There's an older post from a year ago, here, that touches upon a similar issue. Now I'm facing almost axactly the same issue as Bikash was approximately a year ago. However, the solution suggested there, does not seem to work in my case.
The error message when loading {sjPlot} with library(sjPlot) reads:
Error: package or namespace load failed for ‘sjPlot’
It also tells me (loosely translated from German):
Error: Object ‘asis_output’ not exported by 'namespace:knitr'
So whatever that means, I thought I try loading {knitr} first and then try loading {sjPlot} again. But I ran into the exact same error message...
Thanks in advance!