Schema :: create(undefined
,函数(Blueprint $ table){
$ table-> bigIncrements('id');
$ table-> integer('id_data')-> unsigned();
$ table-> foreign('id_data')-> references('id')-> on(gambars
);
$ table-> string('file');
$ table-> string('datas'
);
$ table-> timestamps();
我到处搜索外键 我已经将unsigned放到'id_ data'了,但是它再次给出了同样的错误