library(readxl) dirname <- "F:/Weygand/Class/fall21/CNU/LabData/ElectricForce/" fname <- paste(dirname,"Group4",".xlsx",sep='') T1 <- read_excel(fname,sheet="T1") Error in loadNamespace(i, c(lib.loc, .libPaths()), versionCheck = vI[[i]]) : there is no package called ‘lifecycle’
Then you have to install it
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