Yii:: WARNING unable to include files on some pages; please explain - yii-extensions

Question

I have been recently running into this issue once I uploaded my Application to an online server,
I keep receiving Warnings such as:
YiiBase::include(CJuiInputWidget.php) [<a href='yiibase.include'>yiibase.include</a>]: failed to open stream: No such file or directory
--OR--
YiiBase::include(YiiMailer.php) [<a href='yiibase.include'>yiibase.include</a>]: failed to open stream: No such file or directory
--OR--
YiiBase::include(CGridColumn.php) [<a href='yiibase.include'>yiibase.include</a>]: failed to open stream: No such file or directory
The real issue here is that all of these pages are working perfectly on my localhost or on other pages on
the online server.
When I hid the warnings, some pages are displayed normally while others are not, I know the error is still there.
My Localhost specs are:
XAMPP, Windows 7 OS, PHP Version 5.3.8
Online Server Specs:
XAMPP, Windows 7 OS, PHP Version 5.2.6
I am currently solving the issue by importing the required widgets in main.
What is also crazy for example is that CGridColumn and CJuiInputwidget are working perfectly on other pages ,
I have made sure that case sensitivity is considered.
Can anyone point me in the right direction or give me any pointers or thoughts on what is happening, any tips or advices are amazingly appreciated!
Here is also a stack trace of whats going on:
**Stack trace:
#0 D:\...\yii\framework\YiiBase.php(395): spl_autoload_call()
#1 D:\...\yii\framework\YiiBase.php(395): autoload()
#2 D:\...\yii\framework\YiiBase.php(296): autoload()
#3 D:\...\yii\framework\YiiBase.php(196): import()
#4 D:\...\yii\framework\zii\widgets\grid\CGridView.php(363):
createComponent()**
as you can see the major issue has to do with the autoload
Thank you, for taking the time to read this,

Answer 1

Could be the common problem of developing on windows, hosting on Linux. Windows doesn't care about the case of the filename, Linux does. I'd have a check through any widgets you've written or are including and any custom package definitions you have. Just ensure the case is correct.

Answer 2

Well I added this to the Index.php in order to hide warnings...very dirty in my POV
ini_set('error_reporting', E_NOTICE);
and the problem dissolved, still I can't comprehend what was happening!