libipopt.so.1：无法打开共享对象文件 [英] libipopt.so.1: Cannot open shared object file

问题描述

在执行 Ipopt 的基本安装后，我可以在 Ipopt-3.12.5 / Ipopt / examples / hs071_cpp 中使用命令

Upon performing the basic installation of Ipopt, I'm able to compile the example they provided in Ipopt-3.12.5/Ipopt/examples/hs071_cpp successfully using the command

g++ hs_071_main.cpp hs071_nlp.cpp -I/path/to/build/include/coin -L/path/to/build/lib -lipopt -llapack -lblas -lm -ldl

但是当我尝试运行 ./ a.out ，我收到错误：

But when I try to run ./a.out, I get the error:

error while loading shared libraries: 
libipopt.so.1: cannot open shared object file: No such file or directory

我已经定义了 $ LD_LIBRARY_PATH 在 .bashrc 中，我已经确认 ls $ LD_LIBRARY_PATH 显示 libipopt.so 和 libipopt.so.l

I've defined $LD_LIBRARY_PATH in .bashrc, and I've confirmed that ls $LD_LIBRARY_PATH shows libipopt.so and libipopt.so.l

推荐答案

您需要在设置环境变量后导出。

You need to export the environment variable after setting it.

尝试

export LD_LIBRARY_PATH=/whatever/path/you/want:/any/more/pathes/here:/and/here

默认情况下设置更好使用

When setting this by default better use

export LD_LIBRARY_PATH=${LD_LIBRARY_PATH}:/your/personal/so/lib/path1:/path2 

这样你就不会覆盖可能已经设置的任何系统范围的搜索路径。

This way you do not overwrite any system wide search paths which might already have been set.

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