flutter：從 flutter 應用程序構建 apk 失敗

Question

我正在嘗試從我的 flutter 應用程序構建 apk，但出現此錯誤：

Note: /mnt/Software/Linux/Flutter/flutter/.pub-cache/hosted/pub.dartlang.org/url_launcher-5.4.5/android/src/main/java/io/flutter/plugins/urllauncher/WebViewActivity.java uses or overrides a deprecated API.
Note: Recompile with -Xlint:deprecation for details.                    
Note: Some input files use or override a deprecated API.                
Note: Recompile with -Xlint:deprecation for details.                    

FAILURE: Build failed with an exception.                                

* What went wrong:                                                      
Execution failed for task ':keyboard_visibility:verifyReleaseResources'.
> A failure occurred while executing com.android.build.gradle.internal.tasks.Workers$ActionFacade
   > 1 exception was raised by workers:                                 
     com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource linking failed
     /home/tazik/.gradle/caches/transforms-2/files-2.1/4cfe0911440d16ca6e1ca90c791c61c2/core-1.0.0/res/values/values.xml:57:5-88:25: AAPT: error: resource android:attr/fontVariationSettings not found.

     /home/tazik/.gradle/caches/transforms-2/files-2.1/4cfe0911440d16ca6e1ca90c791c61c2/core-1.0.0/res/values/values.xml:57:5-88:25: AAPT: error: resource android:attr/ttcIndex not found.



* 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        

我搜索了一下，發現 compileSdkVersion 必須是 28。這是我構建的 gradle 應用程序：

android {
    compileSdkVersion 28

    lintOptions {
        disable 'InvalidPackage'
    }

    defaultConfig {
        // TODO: Specify your own unique Application ID (https://developer.android.com/studio/build/application-id.html).
        applicationId "net.mobile"
        minSdkVersion 16
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
        testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
    }

    signingConfigs {
        release {
            keyAlias keystoreProperties['keyAlias']
            keyPassword keystoreProperties['keyPassword']
            storeFile keystoreProperties['storeFile'] ? file(keystoreProperties['storeFile']) : null
            storePassword keystoreProperties['storePassword']
        }
    }
    buildTypes {
        release {
            signingConfig signingConfigs.release
        }
    }
}

但我仍然有錯誤？

Answer 1

您尚未接受某些 android 許可證。 請正確閱讀 flutter 博士 output 並運行flutter doctor --android-licenses

編輯：

此外，您似乎沒有 linux 的庫。

On Debian/Ubuntu/Mint: sudo apt-get install lib32stdc++6

On Fedora: dnf install libstdc++.i686

On Arch: pacman -S lib32-gcc-libs