I am a newbie at wp theme developing, this is the first time. But i cant use media library, when i try to upload an image to the post, it says:"An error occurred in the upload. Please try again later.".
I am able to add images via URL and i can see uploaded images later on media library. But cant attach them to the posts or cant use featured images.
I tried to switching back to Twenty Eleven and everything works well but i want to use Media Library with my theme. Please help me to figure it out, thanks.