嘗試安裝 rJava 時出現錯誤消息

Question

我正在嘗試安裝 rJava，但它不工作。 無論我安裝哪個版本的 Java，我總是遇到同樣的錯誤。 我已經嘗試安裝以前的 Java 版本，但這不起作用。 我還嘗試將 JAVA_HOME 設置為 JDK 文件夾，但似乎沒有任何效果。 我正在使用Windows10。 代碼和錯誤：

> install.packages("rJava")
Installing package into ‘C:/Users/x/Documents/R/win-library/3.6’
(as ‘lib’ is unspecified)

  There is a binary version available but the source version is later:
      binary source needs_compilation
rJava 0.9-12 0.9-13              TRUE

installing the source package ‘rJava’

trying URL 'https://cran.rstudio.com/src/contrib/rJava_0.9-13.tar.gz'
Content type 'application/x-gzip' length 664898 bytes (649 KB)
downloaded 649 KB

* installing *source* package 'rJava' ...
** package 'rJava' successfully unpacked and MD5 sums checked
** using staged installation
Generate Windows-specific files (src/jvm-w32) ...
make: Entering directory '/cygdrive/c/Users/x/AppData/Local/Temp/RtmpQffZ3r/R.INSTALL35acefc1be9/rJava/src/jvm-w32'
C:/RBuildTools/3.5/mingw_64/bin/dlltool --as C:/RBuildTools/3.5/mingw_64/bin/as  --input-def jvm64.def --kill-at --dllname jvm.dll --output-lib libjvm.dll.a
C:/RBuildTools/3.5/mingw_64/bin/gcc  -O2 -c -o findjava.o findjava.c
C:/RBuildTools/3.5/mingw_64/bin/gcc  -s -o findjava.exe findjava.o
make: Leaving directory '/cygdrive/c/Users/x/AppData/Local/Temp/RtmpQffZ3r/R.INSTALL35acefc1be9/rJava/src/jvm-w32'
Find Java...
  JAVA_HOME=C:/PROGRA~1/Java/JDK18~1.0_2/jre
=== Building JRI ===
  JAVA_HOME=C:/PROGRA~1/Java/JDK18~1.0_2/jre
  R_HOME=C:/PROGRA~1/R/R-36~1.3
JDK has no javah.exe - using javac -h . instead
Creating Makefiles ...
Configuration done.
make -C src JRI.jar
make[1]: Entering directory '/cygdrive/c/Users/x/AppData/Local/Temp/RtmpQffZ3r/R.INSTALL35acefc1be9/rJava/jri/src'
C:/PROGRA~1/Java/JDK18~1.0_2/jre/bin/javac -h . -d . ../RList.java ../RBool.java ../RVector.java ../RMainLoopCallbacks.java ../RConsoleOutputStream.java ../Mutex.java ../Rengine.java ../REXP.java ../RFactor.java ../package-info.java
sh: C:/PROGRA~1/Java/JDK18~1.0_2/jre/bin/javac: No such file or directory
make[1]: *** [Makefile.all:41: org/rosuda/JRI/Rengine.class] Error 127
make[1]: Leaving directory '/cygdrive/c/Users/x/AppData/Local/Temp/RtmpQffZ3r/R.INSTALL35acefc1be9/rJava/jri/src'
make: *** [Makefile.all:19: src/JRI.jar] Error 2
**** WARNING: JRI could NOT be built
Set IGNORE=1 if you want to build rJava anyway.
ERROR: configuration failed for package 'rJava'
* removing 'C:/Users/x/Documents/R/win-library/3.6/rJava'
Warning in install.packages :
  installation of package ‘rJava’ had non-zero exit status

謝謝您的幫助！

Answer 1

我不建議從源代碼安裝 rJava，因為它完全沒有必要，而且在 Windows 上編譯軟件包需要更好地了解工具、Java 和您的系統。 由於您使用的是 Windows，請使用從 CRAN 安裝 rJava

install.packages("rJava", type="win.binary")