Failed to load rcdk because of rJava

r$> library(rcdk)                                                                                                       
Loading required package: rcdklibs
Loading required package: rJava
Error: package or namespace load failed for ‘rJava’:
 .onLoad failed in loadNamespace() for 'rJava', details:
  call: dyn.load(jli, FALSE)
  error: unable to load shared object '/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/jli/libjli.dylib':
  dlopen(/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/jli/libjli.dylib, 10): no suitable image found.  Did find:
        /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/jli/libjli.dylib: mach-o, but wrong architecture
        /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/jli/libjli.dylib: mach-o, but wrong architecture
Error: package ‘rJava’ could not be loaded

I came across this similar thread therefore I tried sudo R CMD javareconf but it does not work for me.

chrislam@ChrisLams-MBP MVA_DNF % sudo R CMD javareconf
Password:
Java interpreter : /usr/bin/java
Java version     : 11.0.10
Java home path   : /Library/Java/JavaVirtualMachines/adoptopenjdk-11.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/server -ljvm
clang -arch arm64 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/include/darwin  -I/opt/R/arm64/include   -fPIC  -falign-functions=64 -Wall -g -O2  -c conftest.c -o conftest.o
clang -arch arm64 -dynamiclib -Wl,-headerpad_max_install_names -undefined dynamic_lookup -single_module -multiply_defined suppress -L/Library/Frameworks/R.framework/Resources/lib -L/opt/R/arm64/lib -o conftest.so conftest.o -L/Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/server -ljvm -F/Library/Frameworks/R.framework/.. -framework R -Wl,-framework -Wl,CoreFoundation
ld: warning: ignoring file /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/server/libjvm.dylib, building for macOS-arm64 but attempting to link with file built for macOS-x86_64


JAVA_HOME        : /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home
Java library path: $(JAVA_HOME)/lib/server
JNI cpp flags    : -I$(JAVA_HOME)/include -I$(JAVA_HOME)/include/darwin
JNI linker flags : -L$(JAVA_HOME)/lib/server -ljvm
Updating Java configuration in /Library/Frameworks/R.framework/Resources
Done.

the following is my Sys.info() and my radian details

r$> Sys.info()                                                                                                                           
                                                                                               sysname 
                                                                                              "Darwin" 
                                                                                               release 
                                                                                              "20.3.0" 
                                                                                               version 
"Darwin Kernel Version 20.3.0: Thu Jan 21 00:06:51 PST 2021; root:xnu-7195.81.3~1/RELEASE_ARM64_T8101" 
                                                                                              nodename 
                                                                                  "ChrisLams-MBP.home" 
                                                                                               machine 
                                                                                               "arm64" 
                                                                                                 login 
                                                                                                "root" 
                                                                                                  user 
                                                                                            "chrislam" 
                                                                                        effective_user 
                                                                                            "chrislam"

chrislam@ChrisLams-MBP MVA_DNF % radian
R version 4.1.0 (2021-05-18) -- "Camp Pontanezen"
Platform: aarch64-apple-darwin20 (64-bit)`

chrislam@ChrisLams-MBP ~ % java -version
openjdk version "11.0.10" 2021-01-19
OpenJDK Runtime Environment AdoptOpenJDK (build 11.0.10+9)
OpenJDK 64-Bit Server VM AdoptOpenJDK (build 11.0.10+9, mixed mode)

[psobolewskiPhD]

Yeah this line in the error /Library/Java/JavaVirtualMachines/adoptopenjdk-11.jdk/Contents/Home/lib/jli/libjli.dylib: mach-o, but wrong architecture Means you have mixed architectures. On Apple Silicon all components need to be either x86, so the whole kit and caboodle is emulated via Rosetta or all arm64 so everything is native. Looks like your R is native (arm64), meanwhile AdoptOpenJDK does not yet have a native JDK/JRE. You can install a native one from homebrew: https://formulae.brew.sh/formula/openjdk#default Or from Azul: https://www.azul.com/downloads/?os=macos&architecture=arm-64-bit You may need to install the package from source, but I think most if not all CRAN packages are now arm64 aware.

If you need to use Adopt specifically, download x86 R and use that with your AdoptOpenJDK (with a speed penalty).

[fdq09eca]

> install.packages(rcdk, type"source")
Error: unexpected string constant in "install.packages(rcdk, type"source""
> install.packages(rcdk, type="source")
Error in install.packages(rcdk, type = "source") : 
  object 'rcdk' not found
> install.package(rcdk, type="source")
Error in install.package(rcdk, type = "source") : 
  could not find function "install.package"
> install.packages("rcdk", type="source")
trying URL 'https://cran.ma.imperial.ac.uk/src/contrib/rcdk_3.5.0.tar.gz'
Content type 'application/x-gzip' length 270214 bytes (263 KB)
==================================================
downloaded 263 KB

* installing *source* package ‘rcdk’ ...
** package ‘rcdk’ successfully unpacked and MD5 sums checked
** using staged installation
** R
** data
*** moving datasets to lazyload DB
** inst
** byte-compile and prepare package for lazy loading
sh: line 1: 42816 Trace/BPT trap: 5       R_TESTS= '/Library/Frameworks/R.framework/Resources/bin/R' --no-save --no-restore --no-echo 2>&1 < '/var/folders/t6/qy2rcbdx0g9_fv98q1g48v_h0000gn/T//RtmpxRdKiW/filea73973abd4a4'
ERROR: lazy loading failed for package ‘rcdk’
* removing ‘/Library/Frameworks/R.framework/Versions/4.1-arm64/Resources/library/rcdk’

The downloaded source packages are in
	‘/private/var/folders/t6/qy2rcbdx0g9_fv98q1g48v_h0000gn/T/RtmpRx3rbx/downloaded_packages’
Warning message:
In install.packages("rcdk", type = "source") :
  installation of package ‘rcdk’ had non-zero exit status

seems it does not work, I tried their to install by devtools as suggested by CDK-R repo

library(devtools)
install_github("https://github.com/CDK-R/rcdklibs")
install_github("https://github.com/CDK-R/cdkr", subdir="rcdk")

but still not success. I think the most problematic is the dependence rcdklibs.