Update README.md

README.md

@@ -5,6 +5,8 @@ To use PathSimR, download the entire **PathSimR_Shiny** folder, open the script
 
 If when clicking the RunApp button you get the error message ***Error in shinyAppDir(x) : No Shiny applciation exists at the path ""***, (which may happen depending on your local network settings), then run the folowing line in the console to launch the app: ***shiny::runApp("PathSimR_Shiny_v1.R")***.
 
+***Temporary issue (February 2020)*** PathSimR will not work with ***DiagrammeR v.1.0.5*** (a recent update on CRAN). If you already have an older version of the package installed, then you can ignore this note. However, if you are installing it for the first time, then please install the developer version ***DiagrammeR v.1.0.5.9000*** directly from github by running `devtools::install_github("rich-iannone/DiagrammeR")`.
+
 To use the tool, follow the instructions on the screen.
 
 The *PathSimR_Report.Rmd* and the *template.docx* files are called from within the app to create a downloadable Rmarkdown report and do not need to be opened or run separately unless you wish to alter the report format (e.g. replace the Word template with one containing your own organisation's branding).