Error information of the plugin All in One SEO Pack

in my time use wwordpress I knew plugin “All in One SEO Pack”, this is a pretty good plugin for a long time I though I did not notice the results of it, until one day I testedcheck the results of it and I have seen it not work. I fill the information (title, meta description, keyword) in that it did not appear to the outside as expected.

I finally know the reason why, the reason is very simple. In the code I have declared 2 description and keyword tag, I declare as follows:

 

I think the parameters will be passed through the 2 php variables above, but really it is not so, this plugin works in the following way: it will test two existing meta tag in the output or not,if one already exists it will not export the information that we have entered in management posts.

So when using this plugin to remove two lines declare the two meta tags.

A small personal experience would be helpful for someone to look at this article.