JetBrains/meta-runner-power-pack — pull request #16 by ringods (2013-11-29 08:53:01+00:00)
Title: PS script uses .NET 4 features, so requires Powershell 3.0

The Powershell script code uses String.IsNullOrWhiteSpace. This method was introduced in .NET 4.0. PowerShell 3.0 is required to use .NET 4.0 features.