相关疑难解决方法(0)

如果添加以下行，则在创建新的Android Studio项目（“空活动”类型）后：

    // Lifecycle/View Models
    def lifecycleVersion = '2.0.0'
    implementation "androidx.lifecycle:lifecycle-extensions:$lifecycleVersion"
    annotationProcessor "androidx.lifecycle:lifecycle-compiler:$lifecycleVersion"

    // Core testing
    def coreTestingVersion = '2.0.1'
    testImplementation "androidx.arch.core:core-testing:$coreTestingVersion"
    androidTestImplementation "androidx.arch.core:core-testing:$coreTestingVersion"

对于应用程序的build.gradle文件，当您尝试运行connectedCheck项目任务时会看到错误。查看输出：

Zachs-MBP:CoreTestingVersionExample Zach$ ./gradlew connectedCheck

FAILURE: Build failed with an exception.

* What went wrong:
Could not determine the dependencies of task ':app:preDebugAndroidTestBuild'.
> Could not resolve all task dependencies for configuration ':app:debugAndroidTestRuntimeClasspath'.
   > Could not resolve androidx.arch.core:core-common:2.0.0.
     Required by:
         project :app
      > Cannot find a version of 'androidx.arch.core:core-common' that satisfies the …

在添加Room db依赖关系并使用我的应用程序对其进行配置后，我遇到了一些错误，其中大部分是Failed to read get kotlin metadata for...尽管我没有在项目中使用kotlin，第二个错误是关于TypeConverter变量的，private List<String> labels;我正在做一些关于如何添加List或ArrayList作为TypeConverter，但是我没有为此感到灵魂

> Task :app:processDebugAnnotationsWithJavac
D:\Courses\Java\Android Projects\ProCSIS\app\src\main\java\www\pro_cs_is\com\Item.java:20: Note: Failed to read get kotlin metadata for [Ljava.lang.Object;@2f693bda
public class Item implements Serializable {
       ^
D:\Courses\Java\Android Projects\ProCSIS\app\src\main\java\www\pro_cs_is\com\Item.java:67: error: Cannot figure out how to save this field into database. You can consider adding a type converter for it.
    private List<String> labels;
                         ^
D:\Courses\Java\Android Projects\ProCSIS\app\src\main\java\www\pro_cs_is\com\ItemDao.java:13: Note: Failed to read get kotlin metadata for [Ljava.lang.Object;@5179217e
    @Insert
    ^
D:\Courses\Java\Android Projects\ProCSIS\app\src\main\java\www\pro_cs_is\com\Item.java:20: Note: Failed to read …