plugin failed to connect to development mode server at 127.0.0.1

Question

I am using GWT 2.3.0 as a plugin for Eclipse to develop a web based application

Unfortunately, when I try to run my application I get:

plugin failed to connect to developer mode server at 127.0.0.1:9997

and

onModuleLoad() threw an exception :java.lang.reflect.InvocationTargetException

I have installed the Gwt developer plugin for Google Chrome and every time I run my project it requires me to install this plugin and restart the browser, after which I get the above mentioned problem.

Answer 1

You can solve this issue by:

1. Right click on your web project -> Run as -> Run configurations.

2. Select 'Server' and 'GWT' tabs respectively and check on 'Automatically select an unused port'

3. Clear Cache from your Chrome browser (do the same on Firefox if you are using Firefox, remember the GWT plugin is not available on the latest Firefox versions, 3-10 I believe).

4. Run and hopefully enjoy.