I was trying to modify an existing IDF file to include a certain zones within the file. I am keep getting the below error for a certain air loops. All the details are the same for these air loops and others. Could anybody give me a hint on how to fix this problem.

** Severe  ** During AirLoopHVAC:SupplyPath Input, Invalid Component Name input=VAV_POD_2 SUPPLY AIR SPLITTER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONESPLITTER
** Severe  ** During AirLoopHVAC:SupplyPath Input, Invalid Component Name input=VAV_POD_3 SUPPLY AIR SPLITTER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONESPLITTER
** Severe  ** During AirLoopHVAC:SupplyPath Input, Invalid Component Name input=VAV_POD_4 SUPPLY AIR SPLITTER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONESPLITTER
** Severe  ** During AirLoopHVAC:SupplyPath Input, Invalid Component Name input=VAV_POD_5 SUPPLY AIR SPLITTER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONESPLITTER
** Severe  ** During AirLoopHVAC:ReturnPath Input, Invalid Component Name input=VAV_POD_2 RETURN AIR MIXER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONEMIXER
**   ~~~   ** In AirLoopHVAC:ReturnPath = VAV_POD_2 RETURN AIR PATH
** Severe  ** During AirLoopHVAC:ReturnPath Input, Invalid Component Name input=VAV_POD_3 RETURN AIR MIXER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONEMIXER
**   ~~~   ** In AirLoopHVAC:ReturnPath = VAV_POD_3 RETURN AIR PATH
** Severe  ** During AirLoopHVAC:ReturnPath Input, Invalid Component Name input=VAV_POD_4 RETURN AIR MIXER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONEMIXER
**   ~~~   ** In AirLoopHVAC:ReturnPath = VAV_POD_4 RETURN AIR PATH
** Severe  ** During AirLoopHVAC:ReturnPath Input, Invalid Component Name input=VAV_POD_5 RETURN AIR MIXER
**   ~~~   ** Component type=AIRLOOPHVAC:ZONEMIXER
**   ~~~   ** In AirLoopHVAC:ReturnPath = VAV_POD_5 RETURN AIR PATH
**  Fatal  ** GetZoneEquipmentData1: Errors found in getting Zone Equipment input.