install.packages("RWeka") There is a binary version available but the source version is later: binary source needs_compilation RWeka 0.4-26 0.4-37 FALSE installing the source package ‘RWeka’ trying URL 'https://cran.rstudio.com/src/contrib/RWeka_0.4-37.tar.gz' Content type 'application/x-gzip' length 413401 bytes (403 KB) ================================================== downloaded 403 KB Warning in strptime(xx, f <- "%Y-%m-%d %H:%M:%OS", tz = tz) : unknown timezone 'zone/tz/2018c.1.0/zoneinfo/America/New_York' * installing *source* package ‘RWeka’ ... ** package ‘RWeka’ successfully unpacked and MD5 sums checked ** R ** inst ** preparing package for lazy loading ** help *** installing help indices ** building package indices ** installing vignettes ** testing if installed package can be loaded Error : .onLoad failed in loadNamespace() for 'RWeka', details: call: .jnew("weka.core.WekaPackageManager") error: java.lang.UnsupportedClassVersionError: weka/core/WekaPackageManager : Unsupported major.minor version 52.0 Error: loading failed Execution halted ERROR: loading failed * removing ‘/Library/Frameworks/R.framework/Versions/3.3/Resources/library/RWeka’ Warning in install.packages : installation of package ‘RWeka’ had non-zero exit status The downloaded source packages are in ‘/private/var/folders/7n/5cg3f3jj49j1hf8k8xy6w__80000gn/T/RtmpUGMKC8/downloaded_packages’ library("RWeka") Error in library("RWeka") : there is no package called ‘RWeka’
Your Java is not compatible with the version that is required by Weka. Try to read documentation and/or update Java to the latest version.
Thanks for your help!
but I checked my Java version and seems updated already. I installed java this year. I still have the issues install RWeka. Is my Java correct version?