I have tried a lot in stackoverflow for this question, such as update.package
, install 'codetools', and some tips in stackoverflow- How should I deal with “package 'xxx' is not available” warning?
but it doesn't work.
The package seems to be installed, but can't be loaded-
library(survival)
## error:package ‘survival’ was built before R 3.0.0: please re-install it
@John It's amazing! I had used update.packages before, but it didn't work-just now it works! But there is still an warning -
@Ben Bolker