Changed robots.tex but from then Search Engines are not indexing blog's post. Help!!!

I have created a blog and using Wordpress on there. Just 1 page was crawled and I changed my theme. But I don't know why the robots.txt file was changed automatically. It looks like:

User-agent: *
Disallow: /


However later i changed my robots.txt file as:

User-agent: *
Disallow:

It is the correct format of allowing all of the robots I think.

But the sad things is that......though i have added lots of pages and posts on my blog; none of the posts are indexing. It is worth-mentioning that i have changed this just 1 day before.

So my question is that how long will the Search Engines take time to be acquainted of my changed robots.txt?

Is there any wrong else?

Help.

 

You need to add something like this:

Disallow: /yourblog/wp-content/plugins

That's all.

 

You need to wait till Google re-crawls your robots.txt file