I am getting the same error with node 12.19.0
error terser@5.3.6: The engine “node” is incompatible with this module. Expected version “^10.0.0,^11.0.0,^12.0.0,>=14.0.0”. Got “12.19.0”
error Found incompatible module
This looks like contrary to the documentation. I chose to install the stable version instead of v.14 but still no luck.