Introduction
This knowledge base article catalogues various common errors when building VisionPack applications with Yocto along with solutions.
Unmet Dependencies
The following error is caused by a conflict in the NXP Yocto with their packages of DeepViewRT and those provided by Au-Zone.
The following packages have unmet dependencies:
deepview-rt-examples : Depends: libdeepview-rt2 (>= 2.4.69) but it is not installable
vaal : Depends: libdeepview-rt2 (>= 2.4.69) but it is not installable
vaal-apps : Depends: libdeepview-rt2 (>= 2.4.69) but it is not installable
vaal-gstreamer : Depends: libdeepview-rt2 (>= 2.4.69) but it is not installable
visionpack-python : Depends: deepview-rt-python but it is not installable
E: Unable to correct problems, you have held broken packages.
Fix
Once you've added meta-deepview to your bblayers.conf you will need delete the build/tmp and build/sstate-cache directories to overcome this conflict error to ensure only the up-to-date DeepViewRT is included in the packages.
Doing this will require a full re-build but is only needed if adding meta-deepview to an existing build the first time.
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