UndefRefError in MAC OS Apple Silicon

[jinzhaohu]

Hi:

When I try to use this package, it keeps reminding me UndefRefError.

I have set ENV["MATLAB_HOME"]="/Applications/MATLAB_R2021b.app" in Julia and build MATLAB, but it didn't work.

Do you have any idea on how fix it?

THX!!

[GrantHecht]

I've run into this same issue as well. I expect it's due to running the native Apple Silicon version of Julia while attempting to use MATLAB which only currenrly supports x86 with Rosetta. Please note that I'm far from an expert on this topic so I may be compleately incorrect about this

I've gotten arround this issue by continuing to use Julia's x86 release for Mac when I need MATLAB interoperability.

[musm]

@GrantHecht are you also seeing the same problems as OP?

[GrantHecht]

@musm, I believe so. Here's a simple MWE with stack trace:

using MATLAB

mat"""
a = 1 + 2;
"""

ERROR: UndefRefError: access to undefined reference
Stacktrace:
 [1] MSession(bufsize::Int64; flags::String)
   @ MATLAB ~/.julia/packages/MATLAB/T20Ly/src/engine.jl:26
 [2] MSession (repeats 2 times)
   @ ~/.julia/packages/MATLAB/T20Ly/src/engine.jl:23 [inlined]
 [3] get_default_msession
   @ ~/.julia/packages/MATLAB/T20Ly/src/engine.jl:88 [inlined]
 [4] eval_string(stmt::String)
   @ MATLAB ~/.julia/packages/MATLAB/T20Ly/src/engine.jl:147
 [5] top-level scope
   @ ~/.julia/packages/MATLAB/T20Ly/src/matstr.jl:161

Note that this only occurs when using the ARM Julia release. I don't have any issues on my M1 Mac when using the x86 release through Rosetta.

[ViralBShah]

Others have reported this works fine recently. Please reopen if still an issue.