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Fatal error: Class 'CI_Controller'

Hi there, i'm having some hard time tracking this problem.
I have update my codeigniter to 3.0 version and i get this error

Fatal error: Class 'CI_Controller' not found system\core\CodeIgniter.php on line 343


Did you follow upgrading instructions in 3.0-dev documentation?
Class naming changed in CI3....

Have you checked the spelling of your Controller Names? In CI the Controller File must be Start with Uppercase also the Controller Name.


Please post your code to see.
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If you are upgrading CI it will be good to see this instructions > http://www.codeigniter.com/userguide3/in...ading.html
They cover most/all of the cases which you may meet ..
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Please be aware, if you test under windows, it is forgiving of the CAPITAL letter requirement.

The deployment under a Linux or non-windows system might not be so forgiving.

Check the Controllers, Libraries and Models are capitalized correctly.

I hope this helps.

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