I´m still collecting my data for my study (2×2 between subject design) and last week my script worked, but today the aov_car function gave me this error: the formula needs an error term identifying the ID column. My ID variable is “Case” but that doesn´t seem to work. Now I´m unsure if afex::aov_car even makes sense for my design. aov function works but my thesis advisor recommended afex and wants me to use aov_car. What are the (dis)advantages for either? I use emmeans and then posthoc tests after the anova if that is relevant

i´m confused by the different outputs. aov_car seems mostly to be used for between-subjects/repeated measures designs, so then i should probably just use aov right?

this is my version with aov: anova_modelmain <- aov(Rating ~ Anchor + Attractiveness, data = daten)

summary(anova_modelmain)