SoapUI project on linux

I tried running a soapui project (mock service) that I created on Windows, on a linux server and got the following error.

I fixed all the paths. Any ideas?
java.lang.NullPointerException

        at com.eviware.soapui.impl.support.definition.support.InterfaceCacheDefinitionLoader.(InterfaceCacheDefinitionLoader.java:39)

        at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.createDefinitionLoader(WsdlContext.java:55)

        at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.createDefinitionLoader(WsdlContext.java:30)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.cacheDefinition(AbstractDefinitionContext.java:260)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.access$400(AbstractDefinitionContext.java:44)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext$Loader.construct(AbstractDefinitionContext.java:228)

        at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:45)

        at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:111)

        at java.lang.Thread.run(Thread.java:619)

2009-09-04 10:16:21,435 ERROR [errorlog] java.lang.Exception: java.lang.NullPointerException

java.lang.Exception: java.lang.NullPointerException

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.load(AbstractDefinitionContext.java:154)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.load(AbstractDefinitionContext.java:113)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.loadIfNecessary(AbstractDefinitionContext.java:89)

        at com.eviware.soapui.impl.wsdl.mock.WsdlMockRunner.(WsdlMockRunner.java:80)

        at com.eviware.soapui.impl.wsdl.mock.WsdlMockService.start(WsdlMockService.java:170)

        at com.eviware.soapui.impl.wsdl.mock.WsdlMockService.start(WsdlMockService.java:426)

        at com.eviware.soapui.tools.SoapUIMockServiceRunner.runMockService(SoapUIMockServiceRunner.java:182)

        at com.eviware.soapui.tools.SoapUIMockServiceRunner.runRunner(SoapUIMockServiceRunner.java:115)

        at com.eviware.soapui.tools.AbstractSoapUIRunner.run(AbstractSoapUIRunner.java:127)

        at com.eviware.soapui.tools.AbstractSoapUIRunner.runFromCommandLine(AbstractSoapUIRunner.java:72)

        at com.eviware.soapui.tools.SoapUIMockServiceRunner.main(SoapUIMockServiceRunner.java:61)

Caused by: java.lang.NullPointerException

        at com.eviware.soapui.impl.support.definition.support.InterfaceCacheDefinitionLoader.(InterfaceCacheDefinitionLoader.java:39)

        at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.createDefinitionLoader(WsdlContext.java:55)

        at com.eviware.soapui.impl.wsdl.support.wsdl.WsdlContext.createDefinitionLoader(WsdlContext.java:30)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.cacheDefinition(AbstractDefinitionContext.java:260)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext.access$400(AbstractDefinitionContext.java:44)

        at com.eviware.soapui.impl.support.definition.support.AbstractDefinitionContext$Loader.construct(AbstractDefinitionContext.java:228)

        at com.eviware.soapui.support.swing.SwingWorkerDelegator.construct(SwingWorkerDelegator.java:45)

        at com.eviware.soapui.support.swing.SwingWorker$2.run(SwingWorker.java:111)

        at java.lang.Thread.run(Thread.java:619)