I get the following error when I select build: [Error 6] The handle is invalid [cmd: [u'scriptcs', u'C:\dev\scriptcs\play\test.csx']] [dir: C:\dev\scriptcs\play] [path: C:\blah blah blah...;C:\dev\scriptcs\src\Scriptcs\bin\debug] [Finished] The same test.csx works fine from the command line. Any ideas?