add a check for "tools:rstudio" before adding it to the environment to avoid adding it twice.
add a check for "tools:rstudio" before adding it to the environment to avoid adding it twice.

JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio,JanMarvin/rstudio