老师,这个问题怎么解决呢?

来源:4-4 room数据库众多注解讲解1

光羽隼

2020-07-19

  Caused by: java.lang.RuntimeException: cannot find implementation for com.gystry.libnetwork.cache.CacheDatabase. CacheDatabase_Impl does not exist
        at androidx.room.Room.getGeneratedImplementation(Room.java:94)
        at androidx.room.RoomDatabase$Builder.build(RoomDatabase.java:667)
        at com.gystry.libnetwork.cache.CacheDatabase.<clinit>(CacheDatabase.java:39)
        at com.gystry.libnetwork.cache.CacheDatabase.getDatabase(CacheDatabase.java:45) 
        at com.gystry.libnetwork.cache.CacheManager.getCache(CacheManager.java:18) 
        at com.gystry.pjetpack.ui.login.UserManager.<init>(UserManager.java:23) 
        at com.gystry.pjetpack.ui.login.UserManager.<clinit>(UserManager.java:14) 
        at com.gystry.pjetpack.ui.login.UserManager.getInstance(UserManager.java:19) 
        at com.gystry.pjetpack.ui.home.HomeViewModel.loadData(HomeViewModel.java:83) 
        at com.gystry.pjetpack.ui.home.HomeViewModel.access$000(HomeViewModel.java:28) 
        at com.gystry.pjetpack.ui.home.HomeViewModel$1.loadInitial(HomeViewModel.java:52) 
        at androidx.paging.ItemKeyedDataSource.dispatchLoadInitial(ItemKeyedDataSource.java:254) 
        at androidx.paging.ContiguousPagedList.<init>(ContiguousPagedList.java:175) 
        at androidx.paging.PagedList.create(PagedList.java:216) 
        at androidx.paging.PagedList$Builder.build(PagedList.java:388) 
        at androidx.paging.LivePagedListBuilder$1.compute(LivePagedListBuilder.java:206) 
        at androidx.paging.LivePagedListBuilder$1.compute(LivePagedListBuilder.java:171) 
        at androidx.lifecycle.ComputableLiveData$2.run(ComputableLiveData.java:101) 
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1167) 
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:641) 
        at java.lang.Thread.run(Thread.java:919) 
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光羽隼

提问者

2020-07-19

//img.mukewang.com/szimg/5f14252e09f12cd218261456.jpggetdataBase方法报错

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光羽隼
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LovelyChubby
ok,明白了
2020-07-19
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