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我正在尝试使用本教程为我的颤振应用程序设置 firebase AppCheck 。我被困在一步,即添加import com.google.firebase.appcheck.FirebaseAppCheck; MainActivity.java. 添加并运行后,flutter run我收到如下错误:

MainActivity.java:5: error: cannot find symbol
import com.google.firebase.appcheck.FirebaseAppCheck;
                                   ^
  symbol:   class FirebaseAppCheck
  location: package com.google.firebase.appcheck
1 error

FAILURE: Build failed with an exception.

一般来说,我是 Flutter 和移动应用程序开发的新手。请帮助我理解我做错了什么......

androint/app/build.gradle是这样添加应用程序检查依赖项的:


dependencies {
    implementation "org.jetbrains.kotlin:kotlin-stdlib-jdk7:$kotlin_version"
    implementation platform('com.google.firebase:firebase-bom:29.0.2')
    implementation 'com.google.firebase:firebase-analytics'
    implementation 'com.google.android.gms:play-services-safetynet:18.0.0'
    implementation 'com.google.firebase:firebase-appcheck-debug:16.0.0-beta01'
}
4

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