Import Ascii in Idrisi - error unable to open document

I need to import my raster image from Arcmap. I converted my raster to Ascii file and imported from ARCRASTER - Arcinfo raster Ascii format to Idrisi, but after i finished the file can be viewed in the working folder but not in the main workspace. It shows error called unable to open document from the location which my output data is.  please do a needful help for me.