Dll missing error when trying to open arv-camera-test-0.8

Using Aravis
#1

Hello,

I downloaded Aravis from the below link:
https://packages.msys2.org/package/mingw-w64-x86_64-aravis?repo=mingw64
and when trying to open arv-camera-test-0.8.exe or arv-fake-gv-camera-0.8.exe I get a dll missing error as you can see in the attached screenshots
after opening arv-camera-test-0.8
.

It seems like these 3 dlls are missing:

  • libglib-2.0-0.dll
  • libgobject-2.0-0.dll
  • libgio-2.0-0.dll

I am using Windows 10 64-bit.

Do you have any ideas about this behavior?

Thanks in advance.

#2

Hi,

The installation of Aravis should have pulled the dependencies. What gives pacman -Qi mingw-w64-x86_64-aravis ?

I guess you should try to update your msys2 installation using pacman -Syu.

Emmanuel.

#3

Thanks you for bringing this up, it is a packaging issue. I opened a pull-request which should fix that (it will take a few days/weeks before that lands). For now just installing mingw-w64-glib2 by hand should solve the issue. Please confirm that it worked. Cheers!

#4

I closed the PR again; the packaging seems to be correct as mingw-w64-x86_64-gobject-introspection-runtime (a dependency of mingw-w64-x86_64-aravis) should pull in also mingw-w64-x86_64-glib2 which contains the three DLLs you mention. As workaround, (re)install mingw-w64-x86_64-glib2.

#5

@romi just a quick ping if you managed to fix the issue…?

#6

To get the simple (32-bit) programs from 0.8.21 running , this is the list of files I needed to find in the end:

libiconv-2.dll
libusb-1.0.dll
libpcre-1.dll
liblzma-5.dll
libffi-7.dll
libgio-2.0-0.dll
libgmodule-2.0-0.dll
libwinpthread-1.dll
libxml2-2.dll
libgcc_s_dw2-1.dll
libglib-2.0-0.dll
libaravis-0.8-0.dll
libintl-8.dll
zlib1.dll
libgobject-2.0-0.dll

#7

Check out Dependency Walker which will let you show which DLLs link against which other DLLs. In any case, mingw packages should pull, directly or indirectly, all DLLs you need.

#8

Sooner or later you will need to deploy, and then you want a minimal subset, which I listed above.

To create this set I used a similar tool like dependency walker. Note that DLLs might themselves have other DLLs as dependency too.

#9

Understood. Check out this post on automating bundling DLLs recursively with cmake & cpack, I use that for production code. (Dependency Walker works recursively as well, BTW).

#10

I use innosetup to deploy the generated application EXE and relevant DLLs as a bundle with Delphi or Lazarus applications.

Though usually that is only for the more formal deliveries, and updates are simply single EXEs.