无法更改db '/data/data/my.easymedi.controller/数据库/EasyMediInfo的语言环境。db”“en_US”

In my android application there is a pre-defined database which is in the assets folder. I've created a table android_metadata with a column called locale and with one record en_US. In my application user should enter his/her details and click save button. When click the save button I got following error.In my android application there is a pre-define