What are some common challenges CodeIgniter developers face when working on large-scale projects?

CodeIgniter developers working on large-scale projects often encounter challenges such as managing complex codebases, ensuring consistent code standards, and maintaining performance as the application grows. Collaboration with other team members is crucial, as multiple developers may work on different modules simultaneously, requiring effective version control and clear documentation. Additionally, integrating third-party libraries and scaling the application to handle high traffic can require advanced skills and careful planning.