TypeInitializationException - The type initializer for 'System.Windows.Window' threw an exception
For anyone else getting this error, check your log file in %localappdata%\linqpad\logs. If the exception contains the following details:
An invalid environmental path can cause this exception when calling WPF components such as the IQ driver or NuGet integration window. In particular, bear in mind that the path is limited to ~2K characters in Windows 7 and installing too much software can cause the path variable to get truncated!
INNER: TypeInitializationExceptionthen check your operating system path variable:
The type initializer for 'System.Windows.FrameworkElement' threw an exception.
at System.Windows.Window..cctor()
INNER: TypeInitializationException
The type initializer for 'System.Windows.Documents.TextElement' threw an exception.
at System.Windows.FrameworkElement..cctor()
INNER: TypeInitializationException
The type initializer for 'MS.Internal.FontCache.Util' threw an exception.
at MS.Internal.FontCache.Util.get_Dpi()
at System.Windows.SystemFonts.ConvertFontHeight(Int32 height)
at System.Windows.Documents.TextElement..cctor()
Environment.ExpandEnvironmentVariables("%path%")An invalid environmental path can cause this exception when calling WPF components such as the IQ driver or NuGet integration window. In particular, bear in mind that the path is limited to ~2K characters in Windows 7 and installing too much software can cause the path variable to get truncated!