Error: RangeError (index): Index out of range: index should be less than 2: 2

[mkasaii16]

when run obj file in flutter web

Error: RangeError (index): Index out of range: index should be less than 2: 2 at Object.throw_ [as throw] (http://localhost:64405/dart_sdk.js:5080:11) at [dartx._get] (http://localhost:64405/dart_sdk.js:17547:21) at index$6.OBJLoader.new.parse (http://localhost:64405/packages/three_dart_jsm/three_dart_jsm/loaders/index.dart.lib.js:993:122) at parse.next () at runBody (http://localhost:64405/dart_sdk.js:40660:34) at Object._async [as async] (http://localhost:64405/dart_sdk.js:40691:7) at index$6.OBJLoader.new.parse (http://localhost:64405/packages/three_dart_jsm/three_dart_jsm/loaders/index.dart.lib.js:934:20) at http://localhost:64405/packages/three_dart_jsm/three_dart_jsm/loaders/index.dart.lib.js:926:42 at Generator.next () at runBody (http://localhost:64405/dart_sdk.js:40660:34) at Object._async [as async] (http://localhost:64405/dart_sdk.js:40691:7) at http://localhost:64405/packages/three_dart_jsm/three_dart_jsm/loaders/index.dart.lib.js:925:46 at Object._checkAndCall (http://localhost:64405/dart_sdk.js:5279:16) at Object.dcall (http://localhost:64405/dart_sdk.js:5284:17) at index.FileLoader.new.load (http://localhost:64405/packages/three_dart/three3d/ThreeHelper.dart.lib.js:2597:70) at load.next () at http://localhost:64405/dart_sdk.js:40641:33 at _RootZone.runUnary (http://localhost:64405/dart_sdk.js:40511:59) at _FutureListener.thenAwait.handleValue (http://localhost:64405/dart_sdk.js:35438:29) at handleValueCallback (http://localhost:64405/dart_sdk.js:35999:49) at _Future._propagateToListeners (http://localhost:64405/dart_sdk.js:36037:17) at [_completeWithValue] (http://localhost:64405/dart_sdk.js:35872:23) at async._AsyncCallbackEntry.new.callback (http://localhost:64405/dart_sdk.js:35906:35) at Object._microtaskLoop (http://localhost:64405/dart_sdk.js:40778:13) at _startMicrotaskLoop (http://localhost:64405/dart_sdk.js:40784:13) at http://localhost:64405/dart_sdk.js:36261:9