Error in icc.brmsfit(fit) : (list) object cannot be coerced to type 'logical'

Hopefully an easy question: I get the error message

Error in icc.brmsfit(intercept.only) : (list) object cannot be coerced to type ‘logical’

when trying to fit an intercept only model using the package ‘sjstats’, which should work for models fit with brms. I’m thinking a problem might be that my model has a multiple membership structure with two grouping variables but it might be something completely different.

Any advice what to do about this or how else I can compute the ICC? Thanks :)

The sjstats package is not officially supported or maintained by Stan and so I am not sure if you will receive any help here. I would recommend asking for help on the github website of sjstats:

Oh I see! Thank you!