Error when calling launch() on Flutter Web

[Ellynnn]

I keep getting an error whenever for var browser = await puppeteer.launch(); for Flutter Web. Does anyone know what is the solution for this or what is the problem?

The following is the error message

Error
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 297:3       throw_
dart-sdk/lib/_internal/js_dev_runtime/patch/io_patch.dart 279:5                   _environment
dart-sdk/lib/io/platform_impl.dart 83:17                                          get environment
dart-sdk/lib/io/platform.dart 177:59                                              get environment
packages/puppeteer/src/puppeteer.dart 299:71                                      defaultArgs
packages/puppeteer/src/puppeteer.dart 135:28                                      launch
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 84:54                runBody
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 127:5                _async
packages/puppeteer/src/puppeteer.dart 113:25                                      launch
packages/projectname/views/home.view.dart 79:3                                  <fn>
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 84:54                runBody
dart-sdk/lib/_internal/js_dev_runtime/patch/async_patch.dart 127:5                _async
packages/projectname/views/home.view.dart 79:3                                  <fn>
packages/flutter/src/material/ink_well.dart 1183:21                               handleTap
packages/flutter/src/gestures/recognizer.dart 315:24                              invokeCallback
packages/flutter/src/gestures/tap.dart 652:11                                     handleTapUp
packages/flutter/src/gestures/tap.dart 309:5                                      [_checkUp]
packages/flutter/src/gestures/tap.dart 242:7                                      handlePrimaryPointer
packages/flutter/src/gestures/recognizer.dart 670:9                               handleEvent
packages/flutter/src/gestures/pointer_router.dart 98:7                            [_dispatch]
packages/flutter/src/gestures/pointer_router.dart 143:9                           <fn>
dart-sdk/lib/_internal/js_dev_runtime/private/linked_hash_map.dart 21:7           forEach
packages/flutter/src/gestures/pointer_router.dart 141:17                          [_dispatchEventToRoutes]
packages/flutter/src/gestures/pointer_router.dart 127:7                           route
packages/flutter/src/gestures/binding.dart 495:5                                  handleEvent
packages/flutter/src/gestures/binding.dart 475:14                                 dispatchEvent
packages/flutter/src/rendering/binding.dart 430:11                                dispatchEvent
packages/flutter/src/gestures/binding.dart 420:7                                  [_handlePointerEventImmediately]
packages/flutter/src/gestures/binding.dart 383:5                                  handlePointerEvent
packages/flutter/src/gestures/binding.dart 330:7                                  [_flushPointerEventQueue]
packages/flutter/src/gestures/binding.dart 299:9                                  [_handlePointerDataPacket]
lib/_engine/engine/platform_dispatcher.dart 1361:5                                invoke1
lib/_engine/engine/platform_dispatcher.dart 286:5                                 invokeOnPointerDataPacket
lib/_engine/engine/pointer_binding.dart 398:30                                    [_sendToFramework]
lib/_engine/engine/pointer_binding.dart 224:7                                     onPointerData
lib/_engine/engine/pointer_binding.dart 1001:20                                   <fn>
lib/_engine/engine/pointer_binding.dart 930:7                                     <fn>
lib/_engine/engine/pointer_binding.dart 531:9                                     loggedHandler
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 550:37  _checkAndCall
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/operations.dart 555:39  dcall