Laravel migration: “Foreign key constraint is incorrectly formed” (errno 150)

Question

When migrating my DB, this error appears. Below is my code followed by the error that I am getting when trying to run the migration.

Code

Answer 1

I got the same message for data type miss-matched problem.

I used bigIncrements() for 'id' and when I used it as foreign key (used bigInteger()) I got the error.

I have found the solution, bigIncrements() returns unsignedBigInteger. So need to use unsignedBigInteger() instead of bigInteger() in foreign key

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