cannot be unmapped.Aborting

522526tl

ped. Aborting...
Error: the net named mul4/add_0_root_add_0_root_add_1399_3/n113 cannot be unmapped. Aborting...
Error: the net named mul3/add_0_root_add_0_root_add_1398_3/n3 cannot be unmapped. Aborting...
Error: the net named mul3/add_0_root_add_0_root_add_1398_3/n110 cannot be unmapped. Aborting...
Error: the net named mul13/add_0_root_add_0_root_add_1402_3/FE_RN_11006_0 cannot be unmapped. Aborting...
Error: the net named mul13/add_0_root_add_0_root_add_1402_3/FE_RN_11005_0 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n73 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n72 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n70 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n68 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n66 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n64 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n62 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n60 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n58 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n56 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n54 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n52 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n50 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n48 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n46 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n44 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n42 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n40 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n38 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n36 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n34 cannot be unmapped. Aborting...
Error: the net named d1/lt_1277/n31 cannot be unmapped. Aborting...
Error: the net named mul15/add_0_root_add_0_root_add_1399_3/n2 cannot be unmapped. Aborting...

在 pre-CTS optimization 的时候出现上述错误，求高手答疑解惑啊

Miao_Alexia

我也遇到了，求解