Hi Dahua,

I think it's great that you made this package as it will be very useful.

However, when I call restart_default_msession() I received the following error:
ERROR: could not load module libeng: dlopen(libeng.dylib, 9): image not found
in load_libeng at /Users/nfoti/src/julia-modules/MATLAB.jl/src/mxbase.jl:42
in MSession at /Users/nfoti/src/julia-modules/MATLAB.jl/src/engine.jl:20
in restart_default_msession at /Users/nfoti/src/julia-modules/MATLAB.jl/src/engine.jl:66
in restart_default_msession at /Users/nfoti/src/julia-modules/MATLAB.jl/src/engine.jl:69

I have verified that the command matlab is on my path and I exported MATLAB_HOME. I'm not sure where libeng is on Linux, but on OSX it appears to live inside the bin/ directory in the Matlab application folder. So maybe the load_libeng function needs to also look there on OSX.

Thanks.

cc: @ChrisRackauckas
(not sure if attobot is installed)
bug fixes: matlab home path finding on osx
others: depwarns on 0.6

Seems to be only an issue on windows.
Look at ZData: [1�0 double]
On linux this shows correctly 1×0

julia> using MATLAB
julia> x = linspace(0,1,10)
julia> eval_string("h=plot($x)")

h =

  Line with properties:

              Color: [0 0.4470 0.7410]
          LineStyle: '-'
          LineWidth: 0.8000
             Marker: 'none'
         MarkerSize: 6
    MarkerFaceColor: 'none'
              XData: [1 2 3 4 5 6 7 8 9 10]
              YData: [0 0.1111 0.2222 0.3333 0.4444 0.5556 0.6667 0.7778 0.8889 1]
              ZData: [1�0 double]

I would like to share my experience with installing a new version of MATLAB (Ubuntu 16.04). From what I understood, MATLAB path is determined by which matlab during precompilation, which returns a path to a particular version. If a new version of MATLAB is installed, it will not be automatically picked up if the precompiled module already exists, unless you force recompilation with Base.compilecache("MATLAB"). I am suggesting that either this should be documented, or perhaps a symlink to MATLAB installation could be used instead.

This example reproducibly fails:

julia> x = [-10.:0.1:10.]
1-element Array{FloatRange{Float64},1}:
 -10.0:0.1:10.0

julia> y = [-10.:0.1:10.]
1-element Array{FloatRange{Float64},1}:
 -10.0:0.1:10.0

julia> xx, yy = mxcall(:meshgrid, 2, x, y)
Internal Error: A primary message table for module 77 was already registered with a differing collection of error messages.Severe:
The program '[14008] C:\Julia\Julia-0.5-latest\bin\julia.exe: Native' has exited with code 1 (0x1).

Julia Version 0.5.0
Commit 3c9d753 (2016-09-19 18:14 UTC)
Platform Info:
  System: NT (x86_64-w64-mingw32)
  CPU: Intel(R) Core(TM) i7-4510U CPU @ 2.00GHz
  WORD_SIZE: 64
  BLAS: libopenblas (USE64BITINT DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas64_
  LIBM: libopenlibm
  LLVM: libLLVM-3.7.1 (ORCJIT, haswell)

I did everything as described in README.me

julia> using MATLAB

julia> restart_default_msession()
ERROR: restart_default_msession not defined

Using OSX 10.8.3
latest julia build
MATLAB package added via Pkg.add("MATLAB")

Thanks mike

To lessen JuliaLang's CI load. @simonster I invited you to that organization, does anyone else actively contribute here? If anyone would like an invite to that organization or otherwise objects to moving this repo, speak up here in the next couple days.

So I don't forget

eval_string is a pretty generic term to export. I propose we rename it to something more descriptive. Maybe matlab_eval or meval ? Suggestions welcome.

Whenever I type
Using Matlab
I get the following error message

However when I check my user environment variables, using versioninfo(true)

and checking my root in MATLAB,

Is there a reason why it can't read my MATLAB root?

Is there a way using MATLAB.jl to pass functions or anonymous functions to MATLAB?

I seem to be unable to suppress output with @matlab:

julia v0.5> @matlab v=[1 2 3];
>>
v =

     1     2     3

I wanted to ask if there is a way to start a Matlab session with Multithreading turned off, so to achieve the same like starting matlab with the -singleCompThread command line option?

