Need 'icudt61.dll' when using vlfeat in MATLAB 2019a

Vlfeat installs correctly in Matlab r2019a, but when running vl_version, error appears stating that icudt61.dll not found. But the file is in the (matlab root)\bin\win64 directory and other dlls in the directory work fine.

So with dependency walker, I find that matlab 2019a(x64) comes with a 32-bit icudt61.dll which causes the error:

I wonder if anyone experienced the issue before? If not, would you like to share the orginal icudt61.dll with me?

Answer 1

[Zhen Leng]

Cmake will work with the mingw-w64 toolchain provided by matlab. Just cmake make & make install with the mingw32-make

[Zhibin Deng]

What does this mean? How to use cmake to resolve this problem?

Answer 2

[Walter Roberson]

You can get it from https://www.dll4free.com/icudt61.dll.html

However, it is not going to work for you. icudt61.dll was 32 bit only, and your MATLAB is 64 bit only. The 64 bit versions are icudt.dll https://github.com/WebKitForWindows/WinCairoRequirements/issues/19

vlfeat was not designed for use with MS Windows. It can take effort to get it to work.

[Zhen Leng]

Tried recompile mex parts with the vl_compile.m with no luck.

It is interesting to note that the the icudt61.dll only causes trouble when running vlfeat but no other apps is affected although it is shown to be a dependency of libmx.dll not found by the dependency walker...

[Walter Roberson]

I tried compiling vl_feat for Windows a couple of years ago. I had to make some source code changes. I gave up after a while.

[Zhen Leng]

I already made some source code changes...

Vlfeat provide windows binary and compile instructions. But compilation requires VC which I do not want install. Maybe I will look into the compilation script later.

[Jasmin Heyser]

a simmilar problem occured while tried to start an cosimulation between Simulink/ Matlban and Motion solve. Do you know if the Problem is the same and if you found any solutions?

I also attached the debug report where the problem was shown.

Thank you in advance !

[Jasmin Heyser]

Oh I just noticed the bad quaity of the picture . here another try

[Walter Roberson]

I am not at all certain, but I think you can build the 64 bit version of the DLL from the source at https://sourceforge.net/projects/icu/files/ICU4C/61.1/