hello,
my report is published on the server, when I want to execute my xaction the following message I thank you for helping me
The Pentaho BI Platform reported an error while running an action sequence


Possible Causes:
RuntimeContext.ERROR_0017 - [fr_18] Activity failed to execute
Execution Stack:
EXECUTING ACTION: (org.pentaho.platform.engine.services.solution.PojoComponent)
Error Type:ActionExecutionException
Session
Instance Id:7f93c1c7-0cd3-11e4-93f2-09a83f4f6593


Action Classrg.pentaho.platform.engine.services.solution.PojoComponent
Action Description:
Hide Details
Stack Trace:
org.pentaho.platform.api.engine.ActionExecutionException: RuntimeContext.ERROR_0017 - [fr_18] Activity failed to execute
at org.pentaho.platform.engine.services.runtime.RuntimeContext.executeComponent(RuntimeContext.java:1325)
at org.pentaho.platform.engine.services.runtime.RuntimeContext.executeAction(RuntimeContext.java:1262)
at org.pentaho.platform.engine.services.runtime.RuntimeContext.performActions(RuntimeContext.java:1161)
at org.pentaho.platform.engine.services.runtime.RuntimeContext.executeLoop(RuntimeContext.java:1105)
at org.pentaho.platform.engine.services.runtime.RuntimeContext.executeSequence(RuntimeContext.java:987)
at org.pentaho.platform.engine.services.runtime.RuntimeContext.executeSequence(RuntimeContext.java:897)
at org.pentaho.platform.engine.services.solution.SolutionEngine.executeInternal(SolutionEngine.java:399)
at org.pentaho.platform.engine.services.solution.SolutionEngine.execute(SolutionEngine.java:317)
at org.pentaho.platform.engine.services.solution.SolutionEngine.execute(SolutionEngine.java:193)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at com.pentaho.platform.web.http.context.WebSpringPentahoObjectFactory$a.invoke(SourceFile:255)
at $Proxy15.execute(Unknown Source)
at org.pentaho.platform.engine.services.BaseRequestHandler.handleActionRequest(BaseRequestHandler.java:159)
at org.pentaho.platform.web.servlet.ViewAction.handleActionRequest(ViewAction.java:167)
at org.pentaho.platform.web.servlet.ViewAction.doGet(ViewAction.java:316)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:617)
at javax.servlet.http.HttpServlet.service(HttpServlet.java:717)
at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290)
at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206)