Standard Parts Piping library not working

[ Edited ]

Dear Members,


I have just installed the standard parts of machinery and piping libraries. My problem is that although the machinery library works well, but not the piping library. I can see the piping library element in Standard parts (see the figure), but I cannot place them into the model. I have installed both of them into the same folder, and imported that folder into administrator.

Any suggestion?StdPartsPipingerror.jpg