[news.eclipse.newcomer] Re: Manifest.mf Problem

[ihybily@xxxxxxxxx (amy)]

Walter Harley wrote:

> "amy" <ihybily@xxxxxxxxx> wrote in message 
> news:b441ce7d5a30052a5f151249f41e929e$1@xxxxxxxxxxxxxxxxxx
> > i got an error in the MANIFEST.MF
> > "Plug-ins declaring extensions or extension points must set singleton 
> > attribute to true"
> >
> > so I added the singleton:=true to my Bundle-SymbolicName: 
> > org.eclipse.contribution.hello
> > -->
> > Bundle-SymbolicName: org.eclipse.contribution.hello; singleton:=true
> >
> > I still got the original error.  :(


> If you create a new plug-in project using the "new project" wizard to 
> specify a "hello world" plug-in, and you inspect its manifest.mf, are there 
> any relevant differences between that and the one that you created by hand?

yes i wanted practise by hand as much as possible so i didn't choose the 
"create a plug-in using one of the templates"

but the error disapeared after sometime!!!!   i don't know why......
at least i can go on now.