.Error in library(...) : there is no package called ‘...’ can not be found

General
1

I start on R and I have a problem to install R cmdr.
I downloaded it but when I want to open it with Library (), it tells me that the package library(dataiku)...Error in library(dataiku) : there is no package called ‘dataiku’ can not be found:

2

I'm not too familiar with R cmdr, but in R that error message means that the r-package dataiku hasn't been installed yet.

Here's a step by step guide with pictures ( How to install packages on R + screenshots), but you probably just need to a run once

install.packages("dataiku")

Before loading dataiku with library(dataiku).