grails compilation error - "package does not exist"

Question

I am new to grails and was following the trail by setting up a simple application with a helloWorld-Controller. After doing create-app and opening the interactive console, I am running into the following problem.

grails> create-controller projects | Compiling 10 source files. | Error Compilation error: startup failed: Compile error during compilation with javac. C:\dev\grails-2.3.5\timespent\target\work\plugins\tomcat-7.0.50\src\java\org\grails\plugins\tomcat\TomcatKillSwitch.java:3: error: package org.apache.catalina does not exist

import org.apache.catalina.LifecycleException;
                              ^ 
C:\dev\grails-2.3.5\timespent\target\work\plugins\tomcat-7.0.50\src\java\org\grails\plugins\tomcat\TomcatKillSwitch.java:4: error: package org.apache.catalina.startup does not exist 
import org.apache.catalina.startup.Tomcat;
                                      ^ 
C:\dev\grails-2.3.5\timespent\target\work\plugins\tomcat-7.0.50\src\java\org\grails\plugins\tomcat\TomcatKillSwitch.java:19: error: cannot find symbol
        private Tomcat tomcat;
                ^   
symbol:   class Tomcat   
location: class TomcatKillSwitch 
C:\dev\grails-2.3.5\timespent\target\work\plugins\tomcat-7.0.50\src\java\org\grails\plugins\tomcat\TomcatKillSwitch.java:22: error: cannot find symbol
        public TomcatKillSwitch(Tomcat tomcat, int serverPort) {
                                ^   
symbol:   class Tomcat
location: class TomcatKillSwitch 
C:\dev\grails-2.3.5\timespent\target\work\plugins\tomcat-7.0.50\src\java\org\grails\plugins\tomcat\TomcatKillSwitch.java:43: error: cannot find symbol
                    } catch (LifecycleException e) {
                             ^   
symbol:   class LifecycleException   
location: class TomcatKillSwitch 
5 errors


1 error | Error Error running script create-controller projects: org.codehaus.groovy.grails.cli.ScriptExitException (Use --stacktrace to see the full trace) grails>

I tried grails clean and grails refresh-dependencies compile but the error is still popping up.

The full stacktrace goes on a little more but there seems to be nothing significant in there.

There is more than one tomcat on my system, but as far as I can see grails uses a bundled tomcat.

Can anyone tell why javac fails? After all, it is a fresh install and it didn't do much yet except for loading dependencies.

Answer 1

Problem solved, see my comment above

add the tomcat as external jar in the eclipse project build path and delete the "target" folder in the project