R Troubleshooting

Compiled list of issues

Cannot find data

Look at the working path on RStudio. It's right below the tab. Make sure your data file is in that folder.

Cannot knit!

Need to comment out install_packages()

​x
Error in contrib.url(repos, "source") : 
  trying to use CRAN without setting a mirror
Calls: <Anonymous> ... withVisible -> eval -> eval -> install.packages -> contrib.url
Execution halted

Your markdown file includes a command to install a package (something like install_packages(). You should comment out the command or delete it.

Cannot upload output to Blackboard

Blackboard can only accept .doc or .pdf files. If you want to upload an html file, you must compress it first and upload a zip file instead.