D:\workspace\Demo\RN_tanhuajiaoyou\tanhuajiaoyou\android\app\src\debug\AndroidManifest.xml:12:7-34 Error:
        Attribute application@allowBackup value=(false) from AndroidManifest.xml:12:7-34
        is also present at [:native-speech] AndroidManifest.xml:12:9-35 value=(true).
        Suggestion: add 'tools:replace="android:allowBackup"' to <application> element at AndroidManifest.xml:7:5-117 to override.

解决方法：

tanhuajiaoyou\android\app\src\debug\AndroidManifest.xml

<application 增加

android:allowBackup="false" tools:replace="android:allowBackup"