Migration Failed in Laravel - How to Debug and Fix
This error occurs when running migrations fails due to various database or migration file issues.
The Error
Migration table not found / Migration failed
Common Causes
- 1 Database connection issues
- 2 Migration syntax errors
- 3 Table already exists
- 4 Foreign key constraint issues
- 5 Migration run in wrong order
Solutions
Check migration status
# See which migrations have run
php artisan migrate:status
# Rollback last batch
php artisan migrate:rollback
# Rollback specific steps
php artisan migrate:rollback --step=2
Reset and re-run all migrations (dev only)
# WARNING: This drops all tables!
php artisan migrate:fresh
# With seeders
php artisan migrate:fresh --seed
Fix foreign key order issues
// Rename migration files to control order
// 2024_01_01_000001_create_users_table.php
// 2024_01_01_000002_create_posts_table.php
// Or disable foreign key checks temporarily
Schema::disableForeignKeyConstraints();
Schema::dropIfExists('posts');
Schema::enableForeignKeyConstraints();
Add existence check in migration
public function up()
{
if (!Schema::hasTable('posts')) {
Schema::create('posts', function (Blueprint $table) {
$table->id();
$table->string('title');
$table->timestamps();
});
}
}
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