We've all been there... banging our heads against a wall for 20 minutes wondering why our app isn't working before we realize we forgot to seed our database when running migrations. Okay, easy fix:

$ php artisan migrate --seed
Migration table created successfully.
Migrating: 1996_02_27_123456_create_pokemon_table
Migrated:  1996_02_27_123456_create_pokemon_table
Seeding: PokemonSeederReflectionException : Class PokemonSeeder does not exist