"The "path" argument must be of type string."

When building app with aot, I'm getting this warning at Ivy compatibility compilation phase.

> Warning: Unable to fully load /Users/fxck/www/zeropsmonorepo/node_modules/ngx-timeago/bundles/ngx-timeago.umd.js for source-map flattening: The "path" argument must be of type string. Received type object