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.

score 62 · Answer 1 · edited Nov 28 '21 at 05:20

62

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

edited Nov 28 '21 at 05:20

James Bucanek

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answered Jun 15 '20 at 03:54

Chris

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3

Thank you this solved my issue. – Ollie Nov 16 '21 at 20:36
Solved my issue also. I was facing same error after upgrading to XCode 13. Thanks a lot. You saved my day. – Nikesh Nayak Dec 02 '21 at 12:40
Working fine! thanks – Allansrc Jan 17 '22 at 15:23
after a whole day debugging this solved my issue. but why? what the heck is going on? why is iOS dx this ugly? ugh... – venir Jan 28 '23 at 22:52
After spending few days, Only your solution worked. – Hammad Pervez Apr 13 '23 at 22:37
the same thing with release – Abdullah Alamodi Aug 18 '23 at 22:32

score 55 · Answer 2 · edited Jul 31 '21 at 08:14

55

use this settings:

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

enter image description here

edited Jul 31 '21 at 08:14

Majid Hajibaba

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answered Jul 30 '21 at 14:27

Yahya

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It did not work for me. – shuster Jan 31 '22 at 13:29

score 47 · Accepted Answer · edited Mar 27 '21 at 21:41

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).

I am not quite clear, does this mean that mean we just want to ensure that a configuration file is set for each target? https://a.cl.ly/YEuk4Qjq — satchel, Jul 14 '22 at 19:40

score 22 · Answer 4 · answered Feb 25 '21 at 13:56

22

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

answered Feb 25 '21 at 13:56

Sanju Bhatt

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nice one, thanks! – Nazarudin Dec 13 '21 at 15:29
The image helped, thanks – Charden Daxicen Jun 27 '23 at 19:24

score 12 · Answer 5 · answered Apr 19 '21 at 04:22

12

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

answered Apr 19 '21 at 04:22

Al Walid Ashik

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The other and simpler solution was to add this line in the file 'Runner/Flutter/Debug.xcconfig': #include "Generated.xcconfig" – elgsylvain85 Aug 17 '21 at 04:38
i didn't know that :( – Al Walid Ashik Aug 17 '21 at 06:29
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! – James Perih Nov 09 '21 at 03:46
1

For some reason my `FLUTTER_TARGET` was defined as a very wrong value. Thank you for including it in your screenshot. – Ross Llewallyn Jul 13 '22 at 02:59

score 8 · Answer 6 · answered Sep 07 '19 at 08:41

8

Setting runner to Generated in project->Info Configurations seemed to fix it. I can build in xcode now.

answered Sep 07 '19 at 08:41

pluto puppy

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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. – Hanny Jul 12 '20 at 17:27
That's the fix for me. I set project runner to generated and target runner to None. – Abbas Jul 09 '21 at 05:35

score 2 · Answer 7 · answered May 10 '20 at 10:39

2

The simple solution was to call

flutter clean

flutter run

and then run the app from Xcode.

answered May 10 '20 at 10:39

Sohaib Aslam

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score 1 · Answer 8 · answered Nov 12 '20 at 11:50

If changing the configuration as suggested above doesn't fix things

In your Build Phase scripts / Xcode Project change

$FLUTTER_ROOT/packages/flutter_tools/...

to

${FLUTTER_ROOT}/packages/flutter_tools/...

Did the trick for me after the upgrade to the new version of flutter broke the Build.

score 1 · Answer 9 · answered Jun 24 '21 at 18:22

1

i have this intermittently while setting up flavors havent got an answer on fixing it but the best explanation of the trail is here https://github.com/flutter/flutter/issues/49495

answered Jun 24 '21 at 18:22

martinseal1987

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score 1 · Answer 10 · edited Jan 26 '22 at 11:12

1

What helped me was going under PROJECT -> Info -> Configurations

setting the following:

Debug:
    Runner - None
    fRunner - Debug

Release:
    Runner - None
    fRunner - Release 

Profile:
    Runner - None
    fRunner - Generated

edited Jan 26 '22 at 11:12

Marcel Hofgesang

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answered Jan 24 '22 at 18:25

user18020423

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score 1 · Answer 11 · answered Apr 20 '22 at 20:13

What worked for me was:

Removing my project ios folder.

(Save it elsewhere, as you will probably want to keep your Info.plist file and Podfile.)

Run flutter create . to build a new ios folder.
Replace new Info.plist and Podfile with originals.

(If you have firebase in your app as I did you likely will have to go into xcode and right-click on runner, add files to runner, and add your GoogleService-Info.plist)

flutter clean , flutter run

score 0 · Answer 12 · answered Mar 24 '22 at 19:17

I tried all solutions but no one worked :( , I think there is a something missing in the flutter folder so the fast simple solution is ;)

delete flutter folder
Download the stable branch straight from GitHub instead of using an archive (url: https://docs.flutter.dev/get-started/install/macos)

git clone https://github.com/flutter/flutter.git -b stable

Verify that the flutter/bin directory is in your PATH by running echo $PATH
flutter upgrade flutter config enable-ios flutter config enable-android flutter doctor --android-licenses flutter doctor -v
cd path/your_project_name

flutter run ios -t lib/main.dart

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

12 Answers12

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