在项目或库中找不到清单io.flutter.app.FlutterApplication中引用的类

如何解决在项目或库中找不到清单io.flutter.app.FlutterApplication中引用的类

需要一些帮助，我才刚刚起步，不知道我的AndroidManifest.xml文件有什么错误。在android：name =“ io.Flutter.app.FlutterApplication”，android：name =“。MainActivity ”。在元数据中也有错误。我不知道该文件是否已损坏，我已经打开了其他Android Flutter项目，并且在AndroidManifest.xml文件中具有相同的错误，但是APP正常运行，没有任何错误或任何其他内容。现在我添加的权限不起作用。

`

<uses-permission android:name="android.permission.ACCES_FINE_LOCATION"/>
<uses-permission android:name="android.permission.ACCES_COARSE_LOCATION"/>

<!-- io.Flutter.app.FlutterApplication is an android.app.Application that
     calls FlutterMain.startinitialization(this); in its onCreate method.
     In most cases you can leave this as-is,but you if you want to provide
     additional functionality it is fine to subclass or reimplement
     FlutterApplication and put your custom class here. -->
<application
    android:name="io.Flutter.app.FlutterApplication"
    android:label="clima"
    android:icon="@mipmap/ic_launcher">
    <activity
        android:name=".MainActivity"
        android:launchMode="singletop"
        android:theme="@style/LaunchTheme"
        android:configChanges="orientation|keyboardHidden|keyboard|screenSize|smallestScreenSize|locale|layoutDirection|fontScale|screenLayout|density|uiMode"
        android:hardwareAccelerated="true"
        android:windowSoftInputMode="adjustResize">
        <!-- Specifies an Android theme to apply to this Activity as soon as
             the Android process has started. This theme is visible to the user
             while the Flutter UI initializes. After that,this theme continues
             to determine the Window background behind the Flutter UI. -->
        <Meta-data
          android:name="io.Flutter.embedding.android.normalTheme"
          android:resource="@style/normalTheme"
          />
        <!-- displays an Android View that continues showing the launch screen
             Drawable until Flutter paints its first frame,then this splash
             screen fades out. A splash screen is useful to avoid any visual
             gap between the end of Android's launch screen and the painting of
             Flutter's first frame. -->
        <Meta-data
          android:name="io.Flutter.embedding.android.SplashScreenDrawable"
          android:resource="@drawable/launch_background"
          />
        <intent-filter>
            <action android:name="android.intent.action.MAIN"/>
            <category android:name="android.intent.category.LAUNCHER"/>
        </intent-filter>
    </activity>
    <!-- Don't delete the Meta-data below.
         This is used by the Flutter tool to generate GeneratedpluginRegistrant.java -->
    <Meta-data
        android:name="FlutterEmbedding"
        android:value="2" />
</application>

`