Try the new cross-platform PowerShell https://aka.ms/pscore6 PS F:\PRACA\WORKSPACE\DR20X\dr203-recorder-mobile-sw\dr203_recorder_app> flutter pub get Running "flutter pub get" in dr203_recorder_app... 3,3s The plugin `flutter_ble_lib` uses a deprecated version of the Android embedding. If you are plugin author, take a look at the docs for migrating the plugin to the V2 embedding: https://flutter.dev/go/android-plugin-migration. PS F:\PRACA\WORKSPACE\DR20X\dr203-recorder-mobile-sw\dr203_recorder_app> flutter clean Building with Flutter multidex support enabled. Warning: Mapping new ns http://schemas.android.com/repository/android/common/02 to old ns http://schemas.android.com/repository/android/common/01 Warning: Mapping new ns http://schemas.android.com/repository/android/generic/02 to old ns http://schemas.android.com/repository/android/generic/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/02 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/addon2/03 to old ns http://schemas.android.com/sdk/android/repo/addon2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/02 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/repository2/03 to old ns http://schemas.android.com/sdk/android/repo/repository2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/03 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01 Warning: Mapping new ns http://schemas.android.com/sdk/android/repo/sys-img2/02 to old ns http://schemas.android.com/sdk/android/repo/sys-img2/01 Warning: unexpected element (uri:"", local:"base-extension"). Expected elements are <{}codename>,<{}layoutlib>,<{}api-level> lib/bt_air_stack.dart:485:1: Error: Type 'Uint8List' not found. Uint8List encodeString(String string) { ^^^^^^^^^ lib/bt_air_stack.dart:498:18: Error: Type 'Uint8List' not found. final Function(Uint8List) dataEvent; ^^^^^^^^^ lib/main.dart:246:17: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:301:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:353:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:397:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:417:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:433:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:458:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:474:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:494:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:510:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:530:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:546:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:566:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:582:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:603:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:620:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:652:33: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:678:33: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:708:33: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:731:33: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:752:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:768:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:788:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:804:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:824:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:840:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:860:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:880:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:906:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:926:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:951:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:971:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:997:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:1017:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:1041:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:1061:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:1083:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^^^^^^^ /E:/TOOLS/flutter/flutter/packages/flutter/lib/src/material/text_button.dart:145:22: Context: Found this candidate, but the arguments don't match. static ButtonStyle styleFrom({ ^^^^^^^^^ lib/main.dart:1099:31: Error: No named parameter with the name 'foregroundColor'. foregroundColor: Colors.white ^^^^^^^^^ lib/bt_air_stack.dart:490:12: Error: Undefined name 'Uint8List'. return Uint8List.fromList([0]); ^^^^^^^^^ lib/bt_air_stack.dart:498:18: Error: 'Uint8List' isn't a type. final Function(Uint8List) dataEvent; ^^^^^^^^^ FAILURE: Build failed with an exception. * Where: Script 'E:\TOOLS\flutter\flutter\packages\flutter_tools\gradle\flutter.gradle' line: 1156 * What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'. > Process 'command 'E:\TOOLS\flutter\flutter\bin\flutter.bat'' finished with non-zero exit value 1 * Try: Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights. * Get more help at https://help.gradle.org BUILD FAILED in 36s Running Gradle task 'assembleDebug'... 37,9s Exception: Gradle task assembleDebug failed with exit code 1 PS F:\PRACA\WORKSPACE\DR20X\dr203-recorder-mobile-sw\dr203_recorder_app>