My Hammer is doing bad things to me D: It doesnt create a .BSP file when I save it. (VBSP is the command-line tool that converts a raw VMF file to the compiled Binary Space Partition format) I've tried everything but it just doesnt save it. So? That means that I cannot play the map I can only create it with hammer. The BSP file is same stuff as all Gmod maps. Any answers? And I have seen this: The system cannot find the file specified Be sure you typed your filename correctly, excluding any dashes, periods, etc. If it persists, try typing the file extension as you save it. If compiling with Hammer, check the log for errors; it often will point you in the right direction. If you have not ran the game that you are making a map for, or if the destination that you are trying to place the final .BSP file in does not exist at the time you attempted to compile your map, this error will occur as a result of Hammer lacking the ability to create file folders. This happens to a variety of people, most often when the person receiving the error has recently rebooted their computer after a crash, their computer dying, or a virus or other possible cause of computer data/memory loss. If this happens, all you have to do is run the game you are making the map for, or simply browse to the closest file directory to the one you are trying to put the final .BSP in a file browser, and make a folder named the same as the selected output folder.