The version I use, RStudio-2023.03.1-446, I already mentioned in the origin message. Sending you a screenshot/photo of the RScript and Console after my first try of installing the package is not possible anymore, because someone else than me gained access to my project via means of distance communication and cleaned the Console and the Environment.
I now tried to install ‚dplyr‘ again and got a different answer. Now, the package was ob viously downloaded, see photo.
However, now, I can not use it, because the three previously prepared data sets are not in the environment anymore and only stored in the RScript. So, my question is how can someone get access to my Rproject and clean without my consent the Console and Environment and how can I get especially the three elaborated prepared data sets back)?