Is it possible to pass in a Julia function and have matlab call it. Like calling matlab's fzero for example. I don't need fzero, it's just a simple example. I couldn't find a way to do it, but thought I'd ask.

Is there any possibility that an Octave version of this package can be made?

For some reason an optimization script, that runs perfectly in Windows 10, throws me a "jvalue not defined" error in Ubuntu 17.10 when calling the jvalue() function. All other functions (mxarray(), jarray(),...) work perfectly in Ubuntu, except the jvalue() function.

Does anyone know what might be the problem?

Thanks ;)

How the name of the function to be called can be passed? The following fails:

a = "plot"
@MATLAB.mat_str("$a(x, sin(x))")

The search in /Applications doesn't match the student version e.g. MATLAB_R2012a_Student.

Easily worked around by changing the app name.

need a depwarn for

jvariable(mx::MxArray, ty::Type{AbstractString}) = jstring(mx)::String		

The last tag is really old and won't work anymore because of an error looking for UInt32.

Does it make sense to call this package MATLABCall.jl along the lines of various other packges such as PyCall and JavaCall?

I presume that for Octave, we will need a separate package.

Here's a simple piece of code which fails:

julia> @matlab begin
       a=2*2*2*2;
       end
 a = *(2, 2, 2, 2);
     |
Error: Unexpected MATLAB operator.

Is the parser restricted to operations on two numbers at a time? The above code is fine with explicit parenthesis around every pair of numbers.

WARNING: has(s::Set,x) is deprecated, use contains(s,x) instead.
in write_mstatement at /Users/mike/.julia/MATLAB/src/mstatements.jl:52

Could you please fix this?

Thanks,

Mike

Hi, I was getting an error relating to not being able to find the dynamic libraries in matlab when I issued the using MATLAB command.

I think it was to do with the fact that although the correct lopen command was being issued for libmx.dylib (with the full library path being specified), when libmx was trying to open libtbb.dylib it was using just the "raw" name. Since we weren't in the Matlab.app per se it was failing to find it.

My (inelegant) work around was to edit the julia script (/Applications/julia.app/Contents/Resources/script) to include the correct DYLD_FALLBACK_LIBRARY_PATH, which works.

(Using DYLD_LIBRARY_PATH causes Julia to stop working).

Is there a way to make this library compatible with OCTAVE?

I have compiled lbfgsb on Linux for Matlab. and trying to run the example

with the translation of

using MATLAB

x0  = [-3  -1  -3  -1];   #% The starting point.
lb  = [-10 -10 -10 -10];  ##% Lower bound on the variables.
ub  = [+10 +10 +10 +10];  #% Upper bound on the variables.

mat """
	$x = lbfgsb_mex($x0,$lb,$ub,'computeObjectiveHS038','computeGradientHS038',...
           [],'genericcallback','maxiter',80,'m',4,'factr',1e-12,...
           'pgtol',1e-5);"""

but got the error

 Error using lbfgsb_mex
The Matlab array must either be a cell array or a double precision matrix
 
Error using save
Variable 'jx_lbfgsb_mex_arg_out_1' not found.
 
ERROR: MATLAB.MEngineError("failed to get variable jx_lbfgsb_mex_arg_out_1 from MATLAB session")
Stacktrace:
 [1] get_mvariable(::MATLAB.MSession, ::Symbol) at /home/myname/.julia/v0.6/MATLAB/src/engine.jl:162
 [2] mxcall(::MATLAB.MSession, ::Symbol, ::Int64, ::Array{Int64,1}, ::Vararg{Any,N} where N) at /home/myname/.julia/v0.6/MATLAB/src/engine.jl:291
 [3] mxcall(::Symbol, ::Int64, ::Array{Int64,1}, ::Array{Int64,1}, ::Vararg{Any,N} where N) at /home/myname/.julia/v0.6/MATLAB/src/engine.jl:315

Can anyone shed light on this problem? Simple passing the arrays into matlab and get values out of it are working fine, the error occurs when I try to call the lbfgsb_mex. Note that the other calls i.e. svd, sum in MATLAB work fine.

I tested both linux and windows and MATLAB.jl fails to open a MATLAB engine session.

Hi,

I am doing some tests and have an m-file test.m. I am calling this with

mat"""
result = test();
"""
@mget result
println(result)

Everything works great. My result is extracted from Matlab into Julia and I can print it to the REPL, BUT if I change the m-file, the output is unchanged.

