Lemur SD Card

Hi,
I’m trying to use the SD card on my Lemur board without success.
I’m using VS2015 and GHI SDK 4.3 along with the code example here.
https://www.ghielectronics.com/docs/51/accessing-folders-and-files
The code builds ok but when I deploy I get the error message
Assembly: GTM.GHIElectronics.SDCard (4.3.7.10) needs assembly ‘Gadgeteer’ (2.43.1.0)
I can’t see any reference to this anywhere.

Thanks

Disaster!!
It now won’t deploy any code to the board.
When I press LDR0 and reset it appears on Com3 but USBizi won’t connect to it. If I just press reset and go to Fez Config, under USB G30_G30 appears briefly then dissapears, and I can’t connect to it.
Please help.
Thanks

Well once again the problem seems to be the person sitting in front of the computer. Trying to download a program to the board which was too large.
Question:
How do you determine the file size before deployment?