Classic error: Unable to update index for central|http://repo1.maven.org/maven2

Question

I am facing a situation where my eclipse indigo is \"Unable to update index for central|http://repo1.maven.org/maven2\".

I am using an external Maven 3.

Answer 1

I had to update Maven Plugin. It was not working. (Help menu > Eclipse Marketplace > type Maven > click magnifying glass) > Select Maven Plugin > Update

And then Go to Window->Preferences->Maven and enable checkbox named “Download repository index updates on startup”.