Installation problems still

[ponnet]

RStudio server version - none of the solutions work:

> install.packages("RDCOMClient")
> Warning in install.packages :
>   package ‘RDCOMClient’ is not available 
> -----------------------------------------------------
> install.packages("RDCOMClient", repos = "http://www.omegahat.net/R") 
> In file included from COMError.cpp:1:0:
> RCOMObject.h:23:21: fatal error: windows.h: No such file or directory
>  #include <windows.h>
>                      ^
> compilation terminated.
> make: *** [COMError.o] Error 1
> ERROR: compilation failed for package ‘RDCOMClient’
> -----------------------------------------------------------------------------
>