大神們，用ABAQUS進行滲流分析時，一直出現重置流通量的情況，具體語句如下：

There is zero VOL. FLUX everywhere in the model based on the default criterion. please check the value of the average VOL. FLUX during the current iteration to verify that the VOL. FLUX is small enough to be treated as zero. if not, please use the solution controls to reset the criterion for zero VOL. FLUX

這個怎么解決？？