Error in namespaceExport(ns, exports) : undefined exports: … Error: package or namespace load failed

Question

I recently updated R to the latest version (R version 3.1.1) and now I can´t run load packages. In the case of ggplot2, the error message after running library(\"ggplot2\") is

Answer 1

I often find simply retrying with require() works for some reason: require(BiodiversityR)