dyld: Symbol not found: __cg_jpeg_resync_to_restart

Question

I\'m trying to run a java version of PowerLoom, but when I try to start it in the terminal, I get the following error message:

dyld: Symbol not found: __cg_jpeg_         


        

Answer 1

You likely have HomeBrew installed (or something like it). Something is setting DYLD_LIBRARY_PATH to /usr/local/lib first and you get a collision with Jpeg installed in /usr/local/lib/libJPEG.dylib instead of using the system version.

The (wrongly demoted) answer given by @Pierz above is correct.

Answer 2

You could try this in shell:

$ cd /System/Library/Frameworks/ImageIO.framework/Versions/A/Resources

$ sudo ln -sf libJPEG.dylib /usr/local/lib/libJPEG.dylib

$ sudo ln -sf libPng.dylib /usr/local/lib/libPng.dylib

$ sudo ln -sf libTIFF.dylib /usr/local/lib/libTIFF.dylib

$ sudo ln -sf libGIF.dylib /usr/local/lib/libGIF.dylib

Answer 3

If using Qt Creator, you have to uncheck the Add build library search path to DYLD_LIBRARY_PATH and DYLD_FRAMEWORK_PATH option from the Run section in the Projects tab:

Answer 4

This issue may be down to the application in question dynamically linking to the wrong version of the [libJPEG.dylib] library (it's also possible the correct version has been overwritten/modified). As explained in another question it is a problem that can occur when an application alters environment variables that control dynamic linking library location (e.g. On MacOS: DYLD_LIBRARY_PATH - more info see man dyld; On Linux: LD_LIBRARY_PATH - see man ld.so). It may be down to other factors such as dynamic link library config files but they have a system wide affect. You'll need to locate the variable setup in the application files and change it so that it prioritises the system paths e.g. (for MacOS):

export DYLD_LIBRARY_PATH=/usr/lib/:ADDITION_LIBRARY_PATH_LOCATION