room무결성제약 (1) 썸네일형 리스트형 [Android/kotlin] java.lang.IllegalStateException: A migration from 1 to 2 was required but not found. 에러 해결 Room cannot verify the data integrity. Looks like you've changed schema but forgot to update the version number. You can simply fix this by increasing the version number. 가장 처음 위의 에러가 떠서 사용하던 room DB 버전을 올려주었다. @Database(entities = [Song::class, User::class, Like::class, Album::class], version = 3) 그리고 다시 돌렸더니 제목과 같은 java.lang.IllegalStateException: A migration from 1 to 2 was required but not f.. 이전 1 다음