codeigniter 2.0 Fatal error: Class 'Controller' not found in

Question

i have download the new codeigniter 2.0 and put my controller,model and view files in the new codeigniter 2.0 installation. but i got this error

Fatal error: Class

Answer 1

Along with that CI_ prefix to your controller, any core classes you extend, you should place withing the applications/core/ folder. This is because the core CodeIgniter classes have been moved to the system/core/ folder.