A month ago, a client asked me to build Hybris 6.3 on his Windows 10 laptop to demo the new 6.3 functionality. Since this was a local machine, I decided to install Hybris using the B2C Acclerator. Pretty harmless, right?.
I ran the following install script from his command prompt:
install.bat -r b2c_acc initialize
However, my build failed when loading the grunt-karma.js task.
I did some research, and learned that there was a conflict with my client's local version of NodeJs/NPM. I removed the existing C:\Program Files\nodejs from my client's PATH environment variables list, and this resolved the issue.