RStudio - no symbol named 'X' in scope

Question

Why do I get the yellow triangular warnings in the LHS margin in RStudio when using packages like dplyr? When I begin to use my current version of RStudio (1.0.136) there are no warnings. Then I start to code, mistype something, and a whole bunch of the yellow triangles appear. Yet if I restart RStudio, I begin again with none.

Is there a way to suppress and/or prevent this?

Answer 1

Those are code diagnostics, designed to help you catch errors and fix them. You can turn them off if they are annoying and cumbersome.

Here is a link that discusses these features of the IDE and how to change them:

https://support.rstudio.com/hc/en-us/articles/205753617-Code-Diagnostics

Justin