I guess this illustrates a misunderstanding on my part? I thought mat"..." simply called my Matlab function, but if that were the case, changes to test.m would be reflected in Julia, but changes are not being reflected. Why is that? Is there some way to have changes to the m-file reflected in Julia?

Since the last tag there have been many segfault fixes (i.e. on the latest tag it's still very easy to segfault MATLAB.jl ) and library improvements. I'm now aware of only one possible way to segfault (edit: I'm having a hard time reproducing the segfaults I used be able to generate here) matlab if it's used interactively (see #84)
I think it would make sense to tag a new release soon.

Hi,

I have a certain function in matlab say: Star(filename)
when I run `Star' via Matlab it prints code progress as it runs. It takes a while to run and hence it prints some progress to the Maltab prompt after fixed time intervals.

Now when I run the following code in Julia REPL

using MATLAB;
S = MSession();
eval_string(s,"Star('test')");

It still runs just fine but it doesn't print anything until after the Matlab function is finished. Is there someway to change this behavior of MATLAB.jl and have Julia print Matlab prompt output as and when it appears ?

thanks a lot !

Hi!
I'm on Linux version 4.9.0-3-amd64 ([email protected]) (gcc version 6.3.0 20170516 (Debian 6.3.0-18) ) #1 SMP Debian 4.9.30-2+deb9u3 (2017-08-06). I can start MATLAB fine from a terminal, but for some reason MATLAB.jl failed to open a MATLAB engine session:

yakir@debian:~$ julia
               _
   _       _ _(_)_     |  A fresh approach to technical computing
  (_)     | (_) (_)    |  Documentation: https://docs.julialang.org
   _ _   _| |_  __ _   |  Type "?help" for help.
  | | | | | | |/ _` |  |
  | | |_| | | | (_| |  |  Version 0.6.0 (2017-06-19 13:05 UTC)
 _/ |\__'_|_|_|\__'_|  |  Official http://julialang.org/ release
|__/                   |  x86_64-pc-linux-gnu

julia> using MATLAB

julia> mat"1+1"
ERROR: MATLAB.MEngineError("failed to open a MATLAB engine session")
Stacktrace:
 [1] MATLAB.MSession(::Int64) at /home/yakir/.julia/v0.6/MATLAB/src/engine.jl:20
 [2] get_default_msession at /home/yakir/.julia/v0.6/MATLAB/src/engine.jl:79 [inlined]
 [3] eval_string(::String) at /home/yakir/.julia/v0.6/MATLAB/src/engine.jl:134

shell> matlab
MATLAB is selecting SOFTWARE OPENGL rendering.
<MATLAB started and I can use it>

This is a fresh install of Debian, so maybe I'm missing something..?

I'm trying to add support for complex numbers, and it seems to me that mxarray.jl might be a little simpler without the specialized constructors for matrices and logicals. In my limited benchmarking, it doesn't seem like these are any faster than using mxCreateNumericMatrix for everything. My guess is that they're just syntactic sugar for people writing mex files. @lindahua, is there a reason for these that I haven't found?

I really see no reason for having both.

Right now copy defaults to calling duplicate. Might as well do the Julian thing and just use multiple dispatch over the generic function copy and deprecate duplicate.

Since Julia now dosen't have high level supports for GPU computing, MATLAB's GPU operation is attrative. I don't know if it would be difficult to implement such things:

gA=gpuArray(A)
gB=sin(gA)

while gpuArray will call into MATLAB to create a gpuArray and returns a pointer, sin will use MATLAB builtin GPU sin function and returns a pointer.

I can't get the tests to pass anymore

INFO: Testing MATLAB
A MATLAB session is open successfully
Internal Error: A primary message table for module 77 was already registered with a differing collection of error messages.Severe:
The program '[2668] C:\Julia\Julia-0.5-latest\bin\julia.exe: Native' has exited with code 1 (0x1).
================================================================================[ ERROR: MATLAB ]=================================================================================

failed process: Process(`'C:\Julia\Julia-0.5-latest\bin\julia' -Cnative '-JC:\Julia\Julia-0.5-latest\lib\julia\sys.dll' --compile=yes --depwarn=yes --check-bounds=yes --code-coverage=none --color=yes --compilecache=yes 'C:\Users\Mus\.julia\v0.5\MATLAB\test\runtests.jl'`, ProcessExited(1)) [1]

