error 2

/usr/bin/perl ~/firefox-kde/src/mozilla-release/toolkit/mozapps/installer/xptlink.pl -s ../../dist -d ../../dist/xpt -f ../../dist/firefox//components -v -x "~/firefox-kde/src/mozilla-release/obj-x86_64-unknown-linux-gnu/_virtualenv/bin/python ~/firefox-kde/src/mozilla-release/obj-x86_64-unknown-linux-gnu/dist/sdk/bin/xpt.py link"
Error: destination directory "../../dist/xpt" is not a directory or is not writeable.
See '~/firefox-kde/src/mozilla-release/toolkit/mozapps/installer/xptlink.pl --help' for more information.

~/firefox-kde/src/mozilla-release/obj-x86_64-unknown-linux-gnu/dist/sdk/bin/xpt.py:
Error: -f is required at ~/firefox-kde/src/mozilla-release/toolkit/mozapps/installer/xptlink.pl line 36.