Lazyeval over-writing dplyr? - r

Question

Not quite understanding what "lazyeval" is, I was trying to install and run the package to use dplyr within a function.
When I ran
library(lazyeval)
I got the error message:
Error in library(lazyeval) : there is no package called 'lazyeval'
even after successfully installing.
Now, though, when I try to run any standard dplyr script, I get the following error message:
Error in loadNamespace(name) : there is no package called 'lazyeval'
It's as if the lazyeval has over-written dplyr, but I can't actually use lazyeval.
Has anyone run into this issue? If so, how did you resolve?
Some info:
sessionInfo()
R version 3.1.2 (2014-10-31)
Platform: x86_64-w64-mingw32/x64 (64-bit)
locale:
[1] LC_COLLATE=English_United States.1252
[2] LC_CTYPE=English_United States.1252
[3] LC_MONETARY=English_United States.1252
[4] LC_NUMERIC=C
[5] LC_TIME=English_United States.1252
attached base packages:
[1] grid splines stats graphics grDevices utils datasets
[8] methods base
other attached packages:
[1] scales_0.2.4 gridExtra_0.9.1 ggplot2_1.0.0 forecast_5.4
[5] timeDate_3010.98 reshape2_1.4 xts_0.9-7 zoo_1.7-11
[9] lubridate_1.3.3 dplyr_0.4.1 plyr_1.8.1
loaded via a namespace (and not attached):
[1] assertthat_0.1 colorspace_1.2-4 DBI_0.3.1 digest_0.6.4
[5] fracdiff_1.4-2 gtable_0.1.2 lattice_0.20-29 magrittr_1.0.1
[9] MASS_7.3-35 memoise_0.2.1 munsell_0.4.2 nnet_7.3-8
[13] parallel_3.1.2 proto_0.3-10 quadprog_1.5-5 Rcpp_0.11.1
[17] stringr_0.6.2 tools_3.1.2 tseries_0.10-32
When I run .libPaths(), I get two directories:
[1] "C:/Users/MTULLA/Documents/R/win-library/3.1"
[2] "C:/Program Files/R/R-3.1.2/library"
In the first, I can find both dplyr and lazyeval, both with .dll files. In the second, I can't find either

Answer 1

I also got this message when running the lesson 1 of Getting and Cleaning Data on Swirl.
Package ‘dplyr’ loaded correctly!
Error in loadNamespace(name) : there is no package called ‘lazyeval’
Reinstalling packages also didn't work
It was solved by updating my R version using the {installr} package

Answer 2

It can be resolved by installing the package with all the dependencies, using:
install.packages("dplyr", dependencies = TRUE)
It will install others like lazyeval, knitr etc. Worked for me to solve the
Error in loadNamespace(name): there is no package called ‘lazyeval’ issue.