Can't import assets by drag and drop

I can’t import assets by dragging and dropping them in asset list. when i bring the mouse over there it turns red(the invalid cursor icon)

It could be cocos creator couldn’t add/remove files at the project location?

Can you provide more information? Where did you save your project and what files you were trying to import?

The Project files were in a different drive than the drive that contains the operating system and cocos…
this happened to all kinds of files scripts, sprites… but i could manually copy the sprites to the asset folder using windows explorer and after that it showed in the editor… but couldn’t import them by dragging directly in the asset list in editor

Try running Cocos Creator as an admin.
I think Cocos Creator didn’t have permission at the destination folder.

I always run as an admin but it still doesn’t work