nevermind I just opened it through sfm's source skd thank guys
You shouldn't use that one. Its three compilers (VBSP, VVIS & VRAD) are outdated and IIRC it used to give me troubles with a map in both SFM and TF2 that TF2's Hammer didn't.
Here's what you have to do to compile a map: save your work as .VMF whenever you want through "File>Save" or "Save as...", and then "File>Run" (which will open up a window that the 'F9' button should've opened for you before), then set all the modes to "Normal" and compile the map. It may take a while depending on your map, and while it's compiling, the window is likely to appear stuck (if you are using a Windows OS, it will say "(not responding)", but it's just because it's busy compiling. Once completed, you will be able to scroll the window (or it may just disappear, but clicking on the Tile Bar (top window bar) will bring it back). Then simply navigate to the .VMF's directory and copy your .BSP into TF2's "maps" folder, although it's usually copied automatically once Hammer starts compiling.