android dao错误有什么问题？

我构建了我的android项目，但消息输出了以下错误， 此错误来自android dao

错误：31、19错误：输入“fromJson”不匹配{，；'，'，'，K_ALTER，K_ANALYZE，K_ATTACH，K_BEGIN，K_COMMIT，K_CREATE，K_DELETE，K_DETACH，K_DROP，K_END，K_EXCEPT，K_EXPLAIN，K_FROM，K_GROUP，K_INSERT，K_intersection，K_LIMIT，K_ORDER，K_PRAGMA，K_REINDEX，K_RELEASE，K_REPLACE，K_ROLLBACK，K_SAVEPOINT，K_SELECT，K_SELECT，K_UNION，K_UNION，K_更新，K_CHAR，K_，K_CHAR，K_，K_，K_字符，K2770

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这可能是SQL查询中的语法错误

确保在连接查询字符串时，在每行末尾都放置一个空格

@Query("SELECT c.username, c.first_name, c.last_name, r1.water_amount AS waterAmountLastMonth " +
       "FROM citizen c " +
       "INNER JOIN report r1 ON r1.date_month = :dateMonth " +
       "ORDER BY c.first_name ASC")

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对于我的情况，我写了一个错误的查询-

 @Query("SELECT * " +
                DbConstants.TABLE_MEDICINE + " WHERE " + DbConstants.MEDICINE_ID + " = (:id)")
        fun read(id: Long): LiveData<Medicine>
 /*Notice here,I missed "FROM" query in the query.*/

@Query("SELECT * FROM " +
            DbConstants.TABLE_MEDICINE + " WHERE " + DbConstants.MEDICINE_ID + " = (:id)")
    fun read(id: Long): LiveData<Medicine> /*Include "FROM" now. 

正确的查询是-

 @Query("SELECT * " +
                DbConstants.TABLE_MEDICINE + " WHERE " + DbConstants.MEDICINE_ID + " = (:id)")
        fun read(id: Long): LiveData<Medicine>
 /*Notice here,I missed "FROM" query in the query.*/

@Query("SELECT * FROM " +
            DbConstants.TABLE_MEDICINE + " WHERE " + DbConstants.MEDICINE_ID + " = (:id)")
    fun read(id: Long): LiveData<Medicine> /*Include "FROM" now. 

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因此，如果有人遇到此类错误，请首先检查您的SQL查询是否正确。

请提供一个，其中包括触发此错误的类的源代码，或者至少包括fromJson方法。@Commonware是的，触发此错误的我的gson类，我重命名了它class@CommonsWare我重命名这个类也不行rk。。。。