库未加载:Matlab中的@ loader_path/libmex.dylib [英] Library not loaded: @loader_path/libmex.dylib in matlab

问题描述

macos high sierra 10.13.1 xcode 9.2 matlab 2017b

macos high sierra 10.13.1 xcode 9.2 matlab 2017b

在2017b版本的Mac matlab中运行程序时，我尝试从此链接运行pmtk3运行时，我在运行第二条命令时遇到以下错误

while running a program in mac matlab in 2017b version, I tried to run pmtk3 from this link and while running I got the following error while running second command

1. 步骤:

1. 运行initPmtk3.m(需要几分钟)
2. 运行testPmtk3.m(需要一分钟)
3. 运行runDemos.m(大约需要1个小时)

错误:

'/Users/laxmikadariya/Documents/MATLAB/pmtk3-master/pmtksupportCopy/markSchmidt-9march2011/markSchmidt/minFunc/lbfgsC.mexmaci64':
dlopen(/Users/laxmikadariya/Documents/MATLAB/pmtk3-master/pmtksupportCopy/markSchmidt-9march2011/markSchmidt/minFunc/lbfgsC.mexmaci64,
6): Library not loaded: @loader_path/libmex.dylib
  Referenced from:
  /Users/laxmikadariya/Documents/MATLAB/pmtk3-master/pmtksupportCopy/markSchmidt-9march2011/markSchmidt/minFunc/lbfgsC.mexmaci64
    Reason: image not found.

如何在matlab mac中解决此问题?

How can I solve this issue in matlab mac?

我尝试将.bash_profile中的DYLD_LIBRARY_PATH设置为 DYLD_LIBRARY_PATH ='/Applications/MATLAB_R2017b.app/bin/maci64:/Applications/MATLAB_R2017b.app/sys/os/maci64'

I tried to set DYLD_LIBRARY_PATH in .bash_profile as DYLD_LIBRARY_PATH='/Applications/MATLAB_R2017b.app/bin/maci64:/Applications/MATLAB_R2017b.app/sys/os/maci64'

这不能解决问题

推荐答案

lbfgsC.mexmaci64文件已预编译，并带有2012年的时间戳.此后，MacOS上发生了很多变化...:)

The lbfgsC.mexmaci64 file comes pre-compiled, and with a time-stamp from 2012. Many things have changed on MacOS since then... :)

在终端窗口中，我尝试过:

In a terminal window, I tried:

$> otool -L lbfgsC.mexmaci64
lbfgsC.mexmaci64:
    @loader_path/libmx.dylib (compatibility version 0.0.0, current version 0.0.0)
    @loader_path/libmex.dylib (compatibility version 0.0.0, current version 0.0.0)
    @loader_path/libmat.dylib (compatibility version 0.0.0, current version 0.0.0)
    /usr/lib/libstdc++.6.dylib (compatibility version 7.0.0, current version 7.4.0)
    /usr/lib/libgcc_s.1.dylib (compatibility version 1.0.0, current version 1.0.0)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 111.1.4)

如您所见，

它使用@loader_path引用了MATLAB的库，这是错误的.应该是@rpath.

As you can see, it references MATLAB's libraries using @loader_path, which is wrong. That should be @rpath.

我尝试从MATLAB命令提示符下重新编译MEX文件:

I tried recompiling the MEX-file, from the MATLAB command prompt:

>> cd pmtk3/pmtksupportCopy/markSchmidt-9march2011/markSchmidt/minFunc
>> mex -compatibleArrayDims lbfgsC.c

-compatibleArrayDims选项是必需的，因为代码很旧，并且使用int表示数组大小(32位)，而不是mwSize(64位).

The -compatibleArrayDims option is necessary because the code is very old, and uses int for array sizes (32 bits), rather than mwSize (64 bits).

在终端窗口中，我现在看到:

In a terminal window I now see:

$> otool -L lbfgsC.mexmaci64
lbfgsC.mexmaci64:
    @rpath/libmx.dylib (compatibility version 0.0.0, current version 0.0.0)
    /usr/lib/libc++.1.dylib (compatibility version 1.0.0, current version 400.9.0)
    /usr/lib/libSystem.B.dylib (compatibility version 1.0.0, current version 1252.0.0)

这看起来好多了，它应该使用@rpath. MEX文件现在已运行，这意味着链接程序问题已解决.

This looks a lot better, it's using @rpath as it should. The MEX-file now ran, meaning that the linker problem is solved.

在同一目录中还有另一个MEX文件，它将具有相同的问题.您必须同时编译该文件:

There is another MEX-file in this same directory, it will have the same problem. You'll have to compile that one at the same time:

>> mex -compatibleArrayDims mcholC.c

这篇关于库未加载:Matlab中的@ loader_path/libmex.dylib的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！