I already downloaded package readxl and xlsx and java, but it still cannot work.
Library rjava error install#
If you might (for some reason) work on both versions of R, you can install both version of Java (Installing the “Java Runtime Environment” is probably good enough for your needs). Every time I run it, I get an error( See the attachment). You can pick the exact version of Java you wish to install from this link.
Library rjava error windows 7#
This problem can easily effect Windows 7 users, since they might have installed a version of Java that is different than the version of R they are using. Hi John, Am um 22:07 schrieb John Sorkin: > Windows 7 64-bit > R 3.1.3 > RStudio > I am having difficulty loading and installing the xlsx.
install Java based on system requirement (64 bit or 32 bit). If you have more than 1 versions of R, make sure you delete rJAVA package from all of them. Unless you re-compile rJava against your Java and fix the paths it will only work via the R script, not otherwise - this is due to the binaries that Oracle is supplying. delete rJAVA library from Doc>R>win-library. Please do NOT set JAVAHOME - you're more likely to get it wrong and break things. 64-bit Java or 32-bit Java) that fits to the type of R version that you are using (i.e. r-suzuki this has nothing to do with JAVAHOME - what you describe is expected. This error is often resolved by installing a Java version (i.e. It is most likely that Java was not installed (or that the registry is corrupt). The error tells us that there is no entry in the Registry that tells R where Java is located. onLoad failed in loadNamespace() for ‘rJava’, details:Įrror: JAVA_HOME cannot be determined from the Registry library (rJava) Error: package or namespace load failed for ‘rJava’. Note that if not ALL of the configuration settings are filled out after running 'R CMD javareconf', this usually means that rJava won't work and your Java installation/configuration is insufficient.In case you tried loading a package that depends on the package (by Simon Urbanek), you might came across the following error:Įrror. This will attempt to configure Java properly on your system for use with Revolution R Enterprise.
On Linux, it is also recommended that you run the command : The same settings are required on Linux, however the paths will be different:ĬLASSPATH: /usr/java/jdk1.7.0_02/jre/lib/ext Make sure that the environment variables 'RPATH' and 'RHOME' are BOTH set and point to the directory: Your path should include the directories: 'C:\Program Files\Java\jre6\bin\server' and 'C:\Revolution\R-Enterprise-7.3\R-3.1.1\bin\圆4'. On Windows, goto 'Control Panel -> System -> Advanced Settings -> Environment Variables'. 'C:\Program Files\Java\jdk1.7.0_02\jre\lib\ext'Ĭheck your system PATH settings. Make sure that the Java 'CLASSPATH' variable is set properly.įor the 64-bit version of the JDK, this is typically set to something like the following(on Windows): For 64-bit Revolution R you need to make sure that you have a 64-bit version of Java installed. Make sure that the environment variable 'JAVA_HOME' is set properly and points to a 64-bit version jof Java(JDK or SE You should check the following on Windows: Their are a number of environment variables and paths that need to be set on your system, in order for the 'rJava' package onLoad failed in loadNamespace() for 'rJava' Solution
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