Laravel – SQLSTATE[42000]: Syntax error or access violation

I am trying to make a migration in my Laravel project, but i get the following error:

SQLSTATE[42000]: Syntax error or access violation: 1072 Key column ‘department_id’ doesn’t exist in table (SQL: alter table courses add index courses_department_id_index(department_id))

I removed 1 line from my table.php file which i thought caused the error, and then it worked just fine. Could someone explain where my syntax is wrong in the following line?



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Method 1

The error means that there is no department_id column that references the foreign key, Because you should create column before creating a foreign key, I think your migration file should contains the following:


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