bugfix: mkdir will throw if the path already exists
bugfix: mkdir will throw if the path already exists

BugTesterTest/desktops,j-f1/forked-desktop,say25/desktop,artivilla/desktop,shiftkey/desktop,desktop/desktop,kactus-io/kactus,gengjiawen/desktop,kactus-io/kactus,BugTesterTest/desktops,gengjiawen/desktop,say25/desktop,hjobrien/desktop,artivilla/desktop,say25/desktop,j-f1/forked-desktop,shiftkey/desktop,artivilla/desktop,shiftkey/desktop,desktop/desktop,BugTesterTest/desktops,shiftkey/desktop,desktop/desktop,desktop/desktop,kactus-io/kactus,say25/desktop,hjobrien/desktop,artivilla/desktop,hjobrien/desktop,j-f1/forked-desktop,j-f1/forked-desktop,gengjiawen/desktop,BugTesterTest/desktops,kactus-io/kactus,gengjiawen/desktop,hjobrien/desktop