为什么通过添加TextToSpeech会出现错误？

Question

[我试图在我的（Flutter）应用程序中启动文本到语音的功能，但是如果我在flutter_tts: ^0.8.6下写dependencies:，在教程中我是怎么看的，则出现错误。

这是pubspec.yaml中的代码：

dependencies:
  flutter_tts: ^0.8.6

  flutter:
    sdk: flutter

  # The following adds the Cupertino Icons font to your application.
  # Use with the CupertinoIcons class for iOS style icons.
  cupertino_icons: ^0.1.2

dev_dependencies:
  flutter_test:
    sdk: flutter

这是错误：

C:\Users\...\Desktop\tts_app\android\app\src\debug\AndroidManifest.xml Error:
    uses-sdk:minSdkVersion 16 cannot be smaller than version 21 declared in library [:flutter_tts] C:\Users\...\Desktop\tts_app\build\flutter_tts\intermediates\library_manifest\debug\AndroidManifest.xml as the library might be using APIs not available in 16
    Suggestion: use a compatible library with a minSdk of at most 16,
        or increase this project's minSdk version to at least 21,
        or use tools:overrideLibrary="com.tundralabs.fluttertts" to force usage (may lead to runtime failures)

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:processDebugManifest'.
> Manifest merger failed : uses-sdk:minSdkVersion 16 cannot be smaller than version 21 declared in library [:flutter_tts] C:\Users\Simon\Desktop\App Entwickeln\Projekte\tts_app\build\flutter_tts\intermediates\library_manifest\debug\AndroidManifest.xml as the library might be using APIs not available in 16
    Suggestion: use a compatible library with a minSdk of at most 16,
        or increase this project's minSdk version to at least 21,
        or use tools:overrideLibrary="com.tundralabs.fluttertts" to force usage (may lead to runtime failures)

* 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.

• 在https://help.gradle.org获得更多帮助

3秒内失败错误完成：Gradle任务assembleDebug失败，退出代码为1

Answer 1

TTS插件需要您的Android版本大于API级别21。但是在

Android / app / build.gradle

文件该值仍为16。如下将其更改为21即可。

defaultConfig {
        applicationId "com.example.eventtweb"
        minSdkVersion 21
        targetSdkVersion 28
        versionCode flutterVersionCode.toInteger()
        versionName flutterVersionName
    }