r 3.5 Windows - devtools ‘rlang’ does not have a namespace

[mcm220]

Having issues post install of devtools when loading as follows:

library(devtools)
Error: package or namespace load failed for ‘devtools’:
package ‘rlang’ does not have a namespace

I am an R newbie, any help appreciated.

[mfherman]

Welcome, @mcm220. Looks like you need to install the rlang package. Try running:

install.packages("rlang")

After you've installed rlang, you should be able to load and use devtools.

[mcm220]

Many thanks for the help. In the end I had to re-install devtools and use the following code to see the enclosed packages:

> library(devtools)
> library(pkgbuild)

Thanks again for the help, much appreciated

[andresrcs]

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[mcm220]

@andresrcs Sure no problem on the solution. For my issue regarding errors encountered using devtools in R 3.5 , by loading pkgbuild I was able to move forward. The error and simple resolution is below:
'''

find_rtools()
Error in find_rtools() : could not find function "find_rtools"
library(pkgbuild)
Attaching package: ‘pkgbuild’
The following object is masked from ‘package:devtools’:

build

find_rtools()
[1] TRUE

''
Many thanks.