FVM install error FormatException: Invalid UTF-8 byte (at offset 5)

Question

I'm trying to download flutter sdk via fvm, but this error is not allowed

C:\>fvm install stable Creating local mirror... Unhandled exception: FormatException: Invalid UTF-8 byte (at offset 5) #0 _Utf8Decoder.convertChunked (dart:convert-patch/convert_patch.dart:1851) #1 _Utf8ConversionSink.addSlice (dart:convert/string_conversion.dart:304) #2 _Utf8ConversionSink.add (dart:convert/string_conversion.dart:300) #3 _ConverterStreamEventSink.add (dart:convert/chunked_conversion.dart:69) #4 _SinkTransformerStreamSubscription._handleData ] #5 _rootRunUnary (dart:async/zone.dart:1407) #6 _CustomZone.runUnary (dart:async/zone.dart:1308) #7 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1217) #8 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339) #9 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:271) #10 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:784) #11 _StreamController._add (dart:async/stream_controller.dart:658) #12 _StreamController.add (dart:async/stream_controller.dart:606) #13 _Socket._onData (dart:io-patch/socket_patch.dart:2447) #14 _rootRunUnary (dart:async/zone.dart:1415) #15 _CustomZone.runUnary (dart:async/zone.dart:1308) #16 _CustomZone.runUnaryGuarded (dart:async/zone.dart:1217) #17 _BufferingStreamSubscription._sendData (dart:async/stream_impl.dart:339) #18 _BufferingStreamSubscription._add (dart:async/stream_impl.dart:271) #19 _SyncStreamControllerDispatch._sendData (dart:async/stream_controller.dart:784) #20 _StreamController._add (dart:async/stream_controller.dart:658) #21 _StreamController.add (dart:async/stream_controller.dart:606) #22 new _RawSocket.<anonymous closure> (dart:io-patch/socket_patch.dart:1936) #23 _NativeSocket.issueReadEvent.issue (dart:io-patch/socket_patch.dart:1379) #24 _microtaskLoop (dart:async/schedule_microtask.dart:40) #25 _startMicrotaskLoop (dart:async/schedule_microtask.dart:49) #26 _runPendingImmediateCallback (dart:isolate-patch/isolate_patch.dart:123) #27 _RawReceivePort._handleMessage (dart:isolate-patch/isolate_patch.dart:190)

how can i fix it?

window reset and cmd administrator attempts and also powershell administrator

Answer 1

First of all you need to choco install fvm if you are using Windows. Then run fmv use stable (or specific version) INSIDE A FLUTTER PROJECT, not in disk C.