error: unable to load installed packages just now

Question

When I tried to run the R console in Eclipse, I got this error:

....Please make sure that R package \'rj\' (1.1 or compatible) is installed...

Answer 1

I got similar issue and was able to resolve it by running

R CMD javareconf -e

Output of the R CMD javareconf -e

Java interpreter : /export/apps/jdk/JDK-1_6_0_27/jre/bin/java
Java version     : 1.6.0_27
Java home path   : /export/apps/jdk/JDK-1_6_0_27
Java compiler    : /export/apps/jdk/JDK-1_6_0_27/bin/javac
Java headers gen.: /export/apps/jdk/JDK-1_6_0_27/bin/javah
Java archive tool: /export/apps/jdk/JDK-1_6_0_27/bin/jar
Java library path: /export/apps/jdk/JDK-1_6_0_27/jre/lib/amd64/server:/export/apps/jdk/JDK-1_6_0_27/jre/lib/amd64:/export/apps/jdk/JDK-1_6_0_27/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib
JNI linker flags : -L/export/apps/jdk/JDK-1_6_0_27/jre/lib/amd64/server -L/export/apps/jdk/JDK-1_6_0_27/jre/lib/amd64 -L/export/apps/jdk/JDK-1_6_0_27/jre/../lib/amd64 -L/usr/java/packages/lib/amd64 -L/usr/lib64 -L/lib64 -L/lib -L/usr/lib -ljvm
JNI cpp flags    : -I/export/apps/jdk/JDK-1_6_0_27/include -I/export/apps/jdk/JDK-1_6_0_27/include/linux

The following Java variables have been exported:
JAVA_HOME JAVA JAVAC JAVAH JAR JAVA_LIBS JAVA_CPPFLAGS JAVA_LD_LIBRARY_PATH
Running: /bin/bash

After setting LD_LIBRARY_PATH to the same value as JAVA_LD_LIBRARY_PATH as shown in the output above. I was able to install rj.

export LD_LIBRARY_PATH=/export/apps/jdk/JDK-1_6_0_27/jre/lib/amd64/server:/export/apps/jdk/JDK-1_6_0_27/jre/lib/amd64:/export/apps/jdk/JDK-1_6_0_27/jre/../lib/amd64:/usr/java/packages/lib/amd64:/usr/lib64:/lib64:/lib:/usr/lib

Run R and then install rj by

install.packages(c("rj", "rj.gd"), repos="http://download.walware.de/rj-1.1")