"Pillar & Rlang" Installation issue

Whenever installing pillar, finding a problem and not able to import Excel data.

using latest version of RStudio 1.1.5033

install.packages("pillar")
Installing package into ‘C:/Users/RAJESH SINGH/Documents/R/win-library/3.4’
(as ‘lib’ is unspecified)
also installing the dependencies ‘ellipsis’, ‘rlang’, ‘cli’, ‘vctrs’

There are binary versions available but the source versions are later:
binary source needs_compilation
ellipsis 0.1.0 0.3.0 TRUE
rlang 0.3.4 0.4.4 TRUE
cli 1.1.0 2.0.1 FALSE
vctrs 0.1.0 0.2.2 TRUE
pillar 1.3.1 1.4.3 FALSE

Do you want to install from sources the packages which need compilation?
y/n: y

library(pillar)
Error in library(pillar) : there is no package called ‘p

Pls help....

Can you share the whole error message? You are omitting the important parts.

install.packages("pillar")
Installing package into ‘C:/Users/RAJESH SINGH/Documents/R/win-library/3.4’
(as ‘lib’ is unspecified)
also installing the dependencies ‘ellipsis’, ‘rlang’, ‘cli’, ‘vctrs’

There are binary versions available but the source versions are later:
binary source needs_compilation
ellipsis 0.1.0 0.3.0 TRUE
rlang 0.3.4 0.4.4 TRUE
cli 1.1.0 2.0.1 FALSE
vctrs 0.1.0 0.2.2 TRUE
pillar 1.3.1 1.4.3 FALSE

Do you want to install from sources the packages which need compilation?
y/n: y

Warning in install.packages :
installation of package ‘pillar’ had non-zero exit status

Are you sure that is the whole message? You are not giving us any useful information to work with.

Based on the information you are sharing I can only advice you to update R to a newer version so you have access to binary versions that do not need compiling, and to make sure you have Rtools properly installed in your system.