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

["Walter Harley" <wharley@xxxxxxx>]

"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?