GWT Developer mode quietly failing

I got this error message starting GWT dev server but no exception in the dev mode console.

"Plugin failed to connect to development mode server at localhost:9997"

It had been running fine last time I debugged my GWT stuff so why not now?

In the end I had old App Engine jars in my class path after upgrading to the latest and greatest.

In summary: check your app classpath and also your WEB-INF/lib folders for older versions still hanging about.

We have Citikey!

Just launched the new version of Citikey a free business listing service for the UK.

www.citikey.co.uk

Its built using the Google stack: Google App Engine, Google Web Toolkit, Google Maps.

com.google.api.client.http.HttpResponseException: 400 Bad Request

I got this error message trying to log into Google App Engine using the Eclipse plugin.  I think the error can occur with any Google API that uses OAuth.

com.google.api.client.http.HttpResponseException: 400 Bad Request

The solution was to correct my system clock.  The time had become incorrect for some weird Windows reason (time to go back to using a mac) and adjusting it fixed the problem.