求助大大们，Encounter做runQRC的时候出错啦！~

大大们，我用Encounter做post route opt的时候报错，在starrc的时候出现这个错误：
ERROR (EXTZTECH-321) : Error [input]: Layer poly: Layer with sub-conductors has non-constant bias.
Only constant bias is allowed in layers with sub-conductor layers. Check
the layer description in the ICT file.
大神们，这个是什么引起的呢?第一次用encounter，不懂呀！~
另外mapfile：
layerPOLY1 icecapspoly
layerM1icecapsmetal1
layerM2icecapsmetal2
layerM3icecapsmetal3
layerM4icecapsmetal4
layerM5icecapsmetal5
layerM6icecapsmetal6
layerTM1icecapsmetal7
layerTM2icecapsmetal8
layerALPAicecapsalpa_inter
layerCTicecapspolyCont
layerV1icecapsvia1

ICTfile：
conductor poly {
min_spacing5.7600E-02
min_contact_poly_spacing0.036
min_width3.6000E-02
height3.2200E-01
thickness8.3160E-02
resistivity1.1450E+01
temp_tc11.6600E-03
temp_tc2-2.9500E-07
gate_forming_layertrue
layer_type gate
wire_edge_enlargement_c {
wee_widths3.6000E-02
wee_spacings 5.7600E-02
wee_adjustments0.0061
}
恳请赐教！~

大家都说说呗。指导下呀！~