I am at NWDS 7.31 EHp1 SP6.
Iam not able to assign UI webdynpro components to tasks in BPM.
iam getting following error. please help
"BPM.bp.000003" BC-BMT-BPM-SRV com.sap.tc.glx.BpemTask execute() - Exception during constraint check of tasks. Check Your model for problems.caused by nullat com.sap.tc.glx.BpemTask.constraintCheck(BpemTask.java:521)
at com.sap.tc.glx.BpemTask.constraintCheck(BpemTask.java:459)
at com.sap.tc.glx.BpemTask.execute(BpemTask.java:205)
at org.apache.tools.ant.UnknownElement.execute(UnknownElement.java:288)
at sun.reflect.GeneratedMethodAccessor130.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
at java.lang.reflect.Method.invoke(Method.java:597)
at org.apache.tools.ant.dispatch.DispatchUtils.execute(DispatchUtils.java:106)
at org.apache.tools.ant.Task.perform(Task.java:348)
at org.apache.tools.ant.Target.execute(Target.java:357)
at org.apache.tools.ant.Target.performTasks(Target.java:385)
at org.apache.tools.ant.Project.executeSortedTargets(Project.java:1337)
at org.apache.tools.ant.Project.executeTarget(Project.java:1306)
at com.sap.tc.buildplugin.ant.util.AntRunner.run(AntRunner.java:115)
at com.sap.tc.buildplugin.DefaultAntBuildAction.execute(DefaultAntBuildAction.java:53)
at com.sap.tc.buildplugin.DefaultPlugin.processSequence(DefaultPlugin.java:235)
at com.sap.tc.buildplugin.DefaultPlugin.handleBuildStepSequence(DefaultPlugin.java:174)
at com.sap.tc.buildplugin.DefaultPlugin.performBuild(DefaultPlugin.java:165)
at com.sap.tc.buildplugin.DefaultPluginV3Delegate$BuildRequestHandler.handle(DefaultPluginV3Delegate.java:66)
at com.sap.tc.buildplugin.DefaultPluginV3Delegate.requestV3(DefaultPluginV3Delegate.java:48)
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:597)
at com.sap.tc.buildtool.v2.impl.PluginHandler2.maybeInvoke(PluginHandler2.java:403)
at com.sap.tc.buildtool.v2.impl.PluginHandler2.request(PluginHandler2.java:149)
at com.sap.tc.buildtool.v2.impl.PluginHandler2.build(PluginHandler2.java:87)
at com.sap.tc.buildtool.PluginHandler2Wrapper.execute(PluginHandler2Wrapper.java:59)
at com.sap.tc.devconf.internal.DCProxyMake.make(DCProxyMake.java:276)
at com.sap.tc.devconf.internal.DCProxy.make(DCProxy.java:1459)
at com.sap.tc.devconf.internal.DCProxy.make(DCProxy.java:1441)
at com.sap.tc.devconf.internal.DCProxy.make(DCProxy.java:3927)
at com.sap.ide.dii08.internal.commandz.BuildDcsCommand.build(BuildDcsCommand.java:337)
at com.sap.ide.dii08.internal.commandz.BuildDcsCommand.execute(BuildDcsCommand.java:179)
at com.sap.ide.dii08.internal.service.CommandExecutor$2.run(CommandExecutor.java:77)
at org.eclipse.core.internal.resources.Workspace.run(Workspace.java:1800)
at com.sap.ide.dii05.util.internal.lock.DiiConsistencyServiceImpl.executeConsistentWorkspaceRunnable(DiiConsistencyServiceImpl.java:90)
at com.sap.ide.dii05.util.internal.lock.DiiConsistencyServiceImpl.executeConsistentWorkspaceRunnable(DiiConsistencyServiceImpl.java:52)
at com.sap.ide.dii08.internal.service.CommandExecutor.executeInWorkspaceAndDevConfLocks(CommandExecutor.java:90)
at com.sap.ide.dii08.internal.service.InternalDiiCommandService.buildDcs(InternalDiiCommandService.java:179)
at com.sap.ide.dii08.internal.service.InternalDiiCommandService.buildDcs(InternalDiiCommandService.java:986)
at com.sap.ide.dii05.ui.internal.actions.dc.BuildAction$2.run(BuildAction.java:193)
at org.eclipse.core.internal.jobs.Worker.run(Worker.java:55)
[Error: com.sap.tc.buildplugin.DefaultPlugin Thread[Worker-6,5,main]]