of61 opencvExample doesn't compile

beginners
1

I am getting the following errors when I try to compile the opencvExample:

  
  
-------------- Build: Debug in libopenFrameworks ---------------  
  
Target is up to date.  
  
-------------- Build: Debug in opencvExample ---------------  
  
Linking console executable: bin/allAddonsExample_debug  
../../../libs/openFrameworksCompiled/lib/linux/libopenFrameworksDebug.a(ofGstUtils.o): In function `get_video_devices':  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:120: undefined reference to `udev_new'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:121: undefined reference to `udev_enumerate_new'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:122: undefined reference to `udev_enumerate_scan_devices'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:123: undefined reference to `udev_enumerate_get_list_entry'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:138: undefined reference to `udev_list_entry_get_name'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:139: undefined reference to `udev_device_new_from_syspath'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:140: undefined reference to `udev_device_get_subsystem'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:149: undefined reference to `udev_device_get_devnode'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:150: undefined reference to `udev_device_get_properties_list_entry'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:153: undefined reference to `udev_list_entry_get_name'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:156: undefined reference to `udev_list_entry_get_value'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:160: undefined reference to `udev_list_entry_get_value'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:152: undefined reference to `udev_list_entry_get_next'  
/home/blinker/Desktop/of061/libs/openFrameworks/video/ofGstUtils.cpp:142: undefined reference to `udev_list_entry_get_next'  
collect2: ld returned 1 exit status  
Process terminated with status 1 (0 minutes, 10 seconds)  
14 errors, 0 warnings

*I am running Ubuntu 9.04.
*Libdev-dev is version 141-1.2
*Other examples compile and run.

Any ideas of what could be missing?

Thanks- Mike

2

hey

there’s a library missing in the 32bits version of that example

try with this project file, i’m going to update the package.

opencvExample_linux.cbp.zip

3

That worked. Thanks!

4

Actually I’ve faced the same issue,… I couldn’t see the solution, someone could please me in it

5

Hello @Selva_Ganesh_M welcome to the forums.
Please explain better your issue. This one is from an old version of openFrameworks.