Changes between Version 10 and Version 11 of udg/ecoms/RPackage/prerequisites

Timestamp:

May 17, 2015 12:22:30 PM (7 years ago)

Author:

antonio

Comment:

--

udg/ecoms/RPackage/prerequisites

@@ -31 +31 @@
 {{{
 #!text/R
-> install.packages(“rJava”)  
+> install.packages("rJava")  
 }}}
 
 
-=== Linux users
+=== Linux
 
 Linux users can alternatively use the ''apt-get'' choice from the terminal:
@@ -47 +47 @@
 You can also find useful information about the installation and configuration of openJDK in [http://askubuntu.com/questions/98319/correct-installation-and-configuration-of-openjdk-and-r this thread] of the Ubuntu forum. 
 
-=== Windows / Mac
+=== Mac OS X
 
 Mac OS X comes with Java pre-installed, so everything should ‘just work’.
 
+=== Windows
+
 For Windows 7, you can find some quick advice on how to get up and running with R + rJava [http://stackoverflow.com/questions/7019912/using-the-rjava-package-on-win7-64-bit-with-r/7604469#7604469 at this link] 
+
+If an error likes this one appears on your `R` console:
+{{{
+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/antonio/Documents/R/win-library/3.2/rJava/libs/x64/rJava.dll':
+  LoadLibrary failure:  %1 no es una aplicación Win32 válida.
+
+Error : package 'rJava' could not be loaded
+}}}
+
+
+it can be due to a misconfiguration of `JAVA_HOME` environment variable. 
+
+Please check that the corresponfing value points to the '''correct Java version and bit architecture''' (32 or 64). 
+
+{{{
+#!text/R
+> Sys.getenv("JAVA_HOME")  
+}}}
+
+
+You can remove from system environment and restart `R` or remove from `R` sesssion:
+{{{
+#!text/R
+> if (Sys.getenv("JAVA_HOME")!="")
++     Sys.setenv("JAVA_HOME"="")
+}}}
+
+
+
+