Strange error message in Node.js
crash, express, node.js
Solution
Saw a similar question recently. You could be experiencing a similar issue. Perhaps one of the libraries you are using (or your own code) is trying to access `app.address().port` before the `app.listen` has completed and the corresponding callback has been invoked.
Problem
I've been getting a lot of strange error message lately, and now I can't even get app.js started. What could the following mean, and does anyone know how to solve it? ``` node.js:201 throw e; // process.nextTick error, or 'error' event on first tick ^ TypeError: Cannot read property 'port' of null at Object.<anonymous> (/Users/henrikpetersson81/node/last/test4/app.js:15:64) at Module._compile (module.js:441:26) at Object..js (module.js:459:10) at Module.load (module.js:348:31) at Function._load (module.js:308:12) at Array.0 (module.js:479:10) at EventEmitter._tickCallback (node.js:192:40) ```