frontend_server_dart: No such file

[geraldeersteling]

Steps to Reproduce

I followed the install directions in the docs but am unable to build and run the app to my iOS device using the run command.

The command fails because it can't find the file frontend_server.dart.snapshot, which is right because the location it's searching if...weird. Without the file:// prefix the path would've been correct.

I don't know how to fix this one as I've updated my $PATH and Flutter itself can be found.

Logs

The output of running flutter run --verbose is way too big.
I'm unable to post all of it here, but I'll post the non-verbose one

Launching lib/main.dart on TOO iPhone 7+ in debug mode...
Automatically signing iOS for device deployment using specified development team in Xcode project: TEAMID
Starting Xcode build...
 ├─Assembling Flutter resources...                    1.6s

Xcode build done.                                            3.3s
Failed to build iOS app
Error output from Xcode build:
↳
    2019-02-12 11:48:10.087 xcodebuild[23121:3045622]  DTDeviceKit: deviceType from 4fe2906df031911d06bc8f15f9e7e435fca97e42 was NULL
    2019-02-12 11:48:10.087 xcodebuild[23121:3045622]  DTDeviceKit: deviceType from 4fe2906df031911d06bc8f15f9e7e435fca97e42 was NULL
    2019-02-12 11:48:10.090 xcodebuild[23121:3045622]  iPhoneSupport: 📱<DVTiOSDevice (0x7fa892b41c30), GeePhone X, iPhone, 12.1.4
    (16D57), 6eb37e68bb74fea7d733019283af5c65eedb686b> unable to mount DeveloperDiskImage (Error Domain=com.apple.dtdevicekit
    Code=601 "Could not find platform" UserInfo={NSLocalizedDescription=Could not find platform})
    2019-02-12 11:48:10.188 xcodebuild[23121:3045618] [MT] DTDeviceKit: deviceType from 4fe2906df031911d06bc8f15f9e7e435fca97e42 was
    NULL
    2019-02-12 11:48:10.197 xcodebuild[23121:3045618] [MT] DTDeviceKit: deviceType from 4fe2906df031911d06bc8f15f9e7e435fca97e42 was
    NULL
    2019-02-12 11:48:10.207 xcodebuild[23121:3045618] [MT] DTDeviceKit: deviceType from 4fe2906df031911d06bc8f15f9e7e435fca97e42 was
    NULL
    ** BUILD FAILED **


Xcode's output:
↳
    === BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===
    Error: Error when reading
    'file:///Users/owner/Documents/Flutter/flutter/bin/cache/artifacts/engine/darwin-x64/frontend_server.dart.snapshot':
    No such file or directory

    Compiler failed on /Users/owner/git/flutter-playground/lib/main.dart
    Failed to package /Users/owner/git/flutter-playground.

Could not build the precompiled application for the device.

Error launching application on TOO iPhone 7+.
 3.1s

[✓] Flutter (Channel stable, v1.0.0, on Mac OS X 10.14 18A391, locale en-NL)
    • Flutter version 1.0.0 at /Users/owner/Documents/Flutter/flutter
    • Framework revision 5391447fae (2 months ago), 2018-11-29 19:41:26 -0800
    • Engine revision 7375a0f414
    • Dart version 2.1.0 (build 2.1.0-dev.9.4 f9ebf21297)

[✓] Android toolchain - develop for Android devices (Android SDK 28.0.3)
    • Android SDK at /Users/owner/Library/Android/sdk
    • Android NDK location not configured (optional; useful for native profiling support)
    • Platform android-28, build-tools 28.0.3
    • Java binary at: /Applications/Android Studio.app/Contents/jre/jdk/Contents/Home/bin/java
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)
    • All Android licenses accepted.

[✓] iOS toolchain - develop for iOS devices (Xcode 10.1)
    • Xcode at /Applications/Xcode.app/Contents/Developer
    • Xcode 10.1, Build version 10B61
    • ios-deploy 1.9.4
    • CocoaPods version 1.6.0

[✓] Android Studio (version 3.3)
    • Android Studio at /Applications/Android Studio.app/Contents
    ✗ Flutter plugin not installed; this adds Flutter specific functionality.
    ✗ Dart plugin not installed; this adds Dart specific functionality.
    • Java version OpenJDK Runtime Environment (build 1.8.0_152-release-1248-b01)

[✓] Connected device (1 available)
    • TOO iPhone 7+ • DEVICEID • ios • iOS 10.3.3

• No issues found!

[zoechi]

Without the file:// prefix the path would've been correct.

This is just a file URI which will then be converted to a file path.

Duplicate of #22035

[geraldeersteling]

😕 well after looking at the issue you mentioned as duplicate I changed the deployment target from 8.0 to 12.1, which removes the error from the build's output.
However the second error—about not finding the file persists.

[zoechi]

Please try deleting /Users/owner/Documents/Flutter/flutter/bin/cache and run flutter doctor then try again.

[geraldeersteling]

This works, many thanks @zoechi! 🎉
Maybe this is a tip for the docs (deleting the cache if this fails)?

[zoechi]

@geraldeersteling haven't seen this issue before, but we will consider it if it is encountered more often.

[postmasters]

I've just got hit by this Could not find platform error too. Removing cache directory did NOT solve it. Building and deploying from Xcode, however, was fine.

[fabclovinn]

I have this issue everytime I try to run flutter. Like if I sepnd 10 minutes without working with flutter, when I try to run flutter again, I get this error so I have to appli what @zoechi said. But I have to do this like 10 times per day, it's very frustrating..

[github-actions]

This thread has been automatically locked since there has not been any recent activity after it was closed. If you are still experiencing a similar issue, please open a new bug, including the output of flutter doctor -v and a minimal reproduction of the issue.