Can't install dslabs package

Error Information: I am new at this, and I am trying to install the "dslabs" package without success.

Description of issue - Any idea why is not working? I already installed other packages but this one is not working.

Steps taken so far - I have use the RStudio, R 3.3.1 and R 3.5.3

System Information:

  • RStudio Edition: (Desktop or Server)
  • RStudio Version: 1.1.463
  • OS Version:
  • R Version: 3.3.1 & 3.5.3

From Troubleshooting Guide: Using RStudio

We don't have enough information to help you out, what is the error message that you get when you run install.packages("dslabs")