问题:

I installed Eclipse Kepler in my system. so far I developed J2SE Applications. Now I want to develop J2EE Application.So I need to add WTP in my eclipse.

I tried to add WTP in already existing eclipse.For this

I open Install Dialog in the following way.and mention Name and Location values

 Help-->Install New Software-->Add

after that, I click on

 Ok-->Select All-->Next-->Next-->

I got error like this.

Why I am getting error?How can I fix this?

Thanks.

回答1:

Use the Kepler site. The URL you're using is not supposed to be used any more (the timestamps you see are very old). http://wiki.eclipse.org/WTP_FAQ#How_do_I_install_WTP.3F

回答2:

I had the same problem and did this:

Click "Help" > "Install new software"
In "Work with", paste: http://download.eclipse.org/releases/kepler
In "Web, XML, Java EE and OSGi Enterprise Development", check:
- Eclipse Java EE Developer Tools
- Eclipse Java Web Developer Tools
- Eclipse Web Developer Tools
- Eclipse XML Editors and Tools
Finally, click "Next" to install the new software and "Dynamic Web Project" will be available.

回答3:

It's happened because you have already installed this package as i understand. So you just need to uncheck "Path feature for tests" at previous window.

p.s.: sorry for my english, i'm from Ukraine and i study english now.