MissingPluginException but i can see flutter_webview_plugin module in my project

[manondidi]

Dart Error: Unhandled exception:
MissingPluginException(No implementation found for method launch on channel flutter_webview_plugin)

[manondidi]

android

[manondidi]

add flutter into a exiting android project

[manondidi]

MissingPluginException(No implementation found for method close on channel flutter_webview_plugin)
#0 MethodChannel.invokeMethod (package:flutter/src/services/platform_channel.dart:291:7)

#1 FlutterWebviewPlugin.close (package:flutter_webview_plugin/src/base.dart:154:48)

#2 _WebviewScaffoldState.dispose (package:flutter_webview_plugin/src/webview_scaffold.dart:84:22)
#3 StatefulElement.unmount (package:flutter/src/widgets/framework.dart:3878:12)
#4 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1709:13)
#5 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#6 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:3733:14)
#7 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#8 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#9 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4826:14)
#10 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#11 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#12 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:3733:14)
#13 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#14 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#15 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4826:14)
#16 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#17 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#18 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4826:14)
#19 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#20 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#21 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4826:14)
#22 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#23 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#24 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4826:14)
#25 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#26 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#27 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:3733:14)
#28 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#29 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#30 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:3733:14)
#31 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#32 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#33 ComponentElement.visitChildren (package:flutter/src/widgets/framework.dart:3733:14)
#34 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#35 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#36 SingleChildRenderObjectElement.visitChildren (package:flutter/src/widgets/framework.dart:4826:14)
#37 _InactiveElements._unmount (package:flutter/src/widgets/framework.dart:1705:13)
#38 _InactiveElements._unmount. (package:flutter/src/widgets/framework.dart:1707:7)
#39 ComponentElement

[manondidi]

i can give you my source code if you leave email

[charafau]

that looks strange, what is your plugin version? try to run flutter clean maybe remove .dart_tool and get packages again.

[manondidi]

that looks strange, what is your plugin version? try to run flutter clean maybe remove .dart_tool and get packages again.

add flutter into a exiting android project

flutter_webview_plugin: ^0.3.0+2

did you try use flutter_webview_plugin in a exiting program add into flutter?

[manondidi]

that looks strange, what is your plugin version? try to run flutter clean maybe remove .dart_tool and get packages again.

it work fine in a flutter project but not in a exiting project add into flutter

[manondidi]

还不只是这个原因

that looks strange, what is your plugin version? try to run flutter clean maybe remove .dart_tool and get packages again.

i fixed this problem,but ...
i think it is maybe a bug in a exiting project add into flutter
i add flutter into my project by https://github.com/flutter/flutter/wiki/Add-Flutter-to-existing-apps
but i dont use flutterView or createFragment
i create a activity extand FlutterFragmentActivity
MissingPluginException(No implementation found for method close on channel flutter_webview_plugin)

i fixed it by

app.gradle
implementation project(':flutter_webview_plugin')
my activity

class ShopActivity : FlutterFragmentActivity() {
    override fun onCreate(savedInstanceState: Bundle?) {
        super.onCreate(savedInstanceState)

        GeneratedPluginRegistrant.registerWith(this)
        FlutterWebviewPlugin.registerWith(this.registrarFor("com.flutter_webview_plugin.FlutterWebviewPlugin"))
}
}

why it happend? can you fix it without FlutterWebviewPlugin.registerWith???

because i dont use flutterview or flutterfragment?

thanks