im working on a little analyses drawing but im stuck with trimming some lines. Im drawing infrastructure with a circle over it to specify a location of intrest. But i need to cut the lines (drawn with the pen tool) to the contour of the circle. (i know its weird what im saying lol, please look at the pictures). Im using pathfinder tool and it worked the first time (see picture) but now it wont.
Am i doing it wrong?
Picture 1 is what i need to do, the circle cutting of the paths so its only colored in the circle
Picture 2 is what i need to cut
picture 3 is the message i get
Sorry for bad English, its not my native language ;)