missing file librqt_image_view.so

[gabrielwaibel]

Hi

if I want to start rqt_image_view via rosrun rqt_image_view rqt_image_view or just rqt_image_view then I get the following error:

[ERROR] [1592863606.174353422]: Failed to load nodelet [rqt_image_view/ImageView_0] of type [rqt_image_view/ImageView]: Failed to load library /opt/ros/melodic/lib//librqt_image_view.so. Make sure that you are calling the PLUGINLIB_EXPORT_CLASS macro in the library code, and that names are consistent between this macro and your XML. Error string: Could not load library (Poco exception = libopencv_core.so.3.2: cannot open shared object file: No such file or directory)
RosPluginlibPluginProvider::load_explicit_type(rqt_image_view/ImageView) failed creating instance
PluginManager._load_plugin() could not load plugin "rqt_image_view/ImageView": RosPluginlibPluginProvider.load() could not load plugin "rqt_image_view/ImageView"
terminate called after throwing an instance of 'boost::exception_detail::clone_impl<boost::exception_detail::error_info_injector<boost::lock_error> >'
pure virtual method called
terminate called recursively
Aborted (core dumped)

the same happens for rosrun image_view image_view

[ INFO] [1592863868.679032143]: Initializing nodelet with 12 worker threads.
[ERROR] [1592863868.692291840]: Failed to load nodelet [/image_view] of type [image_view/image] even after refreshing the cache: Failed to load library /opt/ros/melodic/lib//libimage_view.so. Make sure that you are calling the PLUGINLIB_EXPORT_CLASS macro in the library code, and that names are consistent between this macro and your XML. Error string: Could not load library (Poco exception = libopencv_core.so.3.2: cannot open shared object file: No such file or directory)
[ERROR] [1592863868.692331964]: The error before refreshing the cache was: Failed to load library /opt/ros/melodic/lib//libimage_view.so. Make sure that you are calling the PLUGINLIB_EXPORT_CLASS macro in the library code, and that names are consistent between this macro and your XML. Error string: Could not load library (Poco exception = libopencv_core.so.3.2: cannot open shared object file: No such file or directory)

The problem is that this file /libimage_view.so does not exist. The ros installation works fine for all other things (rviz, rqt_plot, ...). The only problem is the image data.

I also tried to this:

sudo apt-get install ros-melodic-rqt-image-view
Reading package lists... Done
Building dependency tree       
Reading state information... Done
ros-melodic-rqt-image-view is already the newest version (0.4.14-1bionic.20200530.125139).
ros-melodic-rqt-image-view set to manually installed.
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

sudo apt-get install ros-melodic-image-view
Reading package lists... Done
Building dependency tree       
Reading state information... Done
ros-melodic-image-view is already the newest version (1.15.0-1bionic.20200530.133102).
ros-melodic-image-view set to manually installed.
0 to upgrade, 0 to newly install, 0 to remove and 0 not to upgrade.

Does someone have a solution to this problem?

Thanks

[dirk-thomas]

I am not sure if you have seen the ROS support guidelines but we kindly ask to raise questions like this on answers.ros.org instead.

The rational for asking all kind of questions in a single place is:

• There are many more people reading questions there so your chances on getting an answer and in a timely manner are much higher.
• In the future other users will search there for similar problems and can find your question and the potential answers.
• The issue tracker in this repo is used to track bugs, feature requests, etc. But your question is not such an action item.

Therefore I will close this ticket here for now. If you have asked your question on answers.ros.org please feel free to add a link to the question to this ticket so that future readers can find the related question.

[gabrielwaibel]

https://answers.ros.org/question/355571/missing-file-librqt_image_viewso/