Hello @developernotes,
Recently we are also trying to migrate from sqlcipher 3 to v4 as per your latest upgrade to net.zetetic:sqlcipher-android:4.5.6@aar, but its giving same error as mentioned by @petrakeas . I know its old thread for this discussion but we need your urgent help in this. We have also followed your suggestion given in the post How to encrypt a plaintext SQLite database to use SQLCipher (and avoid “file is encrypted or is not a database” errors) , but still getting below error
Exception occured while getting valid activeSessionandroid.database.sqlite.SQLiteException: file is not a database (code 26): , while compiling: SELECT COUNT(*) FROM sqlite_schema;