Is it possible to change "svn:externals" property of subversion repository remotely? -

I am trying to change the "svn: externals" property of a remote repository via this command:

  svn ps svn: externals "vendor1 http://vendor_repo_here.com" http://main-repo-here.com  

I change "svn" Expecting the above order for: External "Whatever the property" is the seller "1" .. but it throws an error:

  Establishment of the property on non-local targets is http : //main-repo-here.com 'requires base modification  

then I try this:

  svn ps -r HEAD svn: externals "vendor1 http://vendor_repo_here.com" http: // main-repo-here. Com  

Now it says:

  can not specify the revision for the version 'svn: externals'  

Am I doing something wrong? Is it any where from where it can be remotely converted through the command line?

I had a similar problem, Tarois seems to be checkout and then repeat So, I wrote a script that does the same.

  svn checkout & lt; URL & gt; Repopp - Dispute 'empty' SVN propagate SNV: Extensional Repopp & gt; Tmp2 // Whatever you want to do & gt; Tmp_new svn propset svn: external repopopy -f tmp_new svn commit -m "comment comment" tmp rm -f -r repocopy rm tmp2 rm tmp_new