# Error Printing Report

**URL:** <https://forum.inductiveautomation.com/t/error-printing-report/10902>\
**Category:** Ignition\
**Created:** [December 11, 2015, 4:03pm UTC](https://forum.inductiveautomation.com/t/error-printing-report/10902 "2015-12-11T16:03:26Z")\
**Posts on this page:** 3\
**Page:** 1

<div class="post-metadata">

**Author:** ![jreynolds](https://avatars.discourse-cdn.com/v4/letter/j/58956e/32.png) [@jreynolds](https://forum.inductiveautomation.com/u/jreynolds)\
**Post date:** [December 11, 2015, 4:03pm UTC](https://forum.inductiveautomation.com/t/error-printing-report/10902/1 "2015-12-11T16:03:26Z")

</div>

I’m getting an error when I run this script, it’s printing a report.

Code:

[code]report = event.source.parent.getComponent(‘Report Viewer’)  
report.print(None, 0)

timer = event.source.parent.getComponent(‘Timer’)  
timer.running = 1[/code]

Error:

[code]Traceback (most recent call last):  
File “event:actionPerformed”, line 2, in   
at com.inductiveautomation.reporting.components.ReportViewer.print(ReportViewer.java:1021)

```
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)

```

java.lang.NullPointerException: java.lang.NullPointerException

```
at org.python.core.Py.JavaError(Py.java:495)
at org.python.core.Py.JavaError(Py.java:488)
at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:188)
at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:204)
at org.python.core.PyObject. __call__ (PyObject.java:422)
at org.python.core.PyObject. __call__ (PyObject.java:426)
at org.python.core.PyMethod. __call__ (PyMethod.java:139)
at org.python.pycode._pyx7.f$0(<event:actionPerformed>:5)
at org.python.pycode._pyx7.call_function(<event:actionPerformed>)
at org.python.core.PyTableCode.call(PyTableCode.java:165)
at org.python.core.PyCode.call(PyCode.java:18)
at org.python.core.Py.runCode(Py.java:1275)
at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:624)
at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:583)
at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:170)
at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:265)
at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:55)
at com.sun.proxy.$Proxy20.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at javax.swing.AbstractButton.doClick(Unknown Source)
at com.inductiveautomation.factorypmi.application.components.PMIButton.doClick(PMIButton.java:68)
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 org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:186)
at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:204)
at org.python.core.PyObject. __call__ (PyObject.java:387)
at org.python.core.PyObject. __call__ (PyObject.java:391)
at org.python.core.PyMethod. __call__ (PyMethod.java:109)
at org.python.pycode._pyx6.f$0(<event:internalFrameActivated>:3)
at org.python.pycode._pyx6.call_function(<event:internalFrameActivated>)
at org.python.core.PyTableCode.call(PyTableCode.java:165)
at org.python.core.PyCode.call(PyCode.java:18)
at org.python.core.Py.runCode(Py.java:1275)
at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:624)
at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:168)
at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:265)
at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:55)
at com.sun.proxy.$Proxy21.internalFrameActivated(Unknown Source)
at javax.swing.JInternalFrame.fireInternalFrameEvent(Unknown Source)
at javax.swing.JInternalFrame.setSelected(Unknown Source)
at javax.swing.JInternalFrame.show(Unknown Source)
at java.awt.Component.show(Unknown Source)
at java.awt.Component.setVisible(Unknown Source)
at javax.swing.JComponent.setVisible(Unknown Source)
at com.inductiveautomation.factorypmi.application.FPMIApp$RuntimeWindowOpener.openWindow(FPMIApp.java:1786)
at com.inductiveautomation.factorypmi.application.FPMIApp.openWindow(FPMIApp.java:1018)
at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities$5.run(NavUtilities.java:437)
at com.inductiveautomation.factorypmi.application.script.builtin.WindowUtilities.doGUIAction(WindowUtilities.java:707)
at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.openWindowImpl(NavUtilities.java:375)
at com.inductiveautomation.factorypmi.application.script.builtin.NavUtilities.openWindow(NavUtilities.java:364)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at org.python.core.PyReflectedFunction. __call__ (PyReflectedFunction.java:186)
at com.inductiveautomation.ignition.common.script.ScriptManager$ReflectedInstanceFunction. __call__ (ScriptManager.java:428)
at org.python.core.PyObject. __call__ (PyObject.java:387)
at org.python.core.PyObject. __call__ (PyObject.java:391)
at org.python.pycode._pyx5.f$0(<event:actionPerformed>:7)
at org.python.pycode._pyx5.call_function(<event:actionPerformed>)
at org.python.core.PyTableCode.call(PyTableCode.java:165)
at org.python.core.PyCode.call(PyCode.java:18)
at org.python.core.Py.runCode(Py.java:1275)
at com.inductiveautomation.ignition.common.script.ScriptManager.runCode(ScriptManager.java:624)
at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.runActions(ActionAdapter.java:168)
at com.inductiveautomation.factorypmi.application.binding.action.ActionAdapter.invoke(ActionAdapter.java:265)
at com.inductiveautomation.factorypmi.application.binding.action.RelayInvocationHandler.invoke(RelayInvocationHandler.java:55)
at com.sun.proxy.$Proxy20.actionPerformed(Unknown Source)
at javax.swing.AbstractButton.fireActionPerformed(Unknown Source)
at javax.swing.AbstractButton$Handler.actionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.fireActionPerformed(Unknown Source)
at javax.swing.DefaultButtonModel.setPressed(Unknown Source)
at javax.swing.plaf.basic.BasicButtonListener.mouseReleased(Unknown Source)
at java.awt.Component.processMouseEvent(Unknown Source)
at javax.swing.JComponent.processMouseEvent(Unknown Source)
at java.awt.Component.processEvent(Unknown Source)
at java.awt.Container.processEvent(Unknown Source)
at java.awt.Component.dispatchEventImpl(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.LightweightDispatcher.retargetMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.processMouseEvent(Unknown Source)
at java.awt.LightweightDispatcher.dispatchEvent(Unknown Source)
at java.awt.Container.dispatchEventImpl(Unknown Source)
at java.awt.Window.dispatchEventImpl(Unknown Source)
at java.awt.Component.dispatchEvent(Unknown Source)
at java.awt.EventQueue.dispatchEventImpl(Unknown Source)
at java.awt.EventQueue.access$500(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.awt.EventQueue$3.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.awt.EventQueue$4.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.security.ProtectionDomain$JavaSecurityAccessImpl.doIntersectionPrivilege(Unknown Source)
at java.awt.EventQueue.dispatchEvent(Unknown Source)
at java.awt.EventDispatchThread.pumpOneEventForFilters(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForFilter(Unknown Source)
at java.awt.EventDispatchThread.pumpEventsForHierarchy(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.pumpEvents(Unknown Source)
at java.awt.EventDispatchThread.run(Unknown Source)

