dbus: Image error: /Library/LaunchAgents/org.freedesktop.dbus-session.plist already exists and does not belong to a registered port

[com683@…]

m http://packages.macports.org/py34-numpy
--->  Attempting to fetch py34-numpy-1.10.4_0+gfortran.darwin_15.x86_64.tbz2 from http://lil.fr.packages.macports.org/py34-numpy
--->  Fetching distfiles for py34-numpy
--->  Attempting to fetch numpy-1.10.4.tar.gz from https://github.com/numpy/numpy/tarball/v1.10.4
--->  Verifying checksums for py34-numpy                                        
--->  Extracting py34-numpy
--->  Applying patches to py34-numpy
--->  Configuring py34-numpy
--->  Building py34-numpy
--->  Staging py34-numpy into destroot
--->  Installing py34-numpy @1.10.4_0+gfortran
--->  Activating py34-numpy @1.10.4_0+gfortran
--->  Cleaning py34-numpy
--->  Fetching archive for py34-opengl-accelerate
--->  Attempting to fetch py34-opengl-accelerate-3.1.0_0.darwin_15.x86_64.tbz2 from http://mse.uk.packages.macports.org/sites/packages.macports.org/py34-opengl-accelerate
--->  Attempting to fetch py34-opengl-accelerate-3.1.0_0.darwin_15.x86_64.tbz2 from http://packages.macports.org/py34-opengl-accelerate
--->  Attempting to fetch py34-opengl-accelerate-3.1.0_0.darwin_15.x86_64.tbz2 from http://lil.fr.packages.macports.org/py34-opengl-accelerate
--->  Fetching distfiles for py34-opengl-accelerate
--->  Attempting to fetch PyOpenGL-accelerate-3.1.0.tar.gz from https://pypi.python.org/packages/source/P/PyOpenGL-accelerate/
--->  Verifying checksums for py34-opengl-accelerate
--->  Extracting py34-opengl-accelerate
--->  Configuring py34-opengl-accelerate
--->  Building py34-opengl-accelerate
--->  Staging py34-opengl-accelerate into destroot
--->  Installing py34-opengl-accelerate @3.1.0_0
--->  Activating py34-opengl-accelerate @3.1.0_0
--->  Cleaning py34-opengl-accelerate
--->  Fetching archive for py34-opengl
--->  Attempting to fetch py34-opengl-3.1.0_0.darwin_15.noarch.tbz2 from http://mse.uk.packages.macports.org/sites/packages.macports.org/py34-opengl
--->  Attempting to fetch py34-opengl-3.1.0_0.darwin_15.noarch.tbz2 from http://packages.macports.org/py34-opengl
--->  Attempting to fetch py34-opengl-3.1.0_0.darwin_15.noarch.tbz2 from http://lil.fr.packages.macports.org/py34-opengl
--->  Fetching distfiles for py34-opengl
--->  Attempting to fetch PyOpenGL-3.1.0.tar.gz from https://pypi.python.org/packages/source/P/PyOpenGL/
--->  Verifying checksums for py34-opengl
--->  Extracting py34-opengl
--->  Applying patches to py34-opengl
--->  Configuring py34-opengl
--->  Building py34-opengl
--->  Staging py34-opengl into destroot
--->  Installing py34-opengl @3.1.0_0
--->  Activating py34-opengl @3.1.0_0
--->  Cleaning py34-opengl
--->  Activating dbus @1.8.16_0
Error: org.macports.activate for port dbus returned: Image error: /Library/LaunchAgents/org.freedesktop.dbus-session.plist already exists and does not belong to a registered port.  Unable to activate port dbus. Use 'port -f activate dbus' to force the activation.
Error: Failed to install dbus
Please see the log file for port dbus for details:
    /opt/local/var/macports/logs/_opt_local_var_macports_sources_rsync.macports.org_release_tarballs_ports_devel_dbus/dbus/main.log
Error: The following dependencies were not installed: py34-pyqt4 dbus-python34 dbus dbus-glib glib2 pcre py34-sip qt4-mac libmng py34-scipy swig-python bison bison-runtime m4 gsed swig
To report a bug, follow the instructions in the guide:
    http://guide.macports.org/#project.tickets
Error: Processing of port py34-pyqtgraph failed

[com683@…]

this is the script just look at the end

[ryandesign (Ryan Carsten Schmidt)]

Why does /Library/LaunchAgents/org.freedesktop.dbus-session.plist already exist and does not belong to a registered port?

[MarcusCalhoun-Lopez (Marcus Calhoun-Lopez)]

In the output provided, there was an attempt to use both ​brew and ​pip.
MacPorts does not support software installed in ​/usr/local.
It seems likely that somewhere along the line, dbus was installed without MacPorts, hence the problem.