/PHP/Laravel/Laravel General error: 1215 Cannot add foreign key constraint"

Laravel General error: 1215 Cannot add foreign key constraint"

General error: 1215 Cannot add foreign key constraint laravel

Laravel 5.8 Added bigIncrements As Defaults

So there is mismatch in foreign key field types. You see bigIncrements(id) in 
User table and unsigned Integer(user_id) in questions table.

How to fix:

1. Either change original migration from bigIncrements() to just
increments()

2. Or in your foreign key column do unsignedBigInteger() instead of 
unsignedInteger().

Laravel General error: 1215 Cannot add foreign key constraint"

 public function up()
    {
        Schema::table('tests', function (Blueprint $table) {
            $table->string('gender');
        });
    }

Source: dev.to

Similar codes

14 votes324 views6 answers
Redirect back laravel
PHP Laravel
-1 vote302 views2 answers
Laravel 5.6 orderby
PHP Laravel
3 votes364 views2 answers
How to redirect a particular user role to a page after login laravel
PHP Laravel
1 vote363 views2 answers
Laravel add attribute to model
PHP Laravel
0 vote331 views2 answers
Laravel roles and permissions
PHP Laravel
16 votes366 views5 answers
Laravel blade for loop
PHP Laravel
0 vote362 views1 answer
Laravel cmd add to column
PHP Laravel
0 vote307 views1 answer
Refresh laravel model
PHP Laravel
7 votes335 views4 answers
Laravel blade uppercase
PHP Laravel
31 votes389 views6 answers
Make model with migration laravel
PHP Laravel