The actual "리소스 새로고침 실패" was caused by pack.mcmeta JsonParseException
(fixed in 6718315). The shader compile errors seen on the same log come from
the user-supplied base resourcepack overriding vanilla shaders for an older
MC. Auto-stripping would silently destroy the user's intended look, so emit
a clear warning during build instead and let the user decide whether to
update the base pack.