Error while loading data from ODS to infocube

hi gurus,

i am loading data from ODS to infocube. The data is available in the ODS but the data is not getting transferred to infocube. the error ia m getting is "info idocs are missing. with the file system as source system the IDOC are created in BW. As this did not happen there was probably a short dump in BW".

assign points if some one gives helpful answer