首次創(chuàng)建會議室數(shù)據(jù)庫時，我不斷收到此異常  java.lang.NullPointerException: Attempt to invoke virtual method 'java.lang.String java.lang.Package.getName()' on a null object reference這是我的房間數(shù)據(jù)庫代碼：@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代碼：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"在構(gòu)建項目時，我也會收到此錯誤：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？我在這里看到了類似的問題，但沒有任何線索。請幫忙！