[tycho-user] Getting: Could not locate the running profile instance

[Thomas Johnsson <thomas@xxxxxxxx>]

I'm building a product being essentially eclipse sdk 3.7.2 plus some 
extra plugins, both external and locally designed. I can start and run 
the resulting eclipse ide, but:
When selecting menu Help->Install new software , I get the message :
"Cannot complete the request. This installation has not been configured 
properly for Software Updates. See the Error log for details."
The eclipse error log says:
"Could not locate the running profile instance. The eclipse.p2.data.area 
and eclipse.p2.profile properties may not be set correctly in this 
application's config.ini file."

In the generated config.ini though, eclipse.p2.data.area and 
eclipse.p2.profile are the same as in a downloaded eclipse sdk 3.7.2.

I also get another error which I think might be related:
When I click on "Installation Details" on the "About Eclipse platform" 
window, I get:
" 'Fetching children of _SELF_' has encountered a problem. " , with the 
following Exception stack trace:
java.lang.NullPointerException
    at 
org.eclipse.equinox.internal.p2.ui.model.ProfileElement.getQueryable(ProfileElement.java:55)
    at 
org.eclipse.equinox.internal.p2.ui.QueryProvider.getQueryDescriptor(QueryProvider.java:88)
    at 
org.eclipse.equinox.internal.p2.ui.model.QueriedElement.fetchChildren(QueriedElement.java:101)
    at 
org.eclipse.equinox.internal.p2.ui.model.RemoteQueriedElement.fetchDeferredChildren(RemoteQueriedElement.java:34)
    at 
org.eclipse.ui.progress.DeferredTreeContentManager$1.run(DeferredTreeContentManager.java:235)
    at org.eclipse.core.internal.jobs.Worker.run(Worker.java:54)

Obviously something is misconfigured, but I have no further clue. Please 
help.

Thanks in advance,
-- Thomas