sudo R CMD javareconf解决方案不起作用

Question

我正在尝试在RStudio中运行rJava，但没有成功：

Error: package or namespace load failed for ‘rJava’:
 .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

使用rJava问题的通用解决方案，'sudo R CMD javareconf'不起作用，并且给了我这个输出：

Java interpreter : /usr/bin/java
Java version     : 11.0.6
Java home path   : /Library/Java/JavaVirtualMachines/jdk-11.0.6.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 -I"/Library/Frameworks/R.framework/Resources/include" -DNDEBUG -I/Library/Java/JavaVirtualMachines/jdk-11.0.6.jdk/Contents/Home/include -I/Library/Java/JavaVirtualMachines/jdk-11.0.6.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-7: warning: no such sysroot directory: '/Library/Developer/CommandLineTools/SDKs/MacOSX.sdk' [-Wmissing-sysroot]
In file included from conftest.c:1:
/Library/Java/JavaVirtualMachines/jdk-11.0.6.jdk/Contents/Home/include/jni.h:39:10: fatal error: 
      'stdio.h' file not found
#include <stdio.h>
         ^~~~~~~~~
1 error generated.
make: *** [conftest.o] Error 1
Unable to compile a JNI program


JAVA_HOME        : /Library/Java/JavaVirtualMachines/jdk-11.0.6.jdk/Contents/Home
Java library path: 
JNI cpp flags    : 
JNI linker flags : 
Updating Java configuration in /Library/Frameworks/R.framework/Resources
Done.

有人之前遇到过此错误，并且知道如何解决吗？

Answer 1

他们升级到Catalina之后，最近我与同事遇到了这样的问题。我的解决方案是再次安装有问题的JDK版本。看来您的系统在11.0.6和11.0.1之间有混淆。

1. 转到此页面：https://www.oracle.com/technetwork/java/javase/downloads/java-archive-javase11-5116896.html

2. 下载并安装11.0.1

3. sudo R CMD javareconf

4. sudo Rstudio＃elevate privs

5. install.packages（“ rJava”）

如果不起作用，请从步骤2再试一次，但请使用https://www.oracle.com/technetwork/java/javase/overview/index.html中的11.0.6。>