Error, Again and Again and Again

Since I'm new with symfony I'm getting lots of errors.

Here are the things I need to do when everything is not working again -- do it from scratch!

• clear the database
• dump the new database
• ./symfony doctrine:migrate ; notice the version returned
• >> doctrine  Migrating from version 0 to 130
• update created table migration_version to the version returned (130)
• ./symfony doctrine:build-model
• make sure /lib/model/doctrine/base is empty of else it will cause an error
• ./symfony doctrine:generate-migrations-diff ;
• should return "Could not generate migration classes from difference"

• make sure /config/doctrine/schema.yml is updated, specially if planning to add new tables 
• ./symfony doctrine:generate-migrations-diff (lib/migrations will be genearated)
• ./symfony doctrine:migrate
• >> doctrine  Migrating from version 139 to 141
• >> doctrine  Migration complete

• run ./symfony doctrine:build-model; ./symfony doctrine:build-sql; ./symfony doctrine:insert-sql
• ./symfony cache:clear
• ./symfony doctrine:build-forms;
• ./symfony generate:module frontend content
• ./symfony doctrine:build-filters;