Cobra II SDCard documentation

Hi, I am messing with writing to the SD card on my Cobra II, and the examples and developer resource does not help.

Looking at [url]https://www.ghielectronics.com/docs/51/accessing-folders-and-files[/url] works in the board in NETMF, but my project in Gadgeteer fails with.


  #### Exception System.InvalidOperationException - CLR_E_INVALID_OPERATION (1) ####
    #### Message: 
    #### GHI.IO.Storage.SDCard::NativeConstructor [IP: 0000] ####
    #### GHI.IO.Storage.SDCard::.ctor [IP: 0029] ####
    #### GHI.IO.Storage.SDCard::.ctor [IP: 0005] ####

On the line:


           SDCard sd_card = new SDCard();

There is some text in the docs saying you need to mount yourself…throwing in the: Mainboard.MountStorageDevice("SD@ ");

Does not help. Any hints?

For those interested, this thread is a good source of inspiration:[url]https://www.ghielectronics.com/community/forum/topic?id=14407[/url]