==================================================================================================================================================================================ERROR: MATLAB had test errors
 in #test#61(::Bool, ::Function, ::Array{AbstractString,1}) at .\pkg\entry.jl:740
 in (::Base.Pkg.Entry.#kw##test)(::Array{Any,1}, ::Base.Pkg.Entry.#test, ::Array{AbstractString,1}) at .\<missing>:0
 in (::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#test,Tuple{Array{AbstractString,1}}})() at .\pkg\dir.jl:31
 in cd(::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#test,Tuple{Array{AbstractString,1}}}, ::String) at .\file.jl:48
 in #cd#1(::Array{Any,1}, ::Function, ::Function, ::Array{AbstractString,1}, ::Vararg{Array{AbstractString,1},N}) at .\pkg\dir.jl:31
 in (::Base.Pkg.Dir.#kw##cd)(::Array{Any,1}, ::Base.Pkg.Dir.#cd, ::Function, ::Array{AbstractString,1}, ::Vararg{Array{AbstractString,1},N}) at .\<missing>:0
 in #test#3(::Bool, ::Function, ::String, ::Vararg{String,N}) at .\pkg\pkg.jl:258
 in test(::String, ::Vararg{String,N}) at .\pkg\pkg.jl:258

I'm attempting to use some old plotting code, and I can't seem to get export_fig to save. Here's a minimal example showing the behavior.

using MATLAB
y = linspace(2., 3., 500)
mat"plot($(y))"
mat"export_fig(gcf,'test.png')"

I can't find test.png anywhere on the system, and neither Julia nor Matlab gives an error.

Hello:
I can use Matlab function in Julia, but only if the function does not call other functions. In contrast, when calling from Julia from R, I am able to run many functions so long as all are on the same .jl file.

any suggestions would be appreciated

Some recent updates in Julia used to show warnings with MATLAB.jl, but it does not work at all with the most recent builds (commit 876e0d3):

julia> using MATLAB
ERROR: `min` has no method matching min(::Array{Union(UTF8String,ASCIIString),1})
 in get_paths at /Users/jfsantos/.julia/v0.3/MATLAB/src/mxbase.jl:20
 in include at ./boot.jl:245
 in include_from_node1 at ./loading.jl:128
 in include at ./boot.jl:245
 in include_from_node1 at ./loading.jl:128
 in reload_path at loading.jl:152
 in _require at loading.jl:67
 in require at loading.jl:51
while loading /Users/jfsantos/.julia/v0.3/MATLAB/src/mxbase.jl, in expression starting on line 66
while loading /Users/jfsantos/.julia/v0.3/MATLAB/src/MATLAB.jl, in expression starting on line 34

min now only works between two values, and this is operating on an Array, but I don't know if it is just the case of switching min by minimum everywhere.

I just installed Julia 0.5 and MATALB.jl. Running Pkg.test("MATLAB") gives me the following error:

ERROR: LoadError: LoadError: LoadError: LoadError: UndefVarError: Uint32 not defined
 in include_from_node1(::String) at ./loading.jl:488 (repeats 2 times)
 in eval(::Module, ::Any) at ./boot.jl:234
 in require(::Symbol) at ./loading.jl:415
 in include_from_node1(::String) at ./loading.jl:488 (repeats 2 times)
 in process_options(::Base.JLOptions) at ./client.jl:262
 in _start() at ./client.jl:318
while loading /home/arora/.julia/v0.5/MATLAB/src/mxarray.jl, in expression starting on line 41
while loading /home/arora/.julia/v0.5/MATLAB/src/MATLAB.jl, in expression starting on line 37
while loading /home/arora/.julia/v0.5/MATLAB/test/engine.jl, in expression starting on line 1
while loading /home/arora/.julia/v0.5/MATLAB/test/runtests.jl, in expression starting on line 1
================================================================================[ ERROR: MATLAB ]================================================================================

failed process: Process(`/home/arora/src/julia_0.5/julia/usr/bin/julia -Cnative -J/home/arora/src/julia_0.5/julia/usr/lib/julia/sys.so --compile=yes --depwarn=yes --check-bounds=yes --code-coverage=none --color=yes --compilecache=yes /home/arora/.julia/v0.5/MATLAB/test/runtests.jl`, ProcessExited(1)) [1]

