Install RCPPTOML package for reticulate in Posit Workbench


You may run into an issue while trying to install RcppTOML package for reticulate in Workbench. 

The error you will see appears like this:  ERROR: compilation failed for package ‘RcppTOML’ . This error indicates that there was an issue compiling the RcppTOML package, which is needed for reticulate. The RcppTOML package also imports the Rcpp package, which relies on having a working C++/g++ compiler on the system:

System Requirements: A C++11 compiler; g++ (>= 4.9.*) or newer works.

To solve this problem, you will need to make sure that you have a C++/g++ compiler that satisfies these requirements on the system. The simplest method to ensure this is to install and use the devtoolset packages provided by RedHat/CentOS - see the example in the article below;

After installing the devtoolset on the system, install reticulate.


Once reticulate is installed, we recommend installing Python following the steps described at

After that, the issue should be resolved.

For more information or questions, feel free to open a support ticket here