How to fix foreign key error when running migration

Question

I don\'t know why it\'s still don\'t work and show this:

Illuminate\\Database\\QueryException : SQLSTATE[HY000]: General error: 1005 Can\'t create tabl

Answer 1

The problem here is that id_druhu in druh_knihies is defined as bigIncrements and you create doba as unsignedInteger and when using foreign key type should be exactly same. So in this case instead of

$table->unsignedInteger('doba');

you should use

$table->unsignedBigInteger('doba');