做面板门槛模型时出现3200错误怎么解决啊


xthreg GTFP lnenergy_structure lnindustrial_scale lnassnet envir_new lntwo,rx( higher_edu) qx( RD_person) thnum(1) grid(1000) trim(0.01) bs(1000)
Estimating  the  threshold  parameters:   1st ......  Done
Boostrap for single threshold
.                 bgrid():  3200  conformability error
                thestm():     -  function returned error
                 <istmt>:     -  function returned error
r(3200);