How to named the referred assemblies correctly in multiple projects template

I tried to create a project template that loads multiple projects.

Example, In root.vstemplate:

 <ProjectCollection>
<ProjectTemplateLink ProjectName="$safeprojectname$.test1">
            Project.Test1\MyTemplate.vstemplate
        </ProjectTemplateLink>
<ProjectTemplateLink ProjectName="$safeprojectname$.Core">
            Project.Core\MyTemplate.vstemplate
        </ProjectTemplateLink>        
<ProjectTemplateLink ProjectName="$safeprojectname$.test2">
            Project.iOS\MyTemplate.vstemplate
        </ProjectTemplateLink>
<ProjectCollection>

I can load them after import .zip. However, the assemblies seems load the wrong namespace.

Example Project.test1 and Project.test2 loads assemblies from Project.Core

I confused which parameter that I need to use.

I already tried to use $safeprojectname$ or $projectname$ in each .csproj, but they still load incorrect result.
such as Project.test1.Core and Project.test2.Core.

How do I fix it?

Regards,