Hi
I'm trying to create a virtual wiki with XEM, but when I click on "Create" I
get following exception.
I installed 
xwiki-plugin-application-manager-1.0-milestone-1.jar
xwiki-plugin-wiki-manager-1.0-milestone-1.jar
xwiki-application-wiki-manager-1.0-milestone-1.xar

All fields have value but wikimanager.wikitemplate and
wikimanager.wikipackage have empty list. Is it right?

This is the stack:

Error number 4001 in 4: Error while parsing velocity page
WikiManager.CreateNewWiki
Wrapped Exception: Invocation of method 'createNewWiki' in  class
com.xpn.xwiki.plugin.wikimanager.WikiManagerPluginApi threw exception
java.lang.NullPointerException @ WikiManager.CreateNewWiki25,31?
com.xpn.xwiki.XWikiException: Error number 4001 in 4: Error while parsing
velocity page WikiManager.CreateNewWiki
Wrapped Exception: Invocation of method 'createNewWiki' in  class
com.xpn.xwiki.plugin.wikimanager.WikiManagerPluginApi threw exception
java.lang.NullPointerException @ WikiManager.CreateNewWiki25,31?
        at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:148)
        at
com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer.java:91)
        at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:222)
        at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:154)
        at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:125)
        at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderDocument(DefaultXWikiRenderingEngine.java:117)
        at
com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:401)
        at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:347)
        at sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:295)
        at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:245)
        at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:203)
        at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:294)
        at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
        at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:240)
        at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:143)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1275)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1244)
        at com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:552)
        at sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source)
        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
        at java.lang.reflect.Method.invoke(Method.java:585)
        at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:295)
        at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:245)
        at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:203)
        at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:294)
        at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
        at
org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:194)
        at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
        at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
        at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
        at
org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
        at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
        at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
        at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
        at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:240)
        at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:143)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1275)
        at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1244)
        at com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:94)
        at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:157)
        at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
        at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
        at 
org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
        at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:596)
        at javax.servlet.http.HttpServlet.service(HttpServlet.java:689)
        at 
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428)
        at
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)
        at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117)
        at
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
        at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)
        at 
org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1565)
        at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
        at org.mortbay.http.HttpContext.handle(HttpContext.java:1517)
        at org.mortbay.http.HttpServer.service(HttpServer.java:954)
        at org.mortbay.http.HttpConnection.service(HttpConnection.java:816)
        at org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983)
        at org.mortbay.http.HttpConnection.handle(HttpConnection.java:833)
        at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244)
        at org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357)
        at org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)

Wrapped Exception:

java.lang.NullPointerException at
com.xpn.xwiki.plugin.wikimanager.WikiManager.createNewWiki(WikiManager.java:267)
at
com.xpn.xwiki.plugin.wikimanager.WikiManager.createNewWiki(WikiManager.java:189)
at
com.xpn.xwiki.plugin.wikimanager.WikiManagerPluginApi.createNewWiki(WikiManagerPluginApi.java:92)
at
com.xpn.xwiki.plugin.wikimanager.WikiManagerPluginApi.createNewWiki(WikiManagerPluginApi.java:69)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585) at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:295)
at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:245)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:203)
at
org.apache.velocity.runtime.parser.node.ASTReference.value(ASTReference.java:419)
at
org.apache.velocity.runtime.parser.node.ASTExpression.value(ASTExpression.java:73)
at
org.apache.velocity.runtime.parser.node.ASTSetDirective.render(ASTSetDirective.java:125)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:240)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:143)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.render(XWikiVelocityRenderer.java:91)
at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:222)
at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:154)
at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderText(DefaultXWikiRenderingEngine.java:125)
at
com.xpn.xwiki.render.DefaultXWikiRenderingEngine.renderDocument(DefaultXWikiRenderingEngine.java:117)
at
com.xpn.xwiki.doc.XWikiDocument.getRenderedContent(XWikiDocument.java:401)
at com.xpn.xwiki.api.Document.getRenderedContent(Document.java:347) at
sun.reflect.GeneratedMethodAccessor103.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585) at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:295)
at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:245)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:203)
at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:294)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:240)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:143)
at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1275) at
com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1244) at
com.xpn.xwiki.api.XWiki.parseTemplate(XWiki.java:552) at
sun.reflect.GeneratedMethodAccessor15.invoke(Unknown Source) at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:585) at
org.apache.velocity.util.introspection.UberspectImpl$VelMethodImpl.invoke(UberspectImpl.java:295)
at
org.apache.velocity.runtime.parser.node.ASTMethod.execute(ASTMethod.java:245)
at
org.apache.velocity.runtime.parser.node.ASTReference.execute(ASTReference.java:203)
at
org.apache.velocity.runtime.parser.node.ASTReference.render(ASTReference.java:294)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
org.apache.velocity.runtime.directive.VelocimacroProxy.render(VelocimacroProxy.java:194)
at
org.apache.velocity.runtime.parser.node.ASTDirective.render(ASTDirective.java:170)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:88)
at org.apache.velocity.runtime.parser.node.ASTBlock.render(ASTBlock.java:74)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
org.apache.velocity.runtime.parser.node.ASTIfStatement.render(ASTIfStatement.java:107)
at
org.apache.velocity.runtime.parser.node.SimpleNode.render(SimpleNode.java:318)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:240)
at
com.xpn.xwiki.render.XWikiVelocityRenderer.evaluate(XWikiVelocityRenderer.java:143)
at com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1275) at
com.xpn.xwiki.XWiki.parseTemplate(XWiki.java:1244) at
com.xpn.xwiki.web.Utils.parseTemplate(Utils.java:94) at
com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:157) at
org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431)
at
org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236)
at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196)
at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:596) at
javax.servlet.http.HttpServlet.service(HttpServlet.java:689) at
org.mortbay.jetty.servlet.ServletHolder.handle(ServletHolder.java:428) at
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:830)
at
com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117)
at
org.mortbay.jetty.servlet.WebApplicationHandler$CachedChain.doFilter(WebApplicationHandler.java:821)
at
org.mortbay.jetty.servlet.WebApplicationHandler.dispatch(WebApplicationHandler.java:471)
at org.mortbay.jetty.servlet.ServletHandler.handle(ServletHandler.java:568)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1565) at
org.mortbay.jetty.servlet.WebApplicationContext.handle(WebApplicationContext.java:633)
at org.mortbay.http.HttpContext.handle(HttpContext.java:1517) at
org.mortbay.http.HttpServer.service(HttpServer.java:954) at
org.mortbay.http.HttpConnection.service(HttpConnection.java:816) at
org.mortbay.http.HttpConnection.handleNext(HttpConnection.java:983) at
org.mortbay.http.HttpConnection.handle(HttpConnection.java:833) at
org.mortbay.http.SocketListener.handleConnection(SocketListener.java:244) at
org.mortbay.util.ThreadedServer.handle(ThreadedServer.java:357) at
org.mortbay.util.ThreadPool$PoolThread.run(ThreadPool.java:534)
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