make[1]: Entering directory `/cygdrive/d/mozilla_source/mozilla/netwerk/resources'
+++ making chrome /cygdrive/d/mozilla_source/mozilla/netwerk/resources => ../..
/dist/bin/chrome/comm.jar
+++ updating chrome ../../dist/bin/chrome/installed-chrome.txt
/cygdrive/d/mozilla_source/mozilla/config/make-jars.pl: Could not get lockfile /
cygdrive/d/mozilla_source/mozilla/dist/bin/chrome/installed-chrome.txt.lck.
Remove /cygdrive/d/mozilla_source/mozilla/dist/bin/chrome/installed-chrome.txt.l
ck to clear up
make[1]: *** [libs] Error 255
make[1]: Leaving directory `/cygdrive/d/mozilla_source/mozilla/netwerk/resources'