Rcrawler fail cluster setup R v4.0.0

[ljmills]

I was trying to do some of the examples and got this error. I am using R v4.0.0 and OSX 10.15.5

library(Rcrawler)
Rcrawler(Website = "http://www.glofile.com", no_cores = 1, no_conn = 1)

Error in makePSOCKcluster(names = spec, ...) :
Cluster setup failed. 1 worker of 1 failed to connect.

sessionInfo()
R version 4.0.0 (2020-04-24)
Platform: x86_64-apple-darwin17.0 (64-bit)
Running under: macOS Catalina 10.15.5

Matrix products: default
BLAS: /System/Library/Frameworks/Accelerate.framework/Versions/A/Frameworks/vecLib.framework/Versions/A/libBLAS.dylib
LAPACK: /Library/Frameworks/R.framework/Versions/4.0/Resources/lib/libRlapack.dylib

locale:
[1] en_US.UTF-8/en_US.UTF-8/en_US.UTF-8/C/en_US.UTF-8/en_US.UTF-8

attached base packages:
[1] stats graphics grDevices utils datasets methods base

loaded via a namespace (and not attached):
[1] compiler_4.0.0 tools_4.0.0