#52156: error: use of undeclared identifier 'CODEC_ID_MPEG4' --------------------------+-------------------------------- Reporter: gsalierno3@… | Owner: macports-tickets@… Type: defect | Status: new Priority: Normal | Milestone: Component: ports | Version: 2.3.4 Keywords: | Port: --------------------------+-------------------------------- This is the error message when trying to install opencv: $ sudo port install opencv +python27 +openni_sensorkinect ---> Computing dependencies for opencv ---> Building opencv Error: org.macports.build for port opencv returned: command execution failed Please see the log file for port opencv for details: /opt/local/var/macports/logs/_opt_local_var_macports_sources_nummist.com_opencv_ports_graphics_opencv/opencv/main.log To report a bug, follow the instructions in the guide: http://guide.macports.org/#project.tickets Error: Processing of port opencv failed I have a log file as well. -- Ticket URL: <https://trac.macports.org/ticket/52156> MacPorts <https://www.macports.org/> Ports system for macOS