Amazon Web Services – AWS EC2 – Codeigniter Class CI_Controller error

I have migrated by Codeigniter based PHP/MySQL application from GoDaddy to AWS EC2 and spent several days to resolve the following error.

Class ‘CI_Controller’ not found.

After trying multiple options, I copied the application files directly from the server and that has fixed this issue.

Previously – I copied the code from the local machine and then imported the database.

In my opinion – database should be imported first and then the files directly from the source server.

If the database is imported after the file migration then there is a high chance of experiencing the mentioned error.

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