Hello, I'm attempting to utilize a different cells library in OpenLane 2. I employed the test file spm.v, and it functions correctly with the default cells library sky130_fd_sc_hd. However, when I try to use any other library such as sky130_fd_sc_hs, sky130_fd_sc_ls, or sky130_fd_sc_ms, I encounter an error while reading "dfrtp_1 layer=230 type=242 is unknown." I don't know how to rectify this issue. In OpenLane 1, there was no problem using a different cells library. Do you think the configuration file might be influencing this?

Hey. Can you open an issue on github with more information? (for example config, logs, the step that failed, etc.)

@Charly Meyer unknown layers display as errors but are actually just warnings. Does your flow complete otherwise?