errors · bitdewfpga bit, after yosys' own reader refused the code

note [second-reader-missing]: yosys' own reader refused this code, and yosys-slang, the second reader (it reads the SystemVerilog Vivado accepts: interfaces, unpacked arrays, foreach, break, enum methods first/last ...), is not installed: /Users/you/fpga/yosys-slang/build/slang.so not found. Fix: run dewfpga install (it builds that reader, ~3 min), then build again.

Printed after the error of yosys' own reader, when the plugin is not there.

note [second-reader-missing]: yosys' own reader refused this code, and yosys-slang, the second reader (it reads the SystemVerilog Vivado accepts: interfaces, unpacked arrays, foreach, break, enum methods first/last ...), is not installed: /Users/you/fpga/yosys-slang/build/slang.so not found. Fix: run  dewfpga install  (it builds that reader, ~3 min), then build again. https://nosey-dewdrop.github.io/dewfpga/errors/second-reader-missing/

Why does it happen?

Since #4 the CLI tries yosys-slang when yosys' own reader refuses the code. An install from before #4, or an interrupted one, has no slang.so.

What is the fix?

dewfpga install

Which command prints it?