Could not find file "/sys/class/gpio/gpio4"

Hey I have followed this guide: https://pisharp.codeplex.com/wikipage?title=Using%20LibGpio My code and democode compiles fine in Visual Studio but on the Raspberry Pi i get an error I can see ...

Id #1756 | Release: None | Updated: Feb 15, 2015 at 12:51 PM by DeeJay1984 | Created: Feb 15, 2015 at 12:51 PM by DeeJay1984

Use Input Changed Events Rather Than Polling

Investigate using an 'input changed' callback, rather than require the user to poll the input.

Id #1043 | Release: None | Updated: Feb 14, 2013 at 7:11 PM by andycb | Created: Jun 29, 2012 at 11:50 PM by andycb

GPIO Header image is not aligned under Mono

The image of the GPIO header on the Simulator is not aligned with the LEDs when running under Mono.

Id #1007 | Release: None | Updated: Feb 14, 2013 at 7:11 PM by andycb | Created: Jun 17, 2012 at 9:38 PM by andycb

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