title: Error: Package or namespace load failed
body: <p>I am getting the following error when I am loading a few libraries in R:</p>
  
  <blockquote>
    <p>library(forecast)
    Error : object ‘f_eval’ is not exported by 'namespace:lazyeval'
    In addition: Warning message:
    package ‘forecast’ was built under R version 3.3.2 
    Error: package or namespace load failed for ‘forecast’</p>
    
    <p>library(tsoutliers)
    Error : object ‘f_eval’ is not exported by 'namespace:lazyeval'
    In addition: Warning message:
    package ‘tsoutliers’ was built under R version 3.3.2 
    Error: package or namespace load failed for ‘tsoutliers’</p>
  </blockquote>
  
  <p>I have tried reinstalling the packages but it didn't help. Also, I was able to use the forecast package previously but I started facing this error post the installation of tsoutliers package. </p>
  
  <p>How can I resolve this issue?</p>