java.library.path,classpath Netbeans 8.0.2

Question

我刚安装了Matlab Runtime:

Distributor ID: Ubuntu
Description:    Ubuntu 15.04
Release:    15.04
Codename:   vivid

你可以找到Matlab的运行时间在这里,我在安装R2015b的情况下(9.0)*(MATLAB运行9.0,对于R2015b,旨在用MATLAB 8.6,这也是R2015b工作).

Matlab库安装到:/ usr/local/MATLAB

我正在使用Netbeans 8.0.2

java version "1.8.0_45"
Java(TM) SE Runtime Environment (build 1.8.0_45-b14)
Java HotSpot(TM) 64-Bit Server VM (build 25.45-b02, mixed mode) 

我从程序中得到的错误如下:

Exception in thread "main" java.lang.UnsatisfiedLinkError: Failed to find the required library libmwmclmcrrt.so.9.0 on java.library.path.
This library is typically installed along with MATLAB or the MCR. Its absence may indicate an issue with that installation or the current path configuration.
The MCR version that this component is trying to use is: 9.0.

在Matlab的安装上它确实说:

On the target computer, append the following to your LD_LIBRARY_PATH environment variable:  /usr/local/MATLAB/MATLAB_Runtime/v90/runtime/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/bin/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/sys/os/glnxa64:

我已将此行添加到项目>属性> VM选项:

-Djava.library.path="/usr/local/MATLAB/MATLAB_Runtime/v90/runtime/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/bin/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/sys/os/glnxa64:"

我使用:添加JAR /文件夹按钮将相同的文件夹添加到项目>属性>库中.

我已将以下代码行放入我的程序中:

System.out.println(System.getProperty("java.library.path"));

我正确输出为:

/usr/local/MATLAB/MATLAB_Runtime/v90/runtime/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/bin/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/sys/os/glnxa64:

但是,它仍然无法以相同的错误运行.

我安装了IntelliJ IDEA社区版,根本没有mods,代码运行没有任何问题.我真的希望与Netbeans保持联系,并希望了解这个问题.有任何想法吗？

IntelliJ加载了以下内容:

/usr/lib/jvm/java-1.8.0-openjdk-amd64/bin/java 
-Didea.launcher.port=7532 
-Didea.launcher.bin.path=/home/code/idea-IC-143.1821.5/bin 
-Dfile.encoding=UTF-8 
-classpath /usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/charsets.jar:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/cldrdata.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/dnsns.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/icedtea-sound.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/java-atk-wrapper.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/localedata.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/nashorn.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/sunec.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/sunjce_provider.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/sunpkcs11.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/ext/zipfs.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/jce.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/jsse.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/management-agent.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/resources.jar
:/usr/lib/jvm/java-1.8.0-openjdk-amd64/jre/lib/rt.jar

:/home/code/NetBeansProjects/CO2model/out/production/TestModelABC
:/home/code/NetBeansProjects/CO2model/TestModelABC/dist/lib/co2model.jar
:/home/code/NetBeansProjects/CO2model/TestModelABC/dist/lib/javabuilder.jar
:/home/code/NetBeansProjects/CO2model/for_redistribution_files_only/co2model.jar
:/home/code/idea-IC-143.1821.5/lib/idea_rt.jar com.intellij.rt.execution.application.AppMain test.Startup
.
:
:/usr/local/MATLAB/MATLAB_Runtime/v90/runtime/glnxa64
:/usr/local/MATLAB/MATLAB_Runtime/v90/bin/glnxa64
:/usr/local/MATLAB/MATLAB_Runtime/v90/sys/os/glnxa64
:
:/usr/java/packages/lib/amd64:/usr/lib/x86_64-linux-gnu/jni
:/lib/x86_64-linux-gnu
:/usr/lib/x86_64-linux-gnu
:/usr/lib/jni
:/lib
:/usr/lib

Answer 1

java.library.path是java用来查找本地库的路径。如果

• 路径中没有名为libmwmclmcrrt.so的文件
• 文件libmwmclmcrrt.so的权限不正确

所以我的建议是运行名称为 libmwmclmcrrt.so 的搜索来了解该文件是否在系统中。如果找到，您可以手动将其复制粘贴到此路径

/usr/local/MATLAB/MATLAB_Runtime/v90/runtime/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/bin/glnxa64:/usr/local/MATLAB/MATLAB_Runtime/v90/sys/os/glnxa64

如果已经存在于该路径中，也许您可​​以检查文件权限。

在大多数情况下，错误是由于找不到库而引起的。