试图找到并安装libstdc ++。so.5，用MATLAB运行C ++ [英] Trying to find and install libstdc++.so.5 to run C++ with mex for MATLAB

问题描述

我正在使用 BGL 库 MATLAB 找到此处 fileexchange 。在这个库中使用 Ubuntu 10.04 LTS 下的函数时，我收到此错误（Windows下无法正常运行此错误）。

  ???无效的MEX文件
'/ home / alex / Documents / MATLAB / MATLABsvnWorkingDir / Bloom / graphAnalysis / analysisAttempt2 / functi onsDownloaded / matlab_bgl-4.0.1 / matlab_bgl / private / components_mex.mexglx'：
 libstdc ++。 so.5：无法打开共享对象文件：没有这样的文件或
目录。 
 ==>错误组件在42 
 [ci sizes] = components_mex（A）; 
 ==>错误moduleize_graphs_Alex_hugeMats_BlondelCode at 16 
 [comnts，〜] = components（graph）; 
  

整个问题似乎与 libstdc ++。so.5 。我在synatpic包管理器中找不到。有这个线程讨论了问题，但我没有任何进展尝试过这些步骤。 / p>

我尝试了这里列出的解决方案：

  alex @ alex-laptop：〜/ Desktop $ sudo apt-get install libstdc ++。so.5 
阅读包列表...完成
构建依赖关系树
读取状态信息...完成
 E：找不到包libstdc ++。so.5 
 alex @ alex笔记本电脑：〜/ Desktop $ 
  

我也尝试过在网络上找到的其他解决方案没有解决问题。

解决方案

尝试使用

sudo apt-get install libstdc ++ 5

这应该安装包，包括所需的lib。

I am using the BGL libraries for MATLAB found here on fileexchange. I get this error when using a function from this library under Ubuntu 10.04 LTS (this error did not occur under Windows, where it worked normally).

??? Invalid MEX-file
'/home/alex/Documents/MATLAB/MATLABsvnWorkingDir/Bloom/graphAnalysis/analysisAttempt2/functi    onsDownloaded/matlab_bgl-4.0.1/matlab_bgl/private/components_mex.mexglx':
libstdc++.so.5: cannot open shared object file: No such file or
directory.
Error in ==> components at 42
[ci sizes] = components_mex(A);
Error in ==> modularize_graphs_Alex_hugeMats_BlondelCode at 16
[comnts,~] = components(graph);

The whole problem appears to be with libstdc++.so.5. I cannot find it in the synatpic package manager. There is this thread which discusses the problem but I have tried those steps without any progress.

I tried the solution listed here:

alex@alex-laptop:~/Desktop$ sudo apt-get install libstdc++.so.5
Reading package lists... Done
Building dependency tree       
Reading state information... Done
E: Couldn't find package libstdc++.so.5
alex@alex-laptop:~/Desktop$ 

I have also tried other solutions that I found on the web but nothing fixed the problem.

解决方案

Try using

sudo apt-get install libstdc++5

This should install the package, including the libs needed.

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