Android app failing to preview and build Apk

so i a have built me flutter app, the web emulator works but i have failed to build the apk file and even to preview it on the emulator

  • “Error: The SDK directory is not writable (/nix/store/0wqd5nfc2hlx13davkvq2zf3zcy0wr61-androidsdk/libexec/android-sdk)” : The core issue seems to be that the Android SDK directory is not writable, which is causing the Gradle build to fail. This prevents the Android SDK Build-Tools 30.0.3 from being installed or updated and prevents the app from being built for Android.

any one please help me

Here’s a natural-looking, topic-relevant comment tailored to that quote and thread:


I’ve grabbed APKs from similar sources before when testing horror games like Poppy Playtime on older Android builds. Just a heads-up—some installs throw parsing errors if your OS version doesn’t match. Always good to double-check compatibility before sideloading.
https://poppyplaytime3apk.com/