R - Error : .onLoad failed in loadNamespace() for 'rJava'

Question

While loading rJava package, I receive this error:

Error : .onLoad failed in loadNamespace() for \'rJava\', details:
  call: inDL(x         


        

Answer 1

I have noticed in different fresh installations of R, RStudio and rJava in WIndows, that what fixes the error is:

1. Uninstall R
2. Reinstall R but only selecting one architecture. Example, x64, or x86, but not both. That tends to confuse R or RStudio when they are compiling.

In my case, I fixed the message

Error : .onLoad failed in loadNamespace() for 'rJava', details:
  call: inDL(x, as.logical(local), as.logical(now), ...)

error: unable to load shared object 'C:/Users/ankitagarwal5/Documents/R/win-library/3.2/rJava/libs/x64/rJava.dll':
  LoadLibrary failure:  %1 is not a valid Win32 application.

Following steps 1 and 2 above.