Running CAI from the Eclipse Workspace

Hi,
I have the cai Application Designer installed in a Project in my Eclipse Workspace.
It starts up nicely and I can access it using the URL:
http://localhost:51000/OAPGui/HTMLBasedGUI/workplace/ide.html

Now I want to create a new CAI Project so that I can design my Pages.
When I go to the ProjectManager in order to do so and create a new Project I receive the following error:

20070116/132021/769 I CASA1_1168950002735… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): Uses gzip compression as content encoding.
20070116/132021/769 I CASA1_1168950002735… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): Request consumed 47ms on the server.
20070116/132024/300 I http-51000-Processor25… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): Character encoding is null
20070116/132024/300 I http-51000-Processor25… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): SESSIONID CASA1_1168950002735
20070116/132024/300 I http-51000-Processor25… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): SESSIONID null
20070116/132024/300 I http-51000-Processor25… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): Request to be processed
20070116/132024/300 I CASA1_1168950002735… CIS .server.Connector.doPost(Unknown Source) Connector.doPost(): STAMP value = 1006
20070116/132024/300 I CASA1_1168950002735… CIS .XMLProcessor.processXML(Unknown Source) XMLProcessor.proecssXML(): ==========>
20070116/132024/300 I CASA1_1168950002735… CIS .XMLProcessor.processXML(Unknown Source) XMLProcessor.processXML(): incoming request with length 246
20070116/132024/300 I CASA1_1168950002735… CIS .XMLProcessor.processXML(Unknown Source) XMLProcessor.processXML(): first 100 chars: v1903004109084000135CASA1_1168950002735103com.softwareag.cis.edit.ProjectMgrAdapterCIS_TOOLShttp://l
20070116/132024/300 I CASA1_1168950002735… CIS .XMLProcessor.processXML(Unknown Source) XMLProcessor.processXML(): the method to be invoked is: createProject
20070116/132024/316 I CASA1_1168950002735… CIS ed.XMLDataReference.init(Unknown Source) XMLData: Reading resource /HTMLBasedGUI//xmldata/default/com.softwareag.cis.edit.ProjectMgrAdapter.xml
20070116/132024/316 I CASA1_1168950002735… CIS .readTextFileIntoStrings(Unknown Source) WebResourceReader.readTextFileIntoStrings: /HTMLBasedGUI//xmldata/default/com.softwareag.cis.edit.ProjectMgrAdapter.xml
20070116/132024/316 >>>>>>>>>> EXCEPTION OCCURED: <<<<<<<<<<
20070116/132024/316 java.lang.Error: Could not read resource path /HTMLBasedGUI//xmldata/default/com.softwareag.cis.edit.ProjectMgrAdapter.xml
20070116/132024/331 >>>>>>>>>> Stacktrace <<<<<<<<<<
20070116/132024/331 java.lang.Error: Could not read resource path /HTMLBasedGUI//xmldata/default/com.softwareag.cis.edit.ProjectMgrAdapter.xml
at com.softwareag.cis.server.util.WebResourceReader.readTextFileIntoStrings(Unknown Source)
at com.softwareag.cis.server.util.WebResourceReader.readTextFileIntoStrings(Unknown Source)
at com.softwareag.cis.xmldata.filebased.XMLDataReference.init(Unknown Source)
at com.softwareag.cis.xmldata.filebased.XMLDataManager.a(Unknown Source)
at com.softwareag.cis.xmldata.filebased.XMLDataManager.findXMLData(Unknown Source)
at com.softwareag.cis.server.InteractionModel.appendData(Unknown Source)
at com.softwareag.cis.server.InteractionModel.a(Unknown Source)
at com.softwareag.cis.server.InteractionModel.getDataAsXML(Unknown Source)
at com.softwareag.cis.server.XMLProcessor.processXML(Unknown Source)
at com.softwareag.cis.server.Connector.doPost(Unknown Source)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:709)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:802)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:252)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:173)
at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:213)
at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:178)
at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:126)
at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:105)
at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:107)
at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:148)
at org.apache.coyote.http11.Http11Processor.process(Http11Processor.java:856)
at org.apache.coyote.http11.Http11Protocol$Http11ConnectionHandler.processConnection(Http11Protocol.java:744)
at org.apache.tomcat.util.net.PoolTcpEndpoint.processSocket(PoolTcpEndpoint.java:527)
at org.apache.tomcat.util.net.LeaderFollowerWorkerThread.runIt(LeaderFollowerWorkerThread.java:80)
at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:684)
at java.lang.Thread.run(Thread.java:568)

Does anybody know which configuration did I miss?

Best regards and thanks,
Matthias

Well the answer is:
set the cai.home variable in the web.xml and it works!