Hi all,  I am trying to use the MCTK programmatically with IDL, I cut and paste in IDL the Level 3 grid example from the MCTK user guide, I compile and run the code, but I experiment the error: MCKT ERROR: Unable to attach specified grid. Check name against HDF file contents. And then, appear the warning: Attempt to call undefined function/procedure: `EOS_GD_CLOSE`.       ;Level 3 grid example pro test_batch_modis_conversion_grid compile_opt idl2 modis_grid_file = 'C:\JAVIER\imagenes\imagenes_request_2_set\MYD09GQ.A2008244.h12v12.005.2008246180654.hdf' ;The specified output location MUST end in the appropriate path ;separator for your OS output_location = 'C:\javier\borrar\' output_rootname = 'monthly_NDVI' grid_name = 'MOD_Grid_monthly_1km_VI' sd_names = ['1 km monthly NDVI','1 km monthly EVI'] ;Output method schema is: ;0 = Standard, 1 = Reprojected, 2 = Standard and reprojected out_method = 1 output_projection = envi_proj_create(/geographic) ;Specify the output X and Y pixel sizes in double precision floating ;point. Sizes must be in units relevant to selected output projection ;(degrees in this example). out_ps_x = 0.008370d out_ps_y = 0.008370d ;The interp_method keyword uses the same numbering scheme as ;ENVI_REGISTER_DOIT's METHOD keyword ;Choosing Triangulation with Nearest Neighbor. interpolation_method = 6 ;Set reprojection background and any native fill values to -999 ;Setting num_x_pts to 50 and num_y_pts to 50 results in 2500 GCPs. ;That should be more than enough.... convert_modis_data, in_file=modis_grid_file, $ out_path=output_location, out_root=output_rootname, $ /higher_product, /grid, gd_name=grid_name, sd_names=sd_names, $ out_method=out_method, out_proj=output_projection, $ out_ps_x=out_ps_x, out_ps_y=out_ps_y, num_x_pts=50, $ num_y_pts=50, interp_method=interpolation_method, $ background=-999, fill_replace_value=-999 end   someone can help me… thanks in advance!, Javier