删除所有迁移和数据库后,laravel迁移显示旧错误?

I have configured Laravel database config file to use postgres DB. First of all when I tried to run migration, I got error like

[PDOException]

SQLSTATE[42P01]: Undefined table: 7 ERROR: relation "sales_default_calculations" does not exist
LINE 1: select "id" from "sales_default_calculations" where "status"...

I moved all my migrations from database\migrations folder to database\migrations_bak and dropped the Database and created new one. I even created new Database with different name than before. However, I get same above error, when I run php artisan migrate. Even though migration files and DB is cleared it's showing same old error message. What may have caused this anomaly? Please someone help.

When you make manual changes to database/migrations folder, you have to run the command composer dump-autoload to make sure the classes are reloaded.