nextpnr cant route design - ERROR: Invalid global constant node 'INT_L_X0Y60/GND_WIRE'

[mirekez]

This looks new since there is no crash after error
The design is very very small and simple
Vivado works
ERROR_Invalid_global_constant_node_INT_L_X0Y60_GND_WIRE.zip

[lehaifeng000]

I am interesting in this error, but I don't understand systemverilog, is there verilog code or the top.json from yosys ?

[hansfbaier]

@mirekez Might it be possible to simplify the systemverilog to get a minimal reproducing example?