Error adding new item

[systech]

There, i got a problem adding a new item.

 

I add it in itemALL.lod

add it in itemname.lod

 

then when i open it to smc editor it says "cannot find the path to the folder" but the folder is correct, and it wont let me add it.

 

could someone explain me the steps to add new items? maybe i missed few steps, i dont know.