我成功地透過運行安裝了 rJavaR CMD javareconf -e | tee javareconf.out
cat javareconf.out
Java interpreter : /usr/lib/jvm/java-8-oracle/jre/bin/java
Java version : 1.8.0_201
Java home path : /usr/lib/jvm/java-8-oracle
Java compiler : /usr/lib/jvm/java-8-oracle/bin/javac
Java headers gen.: /usr/lib/jvm/java-8-oracle/bin/javah
Java archive tool: /usr/lib/jvm/java-8-oracle/bin/jar
trying to compile and link a JNI program
detected JNI cpp flags : -I/usr/lib/jvm/java-8-oracle/include -I/usr/lib/jvm/java-8-oracle/include/linux
detected JNI linker flags : -L/usr/lib/jvm/java-8-oracle/jre/lib/amd64/server -ljvm
gcc -std=gnu99 -I"/usr/share/R/include" -DNDEBUG -I/usr/lib/jvm/java-8-oracle/include -I/usr/lib/jvm/java-8-oracle/include/linux -fpic -g -O2 -fdebug-prefix-map=/build/r-base-1SEA_D/r-base-3.5.1=. -fstack-protector-strong -Wformat -Werror=format-security -Wdate-time -D_FORTIFY_SOURCE=2 -g -c conftest.c -o conftest.o
gcc -std=gnu99 -shared -L/usr/lib/R/lib -Wl,-Bsymbolic-functions -Wl,-z,relro -o conftest.so conftest.o -L/usr/lib/jvm/java-8-oracle/jre/lib/amd64/server -ljvm -L/usr/lib/R/lib -lR
The following Java variables have been exported:
JAVA_HOME JAVA JAVAC JAVAH JAR JAVA_LIBS JAVA_CPPFLAGS JAVA_LD_LIBRARY_PATH
Running: /bin/bash
我也在 R 中安裝了 rJava 套件 ( install.packages("rJava"))。現在，我可以使用 R 中的 rJava，但不能使用 RStudio。
我嘗試更改 LD_LIBRARY_PATH 以包含 Java lib，然後從 RStudio 中安裝 rJava，但沒有成功。export LD_LIBRARY_PATH="/usr/lib/jvm/java-8-oracle/jre/lib/amd64/server:$LD_LIBRARY_PATH"
有趣的是，如果我打開 RStudio，sudo rstudio kill-all它的工作方式與 R 中一樣，但如果我透過點擊擴充座中的圖示開啟 RStudio，則會收到以下錯誤：
> library(rJava)
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 '/home/kzkedzierska/R/x86_64-pc-linux-gnu-library/3.5/rJava/libs/rJava.so':
libjvm.so: cannot open shared object file: No such file or directory
我嘗試重新安裝 RStudio（sudo apt purge rstudio並手動刪除主目錄中留下的 .rstudio 目錄），但這沒有幫助...
知道我能做些什麼來解決這個問題嗎？
編輯：
現在我看到問題是 R CMD javareconf 沒有更改 RStudio 的路徑，來自 RStudio 的 rJava 安裝日誌：
checking Java support in R... present:
interpreter : '/usr/lib/jvm/default-java/bin/java'
archiver : '/usr/lib/jvm/default-java/bin/jar'
compiler : '/usr/lib/jvm/default-java/bin/javac'
header prep.: ''
cpp flags : '-I/usr/lib/jvm/default-java/include -I/usr/lib/jvm/default-java/include/linux'
java libs : '-L/usr/lib/jvm/default-java/lib/server -ljvm'
checking whether Java run-time works... ./configure: line 3766: /usr/lib/jvm/default-java/bin/java: No such file or directory
no
configure: error: Java interpreter '/usr/lib/jvm/default-java/bin/java' does not work
ERROR: configuration failed for package ‘rJava’
* removing ‘/home/kzkedzierska/R/x86_64-pc-linux-gnu-library/3.5/rJava’
知道如何改變這些嗎？相當於R CMD javareconf -e在 Rstudio 中運行？
