compiler error

[enragedturtle123]

Compiler Error: D:\software\game\Demonbuddy\Plugins\Trinity\UI\Visualizer\RadarCanvas\RadarCanvas.cs(1545,183) : error CS0117: 'VisualTreeHelper' does not contain a definition for 'GetDpi'

what am I missing? I haven't used DB for years and just started again

 

[Tony]

upload a full log file plz