AndroidManifest.xml:5:9-42 处的属性 application@name 需要占位符替换,但未提供 <applicationName> 的值。 - 颤振

Attribute application@name at AndroidManifest.xml:5:9-42 requires a placeholder substitution but no value for <applicationName> is provided. - Flutter

在 运行 一个项目上我遇到了以下错误。

Launching lib\main.dart on SM N970F in debug mode...
lib\main.dart:1
Parameter format not correct -
D:\CIIT GUIDE\Flutter\Apps\multi_delivery_app\android\app\src\main\AndroidManifest.xml:5:9-42 Error:
    Attribute application@name at AndroidManifest.xml:5:9-42 requires a placeholder substitution but no value for <applicationName> is provided.
D:\CIIT GUIDE\Flutter\Apps\multi_delivery_app\android\app\src\debug\AndroidManifest.xml Error:
    Validation failed, exiting

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugMainManifest'.
> Manifest merger failed with multiple errors, see logs

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

这就是 build.gradleandroid/app 中的样子。


android {
    compileSdkVersion 29
    // buildToolsVersion '26.0.3'

    compileOptions {
        sourceCompatibility JavaVersion.VERSION_1_8
        targetCompatibility JavaVersion.VERSION_1_8
    }

    kotlinOptions {
        jvmTarget = '1.8'
    }

    sourceSets {
        main.java.srcDirs += 'src/main/kotlin'
    }

    defaultConfig {
        applicationId "com.example.multi_delivery_app"
        minSdkVersion 28
        targetSdkVersion 29
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        // Whosebug solution
        manifestPlaceholders = [appAuthRedirectScheme: "com.example.multi_delivery_app"]   
    }

    buildTypes {
        release {
            signingConfig signingConfigs.debug
        }
    }

我在网上找了几个和react-native相关的解决方案,但是都不行。以下是我尝试过的解决方案的link。

我认为在 build.gradle 中应该添加带有 Android 应用程序 class 的全名的 applicationName 键(它扩展了 FlutterApplication

例如:

defaultConfig {
    ...
    manifestPlaceholders = [appAuthRedirectScheme: "com.example.multi_delivery_app", 
                            applicationName: "com.example.multi_delivery_app.Application"]
}

将此代码添加到位于 android\app\src\main\AndroidManifest.xml

的 AndroidManifest.xml 文件中

android:name="${applicationName}"

示例:

<manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="com.example.your_app_name">

   <application
        android:label="Your App Name"
        android:name="${applicationName}"
        android:icon="@mipmap/ic_launcher">
        <activity
            android:name=".MainActivity"
            android:exported="true"
            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">
            
            <meta-data
              android:name="io.flutter.embedding.android.NormalTheme"
              android:resource="@style/NormalTheme"
              />
            <intent-filter>
                <action android:name="android.intent.action.MAIN"/>
                <category android:name="android.intent.category.LAUNCHER"/>
            </intent-filter>
        </activity>
        <meta-data
            android:name="flutterEmbedding"
            android:value="2" />
    </application>
</manifest>

您可以将 appAuthRedirectScheme 属性添加到 manifestPlaceholders 而不是替换整个数组,方法是使用 += 而不是 =

示例:

defaultConfig {
    ...
    manifestPlaceholders += [appAuthRedirectScheme: "com.example.multi_delivery_app"]
}

在AndroidManifest.xml

 android:name="${applicationName}" // change application to applicationName
 android:label="olt"
 android:icon="@mipmap/launcher_icon">```

我遇到过这样的问题。
我发现清单文件中没有定义该包。
如图所示