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I am trying to install Lync Server 2013 on a Windows Server 2008 R2 but during the server component installation I get the Error

Error: Command execution failed: Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index

The error happens on this step (report path truncated):

This step will configure services, apply permissions, create firewall rules, etc. Executing PowerShell command: Enable-CSComputer -Confirm:$false -Verbose -Report "....html"

Image with complete report (cannot embedded image due to lack of reputation): http://i.stack.imgur.com/M1XfG.png

I have reinstalled all the components already but the error persists.

The Server is also hosting a Team Foundation Server 2012. To prepare for Lync I removed the TFS WebSite Binding for Port 8080 disabled it in IIS.

What causes the error and how do I resolve it?

  • This looks like a bug in the installer. Please consider contacting Microsoft support. – Deer Hunter Sep 22 '14 at 12:46
  • Any other Microsoft product installed on your server (except Windows), like Sharepoint, DC etc...? – krisFR Sep 22 '14 at 20:22
  • Sorry I forgot to mention. There is a TFS 2012 Server installed. I updated the question. – elch Sep 23 '14 at 13:18
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As it file while doing the "Enable new Roles" I assume it didn´t like you Team Foundation Server running on the same OS. I would fully remove that or better start with a brand new OS.

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