using xlsx with R jupyter notebook

Question

I am trying to install and use the xlsx lackage in R in a Jupyter notebook on a Mac.

install.packages("xlsx") 

seems to run OK but

library("xlsx")

results in:

Error: package or namespace load failed for 'xlsx':
 .onLoad failed in loadNamespace() for 'rJava', details:
  call: dyn.load(file, DLLpath = DLLpath, ...)
  error: unable to load shared object '/Library/Frameworks/R.framework/Versions/3.6/Resources/library/rJava/libs/rJava.so':
  dlopen(/Library/Frameworks/R.framework/Versions/3.6/Resources/library/rJava/libs/rJava.so, 6): Library not loaded: /Library/Java/JavaVirtualMachines/jdk-11.0.1.jdk/Contents/Home/lib/server/libjvm.dylib
  Referenced from: /Library/Frameworks/R.framework/Versions/3.6/Resources/library/rJava/libs/rJava.so
  Reason: image not found
Traceback:

1. library("xlsx")
2. tryCatch({
 .     attr(package, "LibPath") <- which.lib.loc
 .     ns <- loadNamespace(package, lib.loc)
 .     env <- attachNamespace(ns, pos = pos, deps, exclude, include.only)
 . }, error = function(e) {
 .     P <- if (!is.null(cc <- conditionCall(e))) 
 .         paste(" in", deparse(cc)[1L])
 .     else ""
 .     msg <- gettextf("package or namespace load failed for %s%s:\n %s", 
 .         sQuote(package), P, conditionMessage(e))
 .     if (logical.return) 
 .         message(paste("Error:", msg), domain = NA)
 .     else stop(msg, call. = FALSE, domain = NA)
 . })
3. tryCatchList(expr, classes, parentenv, handlers)
4. tryCatchOne(expr, names, parentenv, handlers[[1L]])
5. value[[3L]](cond)
6. stop(msg, call. = FALSE, domain = NA)

I tried sudo R CMD javareconf which resulted in:

Java interpreter : /usr/bin/java Java version : 13.0.2 Java home path : /Library/Java/JavaVirtualMachines/adoptopenjdk-13-openj9.jdk/Contents/Home Java compiler : /usr/bin/javac Java headers gen.: /usr/bin/javah Java archive tool: /usr/bin/jar

trying to compile and link a JNI program detected JNI cpp flags : -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/darwin detected JNI linker flags : -L$(JAVA_HOME)/lib/default -ljvm clang -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13-openj9.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-13-openj9.jdk/Contents/Home/include/darwin -isysroot /Library/Developer/CommandLineTools/SDKs/MacOSX.sdk -I/usr/local/include -fPIC -Wall -g -O2 -c conftest.c -o conftest.o clang -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/usr/local/lib -o conftest.so conftest.o -L/Library/Java/JavaVirtualMachines/adoptopenjdk-13-openj9.jdk/Contents/Home/lib/default -ljvm -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation

JAVA_HOME : /Library/Java/JavaVirtualMachines/adoptopenjdk-13-openj9.jdk/Contents/Home Java library path: $(JAVA_HOME)/lib/default JNI cpp flags : -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/darwin JNI linker flags : -L$(JAVA_HOME)/lib/default -ljvm Updating Java configuration in /Library/Frameworks/R.framework/Resources Done.

What am I missing?

Answer 1

library(readxl)

df<- read_xlsx(path,sheet= sheet number) #use this if you want to import xlsx

df<- read_xls(path,sheet= sheet number) #use this if you want to import xls