Hello,

I've installed "BioMedR" package on my computer, I run the following command to run the package:

library("BioMedR", lib.loc="~/R/win-library/3.4")

however, I can't get it running because of this error message:

-------------------------------------------------------------------------------------------------------------------------------

Error: package or namespace load failed for ‘BioMedR’:

 .onLoad failed in loadNamespace() for 'rJava', details:
  call: dirname(this$RuntimeLib)
  error: a character vector argument expected
---------------------------------------------------------------------------------------------------------------------------------

Could you please help me to solve this issue?

Thanks and best regards,

Adham

I found the solution:
to solve the problem of rJava, follow this procedure:

1- install the latest version of java and make sure it matches the R version you use, 64 bit or 32 bit.

2- type this line before calling rJava:

Sys.setenv(JAVA_HOME="C:/Program Files/Java/jre1.8.0_151/")

this command sets JAVA_HOME to the latest version you installed on computer(jre1.8.0_151 may be different in your case, so find the correct name of the file and type it)

then call rJava:
library("rJava")

----------------------OR--------------------------------

type the following command:
if (Sys.getenv("JAVA_HOME")!="")
  Sys.setenv(JAVA_HOME="")

this command sets the JAVA_HOME to null, then call rJava:
library(rJava)

both solutions worked very fine for me,however, I prefer the first one.

You can find a wonderful discussion of this problem on the following link:

https://stackoverflow.com/questions/7019912/using-the-rjava-package-on-win7-64-bit-with-r

Good luck ...