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Strange warnings when running image_view

asked 2013-01-24 02:20:22 -0600

Kevin gravatar image

When I run image_view, it works, but I get a lot of strange warnings on the command line:

[kevin@tardis ros_sandbox]$ rosrun image_view image_view image:=/opencv_cam/camera

(process:591): GLib-GObject-CRITICAL **: gtype.c:2720: You forgot to call g_type_init()

(process:591): GLib-CRITICAL **: void g_once_init_leave(volatile void *, gsize): assertion `result != 0' failed

(process:591): GLib-GObject-CRITICAL **: gtype.c:2720: You forgot to call g_type_init()

(process:591): GLib-GObject-CRITICAL **: gtype.c:2720: You forgot to call g_type_init()

(process:591): GLib-GObject-CRITICAL **: gtype.c:2720: You forgot to call g_type_init()

(process:591): GLib-GObject-CRITICAL **: void g_type_add_interface_static(GType, GType, const GInterfaceInfo *): assertion `G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

(process:591): GLib-GObject-CRITICAL **: gtype.c:2720: You forgot to call g_type_init()

(process:591): GLib-GObject-CRITICAL **: void g_type_interface_add_prerequisite(GType, GType): assertion `G_TYPE_IS_INTERFACE (interface_type)' failed

(process:591): GLib-CRITICAL **: void g_once_init_leave(volatile void *, gsize): assertion `result != 0' failed

(process:591): GLib-GObject-CRITICAL **: void g_type_add_interface_static(GType, GType, const GInterfaceInfo *): assertion `G_TYPE_IS_INSTANTIATABLE (instance_type)' failed

(process:591): GLib-GObject-WARNING **: invalid uninstantiatable type `(null)' in cast to `<invalid>'

(process:591): GLib-GObject-WARNING **: instance of invalid non-instantiatable type `(null)'

(process:591): GLib-GObject-CRITICAL **: gulong g_signal_connect_data(gpointer, const gchar *, GCallback, gpointer, GClosureNotify, GConnectFlags): assertion `G_TYPE_CHECK_INSTANCE (instance)' failed
^C[kevin@tardis ros_sandbox]$

Not sure if it is related to this question or not. Any ideas how to fix this?

ROS Groovy

OSX 10.8, Homebrew

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You might want to try rqt_image_view which is based on Qt instead and should provide the same functionality.

Dirk Thomas gravatar image Dirk Thomas  ( 2013-01-24 20:53:56 -0600 )edit

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answered 2013-01-24 07:33:50 -0600

WilliamWoodall gravatar image

I'm not sure where in the image_view code this comes from, but if memory serves, similar errors come up on Linux, and it might be that you can simply ignore those warnings.

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Asked: 2013-01-24 02:20:22 -0600

Seen: 589 times

Last updated: Jan 24 '13