Google Webmaster tools Blogger Blogspot fix for blogId and postId

Google Webmaster Tools error: Fix for Blogger Blogspot

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Extracted structured data: blogId and postId

Error: 

• Error: Page contains property "blogid" which is not part of the schema.
• Error: Page contains property "postid" which is not part of the schema.

In this case, the recommendation around the Internet is to delete the offending tags because they are not a part of the Blog, Blogpost, or Blogposting Schema.

Since these itemprop (s) do not exist, it seems like a reasonable thing to try.

Backup your template first!



In my template there were two instances of the following two lines of code....

    <meta expr:content='data:blog.blogId' itemprop='blogId'/>
    <meta expr:content='data:post.id' itemprop='postId'/>

Since I'm never in a hurry to delete anything, I commented (<!--  span lines  --> ) the offending meta tags in both occurrences.

<!--
    <meta expr:content='data:blog.blogId' itemprop='blogId'/>
    <meta expr:content='data:post.id' itemprop='postId'/>
-->

A check back with Google Webmaster Tools Rich Snippets, Structured Data Testing Tool  and my errors are now gone.

Note: It is not a good idea to leave HTML comments in your template because they cannot be nested. So, the final step is to delete the comments and the meta tags.  (Since I know you have a backup)

Source: 
(and hat tip to)
Brain of Computer blogspot