Unable to locate license assembly (regarding source control)

I am on a project with 4 other developers.  I am the only one using Infragistics (for the webchart).  I sent my Infragistics webchart changes to our source control and the other devlopers have gotten the latest version of our project.

 Now those developers are getting the following error:

Error 1 Exception occurred creating type 'Infragistics.WebUI.UltraWebChart.UltraChart, Infragistics2.WebUI.UltraWebChart.v6.3, Version=6.3.20063.1079, Culture=neutral, PublicKeyToken=xxx' System.ComponentModel.LicenseException: Unable to locate license assembly. C:\Inetpub\wwwroot\xxxxx\Properties\licenses.licx 1 vpm-sp2