If you try to generate the package, you will get the following error:

[4mRunning "sass:dist" (sass) task[24m
[33mWarning: Path must be a string. Received undefined Use --force to continue.[39m

[31mAborted due to warnings.[39m

npm ERR! Linux 3.13.0-86-generic
npm ERR! argv "/usr/bin/node" "/bin/npm" "run" "build"
npm ERR! node v6.10.1
npm ERR! npm v3.10.10
npm ERR! code ELIFECYCLE
npm ERR! botmattermost@ build: `grunt build`
npm ERR! Exit status 3
npm ERR!
npm ERR! Failed at the botmattermost@ build script 'grunt build'.
npm ERR! Make sure you have the latest version of node.js and npm installed.
npm ERR! If you do, this is most likely a problem with the botmattermost package,
npm ERR! not with npm itself.
npm ERR! Tell the author that this fails on your system:
npm ERR! grunt build
npm ERR! You can get information on how to open an issue for this project with:
npm ERR! npm bugs botmattermost
npm ERR! Or if that isn't available, you can get their info via:
npm ERR! npm owner ls botmattermost
npm ERR! There is likely additional logging output above.

npm ERR! Please include the following file with any support request:
npm ERR! /build/rpmbuild/BUILD/tuleap-plugin-botmattermost-0.2.0/npm-debug.log
error: Bad exit status from /var/tmp/rpm-tmp.cQ7Krq (%build)


RPM build errors:
Bad exit status from /var/tmp/rpm-tmp.cQ7Krq (%build)
make[1]: *** [/build/rpmbuild/RPMS/noarch/tuleap-plugin-botmattermost-0.2.0-3.el6.noarch.rpm] Error 1


Issue has been introduced by commit 2ec467db0ed05795810dcdf3a44af1e930c05dea