Delphi 2009 refactoring error

votes
I use Delphi2009. When using Refactoring -> Change Params every time when I try to add new parameter to routine, when I setup new parameter and click “Refactor” I get an error:
alt text http://img518.imageshack.us/img518/6672/delphief.jpg
(NOTE: imageshack sometimes has problems, so sometimes you may not see this image).
Do you know any workaround?
delphirefactoringdelphi-2009
You mean details from this window? Beacause when it comes to source code, it is no matter what I try to refactor - every adding parameters to any procedure crashes. – smok1
Do you have all updates installed? – Harriv
3 Answers

votes
Looking naively at that callstack, have you checked if everything related to debugging symbols is on in your compiler options?
votes
This is the error message, since there is some problem with screenshot hosting site.
See the end of this message for details on invoking 
just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text **************
System.NullReferenceException: Object reference not set to an instance of an object.
   at Borland.Studio.Delphi.ChangeParamsRefactoring.GetSymbolInformation(String& namespaceName, String& oldParamSig, String& newParamSig, String& symbolKind, String& returnSig, String& containingUnit, String& project, String& outputName, String& personality)
   at Borland.Studio.Refactoring.BaseChangeParamsRefactoring.GetRefactoringNode()
   at Borland.Studio.Refactoring.BaseRefactoring.f()
   at Borland.Studio.Interop.StatusForm.a(Object , EventArgs )
   at System.Windows.Forms.Form.OnActivated(EventArgs e)
   at System.Windows.Forms.Form.set_Active(Boolean value)
   at System.Windows.Forms.Form.WmActivate(Message& m)
   at System.Windows.Forms.Form.WndProc(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.OnMessage(Message& m)
   at System.Windows.Forms.Control.ControlNativeWindow.WndProc(Message& m)
   at System.Windows.Forms.NativeWindow.Callback(IntPtr hWnd, Int32 msg, IntPtr wparam, IntPtr lparam)


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----------------------------------------
Borland.Studio.Interop
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
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----------------------------------------
Borland.Studio.Delphi.Gate
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----------------------------------------
Borland.Studio.Vcl.Design.Refactoring
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----------------------------------------
Borland.Delphi
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----------------------------------------
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----------------------------------------

************** JIT Debugging **************
To enable just-in-time (JIT) debugging, the .config file for this
application or computer (machine.config) must have the
jitDebugging value set in the system.windows.forms section.
The application must also be compiled with debugging
enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.
votes
Ok found the case.
This error occurs only if file in which we perform refactoring is not in USES section of DPR file ie. is a library file in Delphi’s search path (or how is this path called).