could you teach me what part should i fixed ? i typed all with your code

[useruniversity]

Project : Flutter youtube player (your channel : https://www.youtube.com/watch?v=feQhHStBVLE) I don't know coding , but like. follow your channel and want to make as U. i typed all of coding with your screen. but it can't work. please teach me what part should i fixed ?

Launching lib/main.dart on sdk gphone x86 arm in debug mode... Running Gradle task 'assembleDebug'... Invalid depfile: /Users/suli/nopa_youtube/.dart_tool/flutter_build/387d647edd2b2a3b7bc8d61a586e7d0a/kernel_snapshot.d Invalid depfile: /Users/suli/nopa_youtube/.dart_tool/flutter_build/387d647edd2b2a3b7bc8d61a586e7d0a/kernel_snapshot.d lib/services/api_service.dart:2:8: Error: Not found: 'dart:html' import 'dart:html'; ^ Unhandled exception: FileSystemException(uri=org-dartlang-untranslatable-uri:dart%3Ahtml; message=StandardFileSystem only supports file: and data: URIs)

0 StandardFileSystem.entityForUri (package:front_end/src/api_prototype/standard_file_system.dart:33:7)

1 asFileUri (package:vm/kernel_front_end.dart:657:37)

2 writeDepfile (package:vm/kernel_front_end.dart:825:21)

#3 FrontendCompiler.compile (package:frontend_server/frontend_server.dart:572:15) #4 _FlutterFrontendCompiler.compile (package:flutter_frontend_server/server.dart:43:22) #5 starter (package:flutter_frontend_server/server.dart:182:27) #6 main (file:///opt/s/w/ir/cache/builder/src/flutter/flutter_frontend_server/bin/starter.dart:9:30) #7 _startIsolate. (dart:isolate-patch/isolate_patch.dart:299:32) #8 _RawReceivePortImpl._handleMessage (dart:isolate-patch/isolate_patch.dart:168:12) FAILURE: Build failed with an exception. * Where: Script '/Users/suli/developer/flutter/packages/flutter_tools/gradle/flutter.gradle' line: 904 * What went wrong: Execution failed for task ':app:compileFlutterBuildDebug'. > Process 'command '/Users/suli/developer/flutter/bin/flutter'' 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 37s Exception: Gradle task assembleDebug failed with exit code 1

[sonu25r2e5]

so clean flutter clean or install new androdi emulator it might solved your problem