Get compatible versions of the tools

android.nix

@@ -2,7 +2,7 @@
 let
   androidComposition = androidenv.composeAndroidPackages {
     toolsVersion = "26.1.1";
-    # platformToolsVersion = "30.0.5";
+    platformToolsVersion = "31.0.3";
     buildToolsVersions = [ buildToolsVersion ];
     includeEmulator = false;
     emulatorVersion = "30.3.4";

app/app/build.gradle

@@ -6,7 +6,7 @@ plugins {
 
 android {
     compileSdk 31
-    buildToolsVersion "30.0.3"
+    buildToolsVersion "31.0.0"
     ndkVersion "23.0.7123448"
     externalNativeBuild {
         cmake {

flake.nix

@@ -77,7 +77,7 @@
       #   The SDK directory is not writable (/nix/store/46214a16f22rd7q8vkrhsa907ra0405l-androidsdk/libexec/android-sdk)
 
       cmakeVersion = "3.10.2";
-      buildToolsVersion = "30.0.3";
+      buildToolsVersion = "31.0.0";
       # Check out pkgs/development/mobile/androidenv/repo.json for
       # nixpkgs-supported versions.
       ndkVersion = "23.0.7123448-rc1";