Building from command line issue

Hi,

First of all, great product. I'm trying automate the update process on our build server by using a nant script.

[01:20:24]: [all] exec[01:20:24]: [exec] Starting '****\UpdateStuff\wybuild.cmd.exe "update.wyp" /bu /upload -add="newversion.xml"' in '****\UpdateStuff'[01:20:24]: [exec] wyBuild Commandline Builder v2.6.14.0[01:20:27]: [exec] Building updates: Succeeded[01:20:28]: [exec] Uploading updates: Succeeded[01:20:28]: [all] exec[01:20:28]: [exec] Starting '****\UpdateStuff\wybuild.cmd.exe "update.wyp" /bwu' in '****\UpdateStuff'[01:20:28]: [exec] wyBuild Commandline Builder v2.6.14.0[01:20:28]: [exec] [Error]: The index was outside the range. Must be non-negative and less than the collection.[01:20:28]: [exec] Parametername: index-

I'm getting this when i try to build the wyUpdate file. All other args works fine, as soon as i add /bwu in it throws that exception. Already tried /bwu -ve="xxx" too with no luck.

Any ideas?