Merge pull request #4595 from talregev/TalR/bugfix_flutter_ububntu

.github/workflows/flutter-macos.yml

@@ -23,7 +23,7 @@ jobs:
       - name: Setup xcode
         uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: '12.2'          
+          xcode-version: '12.5.1'         
 
       - name: Setup flutter
         uses: subosito/flutter-action@v1

.github/workflows/flutter-ubuntu.yml

@@ -41,7 +41,9 @@ jobs:
 
       - name: Install linux dependencies
         if: matrix.type == 'linux'
-        run: sudo apt-get install -y clang cmake ninja-build pkg-config libgtk-3-dev
+        run: |
+          sudo apt update
+          sudo apt install -y clang cmake ninja-build pkg-config libgtk-3-dev
 
       - name: Build linux client
         if: matrix.type == 'linux'

.github/workflows/osx.yml

@@ -18,7 +18,8 @@ jobs:
     steps:
       - uses: maxim-lobanov/setup-xcode@v1
         with:
-          xcode-version: '12.2'
+          xcode-version: '12.5.1'
+
       - uses: actions/checkout@v2
 
       - name: Cache dependencies

samples/flutter/boinc/android/app/build.gradle

@@ -26,7 +26,7 @@ apply plugin: 'kotlin-android'
 apply from: "$flutterRoot/packages/flutter_tools/gradle/flutter.gradle"
 
 android {
-    compileSdkVersion 30
+    compileSdkVersion 31
 
     compileOptions {
         sourceCompatibility JavaVersion.VERSION_1_8