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I installed GeoServer 2.1 RC1. It installed successfully, but when i click on WFS in services category, i got the following message.

Oops, something went wrong... Sorry, something unexpected happened on the server.

Here's an error report you can include in a JIRA bug report about this issue:

org.apache.wicket.WicketRuntimeException: Can't instantiate page using constructor public org.geoserver.wfs.web.WFSAdminPage() at org.apache.wicket.session.DefaultPageFactory.createPage( at org.apache.wicket.session.DefaultPageFactory.newPage( at at at at org.apache.wicket.request.AbstractRequestCycleProcessor.processEvents( at org.apache.wicket.RequestCycle.processEventsAndRespond(

What is wrong ? How can i fix this problem ?

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You're unlikely to get any answers after asking 17 questions, getting 30 answers, and accepting none of them. It might be worth asking this on the GeoServer forum. – MerseyViking May 20 '11 at 13:18
plus you'll need more details, such as how did you install it? which servlet container are you using? etc. – iant May 20 '11 at 18:26
up vote 1 down vote accepted

I got this same error on the latest stable version. I found that my wfs.xml file had become empty somehow.

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I had a similar problem and found it was memory related; increasing the Java heap space fixed it for me. In C:\Program Files\GeoServer 2.1.0\wrapper\wrapper.conf I increased to 512. Maybe that helps!

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