aspen模拟换热器heatx出现以下警告，求帮助助

aspen模拟换热器heatx出现以下警告，求帮助，请高手指点问题究竟出在哪了，该如何改正，感激不尽

*  WARNING

   CALCULATED FEED TEMPERATURE FOR THE COLD SIDE (3.2368457D+02)

   IS INCONSISTENT WITH ITS INLET STREAM VALUE (3.4315000D+02)

   PROBABLE CAUSE: UPSTREAM BLOCK WITH DIFFERENT NPHASE OR PROP SET

   THE CALCULATED VALUE WILL BE USED IN BLOCK CALCULATIONS