Feature id not assigned when saving a list as a template

Symptoms

After saving a list as a template, the file created in the template gallery does not have a feature ID or product version associated with it. Also, when using the create new list dialog, the list template is not available as an option.

Cause

This can be caused by having the 'ParserEnabled' property on the SPWeb set to 'false'.

Resolution

Use PowerShell to enable the 'ParserEnabled' property for the web site:

$web = Get-SPWeb <url of web>  
$web.ParserEnabled = $true  
$web.Update()  

More Information

Document Property Promotion and Demotion