flutter 集成报MissingPluginException

umeng_common_sdk: ^1.3.0

UmengCommonSdk.initCommon(AndroidKey, iOSKey, "flutter");

安卓代码：

UMConfigure.preInit(this, "秘钥", "apk");

报错：

MissingPluginException(No implementation found for method initCommon on channel umeng_common_sdk)

stack:#0 MethodChannel._invokeMethod (package:flutter/src/services/platform_channel.dart:365:7)

<asynchronous suspension>

#1 UmengCommonSdk.initCommon (package:umeng_common_sdk/umeng_common_sdk.dart:17:29)

<asynchronous suspension>

你们文档写的不清楚，很多东西没写，其实安卓还需要手动执行这句才行，不过还没收到数据：

flutterEngine.getPlugins().add(new UmengCommonSdkPlugin());

iOS也报这个错，也按照文档执行这个了

[UMConfigure initWithAppkey:@"秘钥" channel:@"AppStore"];