“Unknown version of Tomcat was specified” error when adding Tomcat server for Eclipse EE
Download Eclipse EE and Tomcat
Open Eclipse EE
File -> New -> Dynamic Web Project -> you see another window for the project details
Project Name -> write name you want
Target Runtime -> click New Runtime -> Seek your Tomcat, for example:
Click Download and Install -> Accept the license -> Finish
Go to the /home/poganin/apache-tomcat-7.0.41/bin/bin -> click OK.
Now look at your Eclipse – you see the process of the Tomcat installation in the bottom right corner (in percent)
When Tomcat is installed, click Finish. Now click Next -> You can configure your project -> Finish.
Now you should have your project ready to work in Eclipse with using Tomcat server.
The problem with the error
“Unknown version of Tomcat was specified”
is caused by not finishing installing Tomcat server in Eclipse. Be patient and look at the bottom right corner of Eclipse. The Installation bar is going and should be finished up before you do something else.