```

Caused by: java.lang.NullPointerException  
at com.inductiveautomation.reporting.components.ReportViewer.print(ReportViewer.java:1021)  
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 org.python.core.PyReflectedFunction. **call** (PyReflectedFunction.java:186)  
… 107 more

Ignition v7.8.0 (b2015101414)  
Java: Oracle Corporation 1.8.0\_65  
[/code]

---

<div class="post-metadata">

**Author:** ![KathyApplebaum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kathyapplebaum/32/7261_2.png) [@KathyApplebaum](https://forum.inductiveautomation.com/u/KathyApplebaum)\
**Post date:** [December 11, 2015, 4:19pm UTC](https://forum.inductiveautomation.com/t/error-printing-report/10902/2 "2015-12-11T16:19:35Z")

</div>

Wow, a whole lot of stack trace that doesn’t say much. 🙂 I’ll poke around a bit in the code and see if something pops out.

---

<div class="post-metadata">

**Author:** ![KathyApplebaum](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kathyapplebaum/32/7261_2.png) [@KathyApplebaum](https://forum.inductiveautomation.com/u/KathyApplebaum)\
**Post date:** [December 11, 2015, 5:30pm UTC](https://forum.inductiveautomation.com/t/error-printing-report/10902/3 "2015-12-11T17:30:07Z")

</div>

I can reproduce this reliably if the report has not fully loaded in the component when the script is executed. (How long this takes depends on how complicated your queries and report is, and there’s a roundtrip to the gateway, too.)

I don’t see a scripting way to tell if the report is loaded other than trying to print, catching the NPE, and then trying again later. We’ll get this fixed for a future version of 7.8.x