yes

Changing it to 

Build active architecture only
           - Debug                   Yes
           - Profile                 Yes
           - Release                 Yes

solved the errors.

Upvotes: 1

Daibaku
Daibaku

Reputation: 12566

I think this would help at least it worked for me url.

Open your Xcode and there is File upper-left next to Apple icon, then open Workspace Settings and change the build system to Legacy Build System.

Upvotes: 5

Related Questions