Mac Library Not Loaded Image Not Found

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I've released and packaged an application, and I have a user reporting an error when trying to start the application:

I'm currently code-signing with the hardened runtime and these entitlements:

I saw an issue another application ran into, which suggests the problem was with @executable_path, and that they were able to solve their problem by adding the '' entitlement. I'm going to test that out and give it a shot!

However, the concerning aspect is I'm not able to reproduce this issue on any OSX environment I've tried. I have access to two environments:

- 10.14.6

- 10.15.3

I'm not able to reproduce this error on either machine - the application starts up successfully. I'd like to figure out how to test for this, so that I can verify the fix.

So two questions:

- Is there anything I should look at, aside from the allow-dyld-environment-variables entitlement?

- Is there any setting I should adjust so I can reproduce this issue locally?

Thank you for your help!

Problem :

Build an Intel® MKL program on Mac OS* with Intel® Fortran Compiler,

For example, compilers_and_libraries_2017.0.065,
> ifort main. f -o main -L$(MKLPATH) -I$(MKLINCLUDE) -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -lpthread

get compiler warning:
ld64 warning: indirect library libiomp5.dylib could not be loaded: file not found: libiomp5.dylib
Or runtime error:
dyld: Library not loaded: libiomp5.dylib
Referenced from: @rpath/libmkl_intel_thread.dylib
Reason: image not found
Trace/BPT trap
Root Cause :
Since MKL 11.2, the MKL libraries for Mac OS* have been integrated into Intel® C++/Fortran Compiler Professional Edition or Intel® C++/Fortran Composer XE for Mac OS* X. The default path of MKL libraries were changed from
to '/opt/intel/compilers_and_libraries_201*.*.***/mac/mkl'

for MKL version 11.0-11.1, please refer to '/opt/intel/Compiler/11.x/0xx/Frameworks/mkl/'
for MKL version 10.*, please refer to '/Library/Frameworks/Intel_MKL.framework/Versions/'

At the same time, the default OpenMP libraries (libiomp5.dylib, libiomp5.a) used by MKL are not in <MKL Libraries>/lib directory as in previous versions. They are under the Intel compiler lib directory now.
for instance, /opt/intel/compilers_and_libraries_2017.0.065/mac/compiler/lib

The Photos app will warn you if the Library is not accessible in this case, with the solution being to quit Photos and reconnect the drive before relaunching Photos.Designating the System Photo LibraryIf you want to use the moved Photos Library - or one of a collection of the Libraries - with a number of Apple services and features, such as synchronization with iCloud Photo Library, iCloud Photo Sharing, and My Photo Stream, you will need to designate it as the System Photo Library. Move mac photo library to external hard drive download.

If you use openMP in c++ application and build with Intel C++ compiler, please firstly make sure you have enable the option 'ICC Intel® C++ 17.*.***-Language' » 'Process OpenMp Directives'.
IPP is the same, please see the article XCode link error: 'file not found: libiomp5.dylib'


Mac Library Not Loaded Image Not Found 2017

For compiler warning:
Please refer to the MKL link line advisor.
the command line could be
>ifort main. f -o main -L$(MKLPATH) -I$(MKLINCLUDE) -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -openmp -lpthread
ifort main. f -o main -L$(MKLPATH) -I$(MKLINCLUDE) -lmkl_intel_lp64 -lmkl_intel_thread -lmkl_core -L/opt/intel/compilers_and_libraries_2017.0.065/mac/compiler/lib -liomp5 -lpthread


Get runtime error:
like dyld: Library not loaded: @rpath/lib[mkl ipp]_x.dylib

Root Cause:
You did not set environment variables of MKL/IPP path or did not link your application to MKL/IPP path.


Please add the path of lib<product>.dylib in system environment before run binary (The <product> could be 'mkl' or 'ipp'). There are two methods to realize the solution:

  • Run shell script file to set environment variables, for example, setting MKL:
    > /opt/intel/compilers_and_libraries_2017.*.***/mac/mkl/bin/ <ia32 intel64>
  • Or write command to set directly, for example, setting MKL:
    export DYLD_LIBRARY_PATH='/opt/intel/compilers_and_libraries_2017.*.***/mac/mkl/lib:$DYLD_LIBRARY_PATH

In Xcode 7.3.1 Development Environment:
Click solution/application, select 'All' and 'Combined', then find 'Linking', add 'Runpath search path' like following:

If after set the MKL library and Compiler library, you still got the error dyld: Library not loaded: @rpath/libimp5.dylib,

please consider the solutions provided in


Mac Library Not Loaded Image Not Found Dead

adding -Wl,-rpath,@executable_path options to your build command line.

Dyld Library Not Loaded Image Not Found

Before this solution, you must make sure you have already use Intel C++/Fortran compiler and set 'Header Search Path' and 'Library Search Path' and 'Other Link Flags'.
Learn more information about linking and compiling Intel MKL in Mac OS*, please see:
Compiling and linking MKL with Xcode*
How to link application against Intel MKL using XCode IDE

Mac Library Not Loaded Image Not Found Iphone

For more complete information about compiler optimizations, see our Optimization Notice.