Can't import libraries to rsaga

I get this error when I’m trying to import a raster to RSAGA:

> rsaga.import.gdal(paste(rast_name, ".tif", sep=""),"RASTER", env= my_env)

Module 'GDAL: Import Raster' not found in SAGA library 'io_gdal'.
Check if module name has changed (or is misspelled)?
The following (non-interactive) modules currently exist in this SAGA library:

$io_gdal
NULL

However that file is found from modules, defined to my_env:

> my_env <- rsaga.env(workspace=substr(path_saga, 1, nchar(path_saga)-1),
+ path=sagapath, modules=sagamods)

> my_env
$workspace
[1] "C:/HY-Data/HRIIHIMA/data/DEM10_Fenno/"

$cmd
[1] "saga_cmd.exe"

$path
[1] "C:/Program Files/QGIS Wien/apps/saga/"

$modules
[1] "C:/Program Files/QGIS Wien/apps/saga/modules/"

$version
[1] "2.1.2"

$cores
[1] NA

$parallel
[1] FALSE

$lib.prefix
[1] ""

Screenshot:

Shouldn’t this command work even without explicitly tell where the libraries area, like this:

> rsaga.get.libraries()
Error in dir(path, paste("^.*\", dll, "$", sep = "")) : 
invalid 'path' argument

It appears that rsaga can’t find these libraries…

I’m using v. 3.1.2 R and v. 2.1.2 SAGA GIS

Any idea how to fix this?