Please post the text version of the error in the future... your picture is almost unreadable. Also, if it is actually important that you are using RStudio then your question probably doesn't belong here. Also, if the problem is a faulty contributed package then you will need to contact the package maintainer as the Posting Guide mentioned below says.
I don't know why the dependency is not being handled correctly, but my suggestion would be to install the rlang package first, and once that is installed try installing ggplot2. Read the errors... it says there is a problem with the rlang package.
On March 5, 2019 10:04:41 AM PST, Kamalika Ray <kamalikaray333 at gmail.com> wrote:
Hi,
I have been trying to install the ggplot2 package but I am unable to do
so. My Mac OS version is 10.7.4 and I have downloaded the
R-Studio-1.1.463.
I have attached the screenshot of the error message which appears.
Please help!
Thank you,
Kamalika
India
--
Sent from my phone. Please excuse my brevity.