Unable to load workspace '._Runner.xcworkspace'. #29052
Description
My app works in Android and when I start it in my simulator on a Mac it works.
When I want to validate the app, the following error is shown:
xcodebuild: error: Unable to load workspace '._Runner.xcworkspace'.
Reason: Unknown.
Log file:
`Flutter crash report; please file at https://github.com/flutter/flutter/issues.
command
flutter build ios
exception
String: Exit code 74 from: /usr/bin/env xcrun xcodebuild -configuration Release -quiet -workspace ._Runner.xcworkspace -scheme Runner BUILD_DIR=/Users//Documents/Flutter//build/ios -sdk iphoneos SCRIPT_OUTPUT_STREAM_FILE=/var/folders/p7/kz6k2ys17gv3rh8qpgfrddyr0000gn/T/flutter_build_log_pipe.iybtHz/pipe_to_stdout -showBuildSettings
#0 _runWithLoggingSync (package:flutter_tools/src/base/process.dart:353:7)
#1 runCheckedSync (package:flutter_tools/src/base/process.dart:284:10)
#2 buildXcodeProject (package:flutter_tools/src/ios/mac.dart:505:69)
<asynchronous suspension>
#3 BuildIOSCommand.runCommand (package:flutter_tools/src/commands/build_ios.dart:79:43)
<asynchronous suspension>
#4 FlutterCommand.verifyThenRunCommand (package:flutter_tools/src/runner/flutter_command.dart:527:18)
#5 _asyncThenWrapperHelper.<anonymous closure> (dart:async/runtime/libasync_patch.dart:77:64)
#6 _rootRunUnary (dart:async/zone.dart:1132:38)
#7 _CustomZone.runUnary (dart:async/zone.dart:1029:19)
#8 _FutureListener.handleValue (dart:async/future_impl.dart:126:18)
#9 Future._propagateToListeners.handleValueCallback (dart:async/future_impl.dart:639:45)
#10 Future._propagateToListeners (dart:async/future_impl.dart:668:32)
#11 Future._complete (dart:async/future_impl.dart:473:7)
#12 _SyncCompleter.complete (dart:async/future_impl.dart:51:12)
#13 _AsyncAwaitCompleter.complete.<anonymous closure> (dart:async/runtime/libasync_patch.dart:33:20)
#14 _rootRun (dart:async/zone.dart:1124:13)
#15 _CustomZone.run (dart:async/zone.dart:1021:19)
#16 _CustomZone.bindCallback.<anonymous closure> (dart:async/zone.dart:947:23)
#17 _microtaskLoop (dart:async/schedule_microtask.dart:41:21)
#18 _startMicrotaskLoop (dart:async/schedule_microtask.dart:50:5)
#19 _runPendingImmediateCallback (dart:isolate/runtime/libisolate_patch.dart:115:13)
#20 _RawReceivePortImpl._handleMessage (dart:isolate/runtime/libisolate_patch.dart:172:5)
flutter doctor
�[32m[✓]�[39m Flutter (Channel dev, v1.1.6, on Mac OS X 10.13.6 17G4015, locale nl-BE)
�[32m•�[39m Flutter version 1.1.6 at /Users/*/Flutter/flutter
�[32m•�[39m Framework revision d8b57c2ab2 (9 weeks ago), 2019-01-07 09:42:35 -0800
�[32m•�[39m Engine revision 7112b72cc2
�[32m•�[39m Dart version 2.1.1 (build 2.1.1-dev.0.1 ec86471ccc)
�[31m[✗]�[39m Android toolchain - develop for Android devices
�[31m✗�[39m Unable to locate Android SDK.
Install Android Studio from:
https://developer.android.com/studio/index.html
On first launch it will assist you in installing the Android SDK
components.
(or visit https://flutter.io/setup/#android-setup for detailed
instructions).
If Android SDK has been installed to a custom location, set ANDROID_HOME
to that location.
You may also want to add it to your PATH environment variable.
�[32m[✓]�[39m iOS toolchain - develop for iOS devices (Xcode 10.1)
�[32m•�[39m Xcode at /Applications/Xcode.app/Contents/Developer
�[32m•�[39m Xcode 10.1, Build version 10B61
�[32m•�[39m ios-deploy 2.0.0
�[32m•�[39m CocoaPods version 1.6.1
�[33m[!]�[39m Android Studio (not installed)
�[32m•�[39m Android Studio not found; download from
https://developer.android.com/studio/index.html
(or visit https://flutter.io/setup/#android-setup for detailed
instructions).
�[33m[!]�[39m Connected device
�[33m!�[39m No devices available
�[33m!�[39m Doctor found issues in 3 categories.
`
What can I do about it?