如何在Kotlin中首次建立Room数据库时解决异常

Question

首次创建会议室数据库时，我不断收到此异常  java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Package.getName()' on a null object reference这是我的房间数据库代码：@Database(entities = [Channel::class], version = 1)abstract class ChannelRoomDatabase : RoomDatabase() {    abstract fun channelDao(): ChannelDao    companion object {        private var INSTANCE: ChannelRoomDatabase? = null        fun getInstance(application: Application): ChannelRoomDatabase? {            if (INSTANCE == null) {                    INSTANCE = Room.databaseBuilder(application,                            ChannelRoomDatabase::class.java,                            "channels")                            .build()            }            return INSTANCE        }    }}和gradle代码：apply plugin: 'com.android.application'apply plugin: 'kotlin-android'apply plugin: 'kotlin-android-extensions'apply plugin: 'kotlin-kapt'    def room_version = "1.1.1"    implementation "android.arch.persistence.room:runtime:$room_version"    kapt "android.arch.persistence.room:compiler:$room_version"在构建项目时，我也会收到此错误：Execution failed for task ':app:kaptGenerateStubsDebugKotlin'.Folder /home/Desktop/MySendBird/app/build/generated/source/kaptKotlin/debugFolder /home/Desktop/MySendBird/app/build/generated/source/kaptKotlin/release3rd-party Gradle plug-ins may be the cause可能是什么原因？我在这里看到了类似的问题，但没有任何线索。请帮忙！