Problems publishing NuGet symbols package

[jtroe]

rake release:cs yields:

mono dot-net/build/support/NuGet.exe push dot-net/build/pkg/Centroid.1.2.1.nupkg
Pushing Centroid 1.2.1 to the NuGet gallery (https://www.nuget.org)...
Your package was pushed.
Pushing Centroid 1.2.1 to the symbol server (http://nuget.gw.symbolsource.org/Public/NuGet)...
Failed to process request. 'Internal Server Error'. 
The remote server returned an error: (500) Internal Server Error..
rake aborted!
Albacore::CommandFailedError: Command failed with status (1):
  mono dot-net/build/support/NuGet.exe push dot-net/build/pkg/Centroid.1.2.1.nupkg
Pushing Centroid 1.2.1 to the NuGet gallery (https://www.nuget.org)...
Your package was pushed.
Pushing Centroid 1.2.1 to the symbol server (http://nuget.gw.symbolsource.org/Public/NuGet)...
/Users/jroebuck/.rvm/gems/ruby-2.2.0/gems/albacore-2.6.2/lib/albacore/cross_platform_cmd.rb:263:in `raise_failure'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/gems/albacore-2.6.2/lib/albacore/cross_platform_cmd.rb:242:in `block in handler_with_message'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/gems/albacore-2.6.2/lib/albacore/cross_platform_cmd.rb:111:in `call'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/gems/albacore-2.6.2/lib/albacore/cross_platform_cmd.rb:111:in `block in system'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/gems/albacore-2.6.2/lib/albacore/cross_platform_cmd.rb:247:in `handle_not_found'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/gems/albacore-2.6.2/lib/albacore/cross_platform_cmd.rb:87:in `system'
/Users/jroebuck/Projects/foss/centroid/Rakefile:47:in `block (3 levels) in <top (required)>'
/Users/jroebuck/Projects/foss/centroid/Rakefile:46:in `glob'
/Users/jroebuck/Projects/foss/centroid/Rakefile:46:in `block (2 levels) in <top (required)>'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `eval'
/Users/jroebuck/.rvm/gems/ruby-2.2.0/bin/ruby_executable_hooks:15:in `<main>'
Tasks: TOP => release => release:cs