Due to Node 6’s End of Life, we’ve removed support for it in stencil-cli from version 1.16.0 and we’ll be working on phasing it out of other Stencil-related projects.

As of this writing, the only supported version of Node for use with stencil-cli is Node 8.1. Our documentation has been updated to reflect this.

We’re working on support for more recent versions of Node, and we’ll publish further updates when available.