dia: void dia_renderer_set_size(DiaRenderer *, gpointer, int, int): assertion `irenderer != NULL' failed

[jose.rgc@…]

My MacOS version:

$ sw_vers -productVersion
10.8.4

I have installed dia from macports:

$ sudo port install dia
--->  Computing dependencies for dia
--->  Fetching archive for dia
--->  Attempting to fetch dia-0.97.2_3.darwin_12.x86_64.tbz2 from http://jog.id.packages.macports.org/macports/packages/dia
--->  Attempting to fetch dia-0.97.2_3.darwin_12.x86_64.tbz2 from http://packages.macports.org/dia
--->  Attempting to fetch dia-0.97.2_3.darwin_12.x86_64.tbz2 from http://lil.fr.packages.macports.org/dia
--->  Fetching distfiles for dia
--->  Verifying checksums for dia
--->  Extracting dia
--->  Applying patches to dia
--->  Configuring dia
--->  Building dia
--->  Staging dia into destroot
--->  Installing dia @0.97.2_3
--->  Activating dia @0.97.2_3
--->  Cleaning dia
--->  Updating database of binaries: 100.0%
--->  Scanning binaries for linking errors: 33.6%
Warning: Error parsing file /Applications/MacPorts/GIMP.app/Contents/MacOS/GIMP: Error opening or reading file
--->  Scanning binaries for linking errors: 100.0%
--->  No broken files found.

and on launch from console (Dia icon doesn't appear in Launchpad):

$ dia &

I see in a flash the main screen then I get in the console:

(dia:60069): GLib-GObject-WARNING **: attempting to add an interface (DiaInteractiveRendererInterface) to class (DiaGdkRenderer) after class_init

** (dia:60069): CRITICAL **: void dia_renderer_set_size(DiaRenderer *, gpointer, int, int): assertion `irenderer != NULL' failed

** (dia:60069): CRITICAL **: void dia_renderer_set_size(DiaRenderer *, gpointer, int, int): assertion `irenderer != NULL' failed

[ryandesign (Ryan Carsten Schmidt)]

Duplicate of #39027.