The Cake web site generator used to have an issue with YAML files that did not have a ProjectUrl and therefore AddinDiscoverer does not generate yaml files for addins that do not have this value in their package nuspec.
However, @pascalberger confirmed that this problem has been taken care of which means that we can generate yaml for addins even if their ProjectUrl is missing.
The Cake web site generator used to have an issue with YAML files that did not have a ProjectUrl and therefore AddinDiscoverer does not generate yaml files for addins that do not have this value in their package nuspec.
However, @pascalberger confirmed that this problem has been taken care of which means that we can generate yaml for addins even if their ProjectUrl is missing.