=================================================================================================================================================================================
ERROR: MATLAB had test errors
 in #test#61(::Bool, ::Function, ::Array{AbstractString,1}) at ./pkg/entry.jl:740
 in (::Base.Pkg.Entry.#kw##test)(::Array{Any,1}, ::Base.Pkg.Entry.#test, ::Array{AbstractString,1}) at ./<missing>:0
 in (::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#test,Tuple{Array{AbstractString,1}}})() at ./pkg/dir.jl:31
 in cd(::Base.Pkg.Dir.##2#3{Array{Any,1},Base.Pkg.Entry.#test,Tuple{Array{AbstractString,1}}}, ::String) at ./file.jl:59
 in #cd#1(::Array{Any,1}, ::Function, ::Function, ::Array{AbstractString,1}, ::Vararg{Array{AbstractString,1},N}) at ./pkg/dir.jl:31
 in (::Base.Pkg.Dir.#kw##cd)(::Array{Any,1}, ::Base.Pkg.Dir.#cd, ::Function, ::Array{AbstractString,1}, ::Vararg{Array{AbstractString,1},N}) at ./<missing>:0
 in #test#3(::Bool, ::Function, ::String, ::Vararg{String,N}) at ./pkg/pkg.jl:258
 in test(::String, ::Vararg{String,N}) at ./pkg/pkg.jl:258

x = mxarray(1.0)
delete(x)
jvariable(x)

calling any MATLAB.jl function on x will segfault.

Is attobot installed?

tag a patch release, with fix for MATLAB home path finding for OSX and updates to deprecated methods and syntax

I believe it was my update to Mavericks / new Xcode that broke my MATLAB.jl installation. Both my Matlab and my env are the same, but now I get:

ERROR: could not load module /Applications/MATLAB_R2011a.app/bin/maci64/libmx: dlopen(/Applications/MATLAB_R2011a.app/bin/maci64/libmx.dylib, 9): Library not loaded: libtbb.dylib
  Referenced from: /Applications/MATLAB_R2011a.app/bin/maci64/libut.dylib
  Reason: image not found
 in dlopen at c.jl:27
 in load_libmx at /Users/rene/.julia/MATLAB/src/mxbase.jl:77
 in include at boot.jl:238
 in include_from_node1 at loading.jl:114
 in include at boot.jl:238
 in include_from_node1 at loading.jl:114
 in reload_path at loading.jl:140
 in _require at loading.jl:58
 in require at loading.jl:43
at /Users/rene/.julia/MATLAB/src/mxbase.jl:85
at /Users/rene/.julia/MATLAB/src/MATLAB.jl:34

All the mentioned files exist, have the right permissions and even including /Applications/MATLAB_R2011a.app/bin/maci64 in LD_LIBRARY_PATH makes no difference. Trying to add it to DYLD_LIBRARY_PATH crashes Julia during start (before using MATLAB).

(Un-)Setting MATLAB_HOME makes no difference. (Also there is only 1 Matlab installed)

Running Julia Version 0.2.0+26 (2013-11-18 19:08 UTC) and current MATLAB.jl cloned from git URL.

I think the only difference between the last-working state and now is the installation of Mavericks / Xcode updates.

Does anybody see the same behavior? Any hints very much appreciated!

After pressing control-C at a blank prompt with a MATLAB engine session open, MATLAB is still running, but if I attempt to run a MATLAB command, I get:

ERROR: MEngineError("Invalid engine session.")
 in eval_string at /Users/simon/.julia/MATLAB/src/engine.jl:102
 in eval_string at /Users/simon/.julia/MATLAB/src/engine.jl:111

and then I need to restart Julia before anything MATLAB-related works again. I think this used to work in previous versions of Julia, although I'm not positive.

Recently upgraded to Julia 0.4. The MATLAB package fails its test.

julia> Pkg.test("MATLAB")
INFO: Testing MATLAB
A MATLAB session is open successfully
ERROR: LoadError: LoadError: MethodError: `mxstruct` has no method matching mxstruct(::Pair{Any,Any}, ::Pair{Any,Any})
Closest candidates are:
  mxstruct{T}(::T)
 in put_variable at /Users/frank/.julia/v0.4/MATLAB/src/matfile.jl:57
 in put_variables at /Users/frank/.julia/v0.4/MATLAB/src/matfile.jl:63
 in write_matfile at /Users/frank/.julia/v0.4/MATLAB/src/matfile.jl:70
 in include at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
 in include_from_node1 at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
 in include at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
 in include_from_node1 at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
 in process_options at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
 in _start at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
while loading /Users/frank/.julia/v0.4/MATLAB/test/matfile.jl, in expression starting on line 18
while loading /Users/frank/.julia/v0.4/MATLAB/test/runtests.jl, in expression starting on line 2
=============================================================================[ ERROR: MATLAB ]=============================================================================

failed process: Process(`/usr/local/Cellar/julia/HEAD/bin/julia --check-bounds=yes --code-coverage=none --color=yes /Users/frank/.julia/v0.4/MATLAB/test/runtests.jl`, ProcessExited(1)) [1]

