No ".HYD" file is generated in EEMS 12.4 with EFDC.WSP present, no error is shown, How can I resolve this problem?

I am just trying to run the “DM-07_1DRiver_WASP_Linkage_(EE12.3)” . EFDC run is complete but there is no .hyd file in output folder. I noted that there is an efdc.wsp file in input folder and I renamed it as EFDC.WSP file ( .inp type and not text type). Still no “. hyd” file is generated. It appears from the manual that a file like “efdc_dsi_wasp.HYD” should have been generated. But I can not find any such file either in Output folder, or in root folder. Any idea, how can I generate .hyd file?