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Cannot Build Cu Hello World with IceStorm - Printable Version

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Cannot Build Cu Hello World with IceStorm - applekor - 12-17-2021

Has anyone on here been successful at building for Cu using IceStorm?  I built my toolchain by installing apio and following the instructions on FPGAWars' GitHub.  What is the ".sdc constraints" error about, and is it failing to build because I am specifying nextpnr instead of arachne-pnr and Alchitry Labs doesn't like it?  If that is the case, can Alchitry Labs be updated to use nextpnr, since arachne-pnr is deprecated?