xcode_backend.sh: no such file or directory. Do I need to create this file?

Question

My Flutter Project won't run on the ios simulator and is throwing this error:

Launching lib/main.dart on iPhone Xʀ in debug mode...

Running Xcode build...

Xcode build done. 7.6s

Failed to build iOS app

Error output from Xcode build:

↳

** BUILD FAILED **

Xcode's output:

↳

=== BUILD TARGET Runner OF PROJECT Runner WITH CONFIGURATION Debug ===

/bin/sh: /Users/pinercode/AndroidStudioProjects/bmi-calculator-flutter/packages/flutter_tools/bin/xcode_backend.sh: No such file or directory

Could not build the application for the simulator.

Error launching application on iPhone Xʀ.

The xcode error was also as follows:

/bin/sh: /Users/pinercode/AndroidStudioProjects/bmi-calculator-flutter/packages/flutter_tools/bin/xcode_backend.sh: No such file or directory

I've already tried running flutter doctor and there were no errors. I also tried re-rooting my xcode 'FLUTTER_ROOT' and 'FLUTTER_APPLICATION_PATH' in build settings, which did not work.

Solution 1

Basically what happens is that one of the project's 'Build Phases' is running a script:

/bin/sh "$FLUTTER_ROOT/packages/flutter_tools/bin/xcode_backend.sh" build

Now in order to find xcode_backend.sh the FLUTTER_ROOT variable needs to be defined. It is defined in a file called Flutter/Generated.xcconfig, which is generated when you run flutter pub get or flutter build.

The build configuration files Debug.xcconfig and Release.xcconfig (in the same Flutter folder) include Generated.xcconfig. Now the only thing left is to ensure that for each of the project configurations these build configuration files are properly set (in XCode under Project > Info > Configuration).

Solution 2

after a lot of messing around, I set these two settings and the build ran on to my physical device.

• Goto Xcode,

• click on Runner

• select Project (top one)

• go to Info tab

• change configurations for debug

• top Runner (green icon) to Generated

• Bottom Runner (red circles) Pods-Runner-debug

Solution 3

use this settings:

1. Open Xcode - Click on Runner(Top one)
2. Select the Runner from "PROJECT" Not from "TARGETS"
3. Select configuration
4. And update all the modes as this photo

Solution 4

Open Xcode
Click on Runner(Top one)
Select the Runner from "PROJECT" Not from "TARGETS"
Select configuration
And update all the modes for ex: In debug select "debug" configuration set

Solution 5

By Setting FLUTTER_ROOT as the Flutter sdk path solved this issue for me.

View more solutions

Comments

[Hanny]

This fixed the problem and it build successfully. However, I had to update my Xcode version to the latest to support the latest version on my iPhone.

[Abbas]

That's the fix for me. I set project runner to generated and target runner to None.

[elgsylvain85]

The other and simpler solution was to add this line in the file 'Runner/Flutter/Debug.xcconfig': #include "Generated.xcconfig"

[Al Walid Ashik]

i didn't know that :(

[James Perih]

I had changed my flutter path (to support different versions of dart), and this was set to the non-existent path. Set it right, and works great!

[Ollie]

Thank you this solved my issue.

[Nikesh Nayak]

Solved my issue also. I was facing same error after upgrading to XCode 13. Thanks a lot. You saved my day.

[Nazarudin]

nice one, thanks!

[Allansrc]

Working fine! thanks

[Allansrc]

nice! thank you

[shuster]

It did not work for me.