If In the rich snippets tool of google webmaster tools user get an error related to blogid and post id. Given below are some examples:
Error: Page contains property "blogid" which is not part of the schema.
Error: Page contains property "postid" which is not part of the schema.
For fixing this errors you can delete these codes from your blog template.
For deleting this codes follow the above steps:
Make backup of your template.
Go into your template code.
search for below codes and delete them from the entire template and save the template..
<meta expr:content='data:blog.blogId' itemprop='blogId'/>
<meta expr:content='data:post.id' itemprop='postId'/>
After deleting these codes from your blog template you can check your structured data in rich snippets tool. If you still get the same error then try deleting all the codes given above from your blogger template. You can re check this here Rich Snippet testing tool.