Error in initializePtr() : function 'cholmod_factor_ldetA' not provided by package 'Matrix'

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hello! I had the same issue, I found my answer here on stack overflow

' Matrix < 1.6-2 and Matrix >= 1.6-2 are binary incompatible. When you change between them, you must re-install from sources packages that link Matrix and therefore depend on the Matrix "

tools::package_dependencies("Matrix", which = "LinkingTo", reverse = TRUE)[[1L]]

install.packages("lme4", type = "source")

hope that helps!

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