上传图片时出错

I am using Fuel PHP framework and QQFileUpload to upload files. When I am uploading images, the file gets uploaded but I get an error. The images won`t show up on the website. Any ideas?

Here is the error message I am getting:

ErrorException [ Compile Error ]: Access level to SmartImage\SmartImage_Gd::create_transparent_image() must be protected (as in class Fuel\Core\Image_Gd) or weaker

mybe you need good img to upload it , try using photoshop and make any img if upload done then you have bad img format

This error suggests you have extended the Image_Gd class. In that class, the create_transparent_image() method is defined as protected. If you overload it, you must also define it as protected, or define it as public (which is weaker). This error suggests it is defined as private?