# Flutter app does not build on nix channel 25.05; and on channel 24.05 I dont know how to change flutter version

**URL:** <https://community.firebasestudio.dev/t/flutter-app-does-not-build-on-nix-channel-25-05-and-on-channel-24-05-i-dont-know-how-to-change-flutter-version/15275>\
**Category:** General\
**Tags:** troubleshooting\
**Created:** [June 17, 2025, 10:22am UTC](https://community.firebasestudio.dev/t/flutter-app-does-not-build-on-nix-channel-25-05-and-on-channel-24-05-i-dont-know-how-to-change-flutter-version/15275 "2025-06-17T10:22:41Z")\
**Posts on this page:** 1\
**Page:** 1

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**Author:** ![Szymon\_Kwiatek](https://sea2.discourse-cdn.com/flex002/user_avatar/community.firebasestudio.dev/szymon_kwiatek/32/8193_2.png) [@Szymon\_Kwiatek](https://community.firebasestudio.dev/u/Szymon_Kwiatek)\
**Post date:** [June 17, 2025, 10:22am UTC](https://community.firebasestudio.dev/t/flutter-app-does-not-build-on-nix-channel-25-05-and-on-channel-24-05-i-dont-know-how-to-change-flutter-version/15275/1 "2025-06-17T10:22:41Z")

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Hi guys, when I set nix channel to 25.05 and using pkgs like:  
packages = [  
pkgs.flutter327  
pkgs.jdk17  
pkgs.unzip  
];  
I’m having trouble building the app due to a Gradle file issue. I’ve tried clearing the gradlew, restarting, etc. - without success.  
Channel 24.05 works, but I can’t use the package with Flutter because it’s deprecated (getting error when trying to rebuild instance with flutter pkg). Is there an easy way to set up a stable/static Flutter version on VM with channel 24.05?