
I never got the "you are too tired" message, It just stopped building and when I clicked build it came up with the no applicable building material message.
I got the no applicable building material message even after refilling my stamina bar completely and re-opening the build sign.
My stamina was low around 25% when it stopped.
After logging out and back in I was able to continue and complete building.
I don't know how to reproduce this bug.