/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

2 votes363 views2 answers
Laravel/ui for laravel 7
PHP Laravel
0 vote378 views1 answer
Access denied for user 'accessor access'@'localhost' (using password: NO) cpanel laravel
PHP Laravel
0 vote376 views1 answer
Curl error (code 3) url malformed laravel
PHP Laravel
0 vote348 views1 answer
Creating default object from empty value laravel
PHP Laravel
11 votes340 views4 answers
Laravel 8 password confirmation validation
PHP Laravel
10 votes356 views2 answers
Format date in laravel using carbon
PHP Laravel
3 votes352 views1 answer
Laravel check if environment is production
PHP Laravel
0 vote335 views1 answer
Function inside model laravel
PHP Laravel
1 vote336 views2 answers
Laravel collection implode
PHP Laravel
1 vote279 views1 answer
Laravel validation on fields inside array in request
PHP Laravel