Node / Express: EADDRINUSE, Address already in use – Kill server

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I have a simple server running in node.js using connect:

var server = require('connect').createServer();
//actions...
server.listen(3000);

In my code I have actual handlers, but thats the basic idea. The problem I keep getting is

EADDRINUSE, Address already in use

I receive this error when running my application again after it previously crashed or errors. Since I am not opening a new instance of terminal I close out the process with ctr + z.

I am fairly certain all I have to do is close out the server or connection. I tried calling server.close() in process.on('exit', ...); with no luck.

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