Item Template for VSTemplate file - templates

Question

I'm trying to create VS Item Template that will allow adding .vstemplate files to project.
This is how my vsTemplate.vstemplate file currently looks:
<?xml version="1.0" encoding="utf-8"?>
<VSTemplate
xmlns:sdk="http://schemas.microsoft.com/developer/vstemplate-sdkextension/2010"
xmlns="http://schemas.microsoft.com/developer/vstemplate/2005"
Version="3.0.0"
Type="Item">
<TemplateData>
<Name>VS Item Template</Name>
<Icon>vsTemplate.ico</Icon>
<Description>VS Item Template Files</Description>
<DefaultName>vsTemplate</DefaultName>
<ProjectType>CSharp</ProjectType>
<TemplateID>Microsoft.CSharp.Class</TemplateID>
<CreateInPlace>true</CreateInPlace>
</TemplateData>
<TemplateContent>
<ProjectItem TargetFileName="Template\$fileinputname$.vstemplate" ReplaceParameters="true">vsTemplate.data</ProjectItem>
<ProjectItem TargetFileName="Template\$fileinputname$.$fileinputextension$.data">vsTemplate.empty.data</ProjectItem>
<ProjectItem TargetFileName="Template\$fileinputname$.ico">vsTemplate.ico.data</ProjectItem>
</TemplateContent>
</VSTemplate>
When I am trying to use it (inside vs experimental instance), I am getting this error:
The system cannot find the file specified. (Exception from HRESULT: 0x80070002)
How I understand the problem, I need to specify custom build action for .vstemplate file inside .csproj file, something like this:
<VSTemplate Include"..."/>
But I don't know how to do that.
What I'am already tried:
set ItemType="VSTemplate" for vstemplate ProjectItem
use custom Wizard class
add /log option inside project command line argument window (it does not provide any additional information)