[news.eclipse.helpwanted] PartInitException

[strubbe@xxxxxxxxxxxx (mattcom)]

Hello !

I have developed an Eclipse product (containing a GEF editor).
When running this product from inside the Eclipse IDE, there are no 
problems opening the editor (on any PC).  
Also, when I run my application as a standalone package on my PC, 
everything works fine...

But when I run my application as a standalone package on any other PC, a 
PartInitException is caught when the editor is opened.

Here's the code to open the editor:

IWorkbench wb = PlatformUI.getWorkbench();
IWorkbenchWindow win = wb.getActiveWorkbenchWindow();
IWorkbenchPage page = win.getActivePage();
IEditorInput input = new MyEditorInput();

if (page != null)
{
try
{
page.openEditor(
input,
"myEditorID",
true);
} 
catch (PartInitException e1)
{
//AN EXCEPTION IS CAUGHT HERE,
//but only when my product is run 
//as a standalone application on another PC than mine !
// e1.getMessage() = "Unable to open editor, unknown 
// editor ID: myEditorID"
} 
}

How can I solve this problem ?
Thanks in advance for any help !