In this example, I’ll explain how to solve the problems when trying load an R package due to rJava.įor this, you have to download and install the 64-bit version of Java on this page: Download Java 64-bit version for Windows. Hence, it is necessary to manually install the 64-bit version.Įxample 2: Fixing the Error: JAVA_HOME cannot be determined from the Registry Note that the Java download page suggests the 32-bit version by default.
You may have installed a 32-bit version of Java or you might not have installed Java at all. In opened web page choose Free java download. In order to install java on Mac, go to Safari browser and type. The reason for this usually is that you are using a 64-bit version of R, but not a 64-bit version of Java. In this video tutorial we will show you how to install java on Mac. So why does the error message “JAVA_HOME cannot be determined from the Registry” occur when we are trying to install the rJava package? R tries to install the rJava package as well, when we are installing the xlsx package. However, this problem does not occur because of the xlsx package, but because of the rJava package. # Failed with error: 'package 'rJava' could not be loaded'Īs you can see, the error “JAVA_HOME cannot be determined from the Registry” was returned to the RStudio console after installing and loading the xlsx package. # error: JAVA_HOME cannot be determined from the Registry sudo R CMD javareconf Source Step 2 - Start R After you've installed the Java JDK, start R. Step 1 - Double Check Your Work Things are looking good if you see this while typing: java -version Then run this command. onLoad failed in loadNamespace() for 'rJava', details: Read this tutorial on how to install the Java Development Kit using Homebrew. Install.packages("xlsx") # Install & load xlsx
onLoad failed in loadNamespace() for 'rJava', details: # call: fun(libname, pkgname) # error: JAVA_HOME cannot be determined from the Registry # Failed with error: 'package 'rJava' could not be loaded' Library ( "xlsx" ) # Loading required package: xlsx # Loading required package: xlsxjars # Loading required package: rJava # Error. packages ( "xlsx" ) # Install & load xlsx
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