===========================================================================================================================================================================
ERROR: MATLAB had test errors
 in error at /usr/local/Cellar/julia/HEAD/lib/julia/sys.dylib
 in test at pkg/entry.jl:746
 in anonymous at pkg/dir.jl:31
 in cd at file.jl:22
 in cd at pkg/dir.jl:31
 in test at pkg.jl:71

julia> versioninfo()
Julia Version 0.4.0-dev+6819
Commit 4d72065* (2015-08-18 17:55 UTC)
Platform Info:
  System: Darwin (x86_64-apple-darwin14.4.0)
  CPU: Intel(R) Core(TM) i7-4980HQ CPU @ 2.80GHz
  WORD_SIZE: 64
  BLAS: libopenblas (DYNAMIC_ARCH NO_AFFINITY Haswell)
  LAPACK: libopenblas
  LIBM: libopenlibm
  LLVM: libLLVM-3.3

in the doc, it says:
mf = MatFile(filename) # opens a MAT file, and returns a handle

it should be updated to
mf = MatFile("test.mat","r") % for reading ....

Only running mf = MatFile("test.mat") returns an error
julia> mf = MatFile("test.mat")
ERROR: no method MatFile(ASCIIString)

when one checks the src, MatFile is defined as a function with two inputs (also visible from methods).
julia> methods(MatFile)
#1 method for generic function "MatFile":

MatFile(filename::ASCIIString,mode::ASCIIString) at ~/.julia/MATLAB/src/matfile.jl:16

Please allow hiding the MATLAB Command Window on Windows. This can be done by using the engSetVisible function.

I would argue that the default should be to not show this window, as I expect the interaction to be done only from within Julia. A use case would be to plot something using MATLAB, which does not require the command window. I also believe that OSX and Linux also do not show this window by default.

Hello,
When calling restart_default_msession(), I get the following error on Windows:
ERROR: MEngineError("Failed to open a MATLAB engine session.")
in MSession at C:\Users\CAPADUB.julia\MATLAB\src\engine.jl:26

I'm using Matlab R2014a 64 bits. I tried setting the env variable MATLAB_HOME to no avail.

Any idea of what might be going on? I can start Matlab from a normal Windows command prompt.

ref #79

The only problematic issue here is if the user closes the matlab engine window manually (i.e. clicking the X button) instead of using the hide_msession() function. Because then the pointer to the engine is still attached to a session that does not exist. I'm not sure what is the best way to prevent this from occurring or on how to test if the pointer is still attached to a live engine window; the reason I bring this issue up is that it's possible to segfault julia if you close the window instead of hide_msession().

Hi am new to Julia and have been trying to use MATLAB.jl. It installed just fine using the Pkg.add("MATLAB") command, but when I type using MATLAB , I get the following error:

ERROR: LoadError: LoadError: MethodError: `min` has no method matching min(::Array{Union(UTF8String,ASCIIString),1})
Closest candidates are:
  min(::Any, ::Any)
  min(::Any, ::Any, ::Any)
  min(::Any, ::Any, ::Any, ::Any...)
 in get_paths at /Users/arora/.julia/v0.4/MATLAB/src/mxbase.jl:20
 in include at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
 in include_from_node1 at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
 in include at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
 in include_from_node1 at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
 in reload_path at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
 in _require at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
 in require at /Users/arora/CODES/Julia_source/julia/usr/lib/julia/sys.dylib
while loading /Users/arora/.julia/v0.4/MATLAB/src/mxbase.jl, in expression starting on line 66
while loading /Users/arora/.julia/v0.4/MATLAB/src/MATLAB.jl, in expression starting on line 34

When I try running commands like restart_default_msession() I get errors lile ERROR: UndefVarError: restart_default_msession not defined

Do you know what could be going wrong here and how can this be fixed ? I am on Julia 0.4. thanks a lot

It's confusing since it operates on matlab code, which may not be julia parsable code.