if the package has been renamed to comply with debian naming rules (debian.bbclass has been inherited and package contains .so-files) then oe.packagedata.recipename function doesn't work properly and returns None for such packages.

Disabling debian.bbclass solves the problem and can be used as a workaround.

Simple reproducer would be:

# repro.bblass


python my_report () {

    from oe.rootfs import image_list_installed_packages
    from oe.packagedata import recipename, pkgmap

    pkgs = image_list_installed_packages(d)
    for pkg in pkgs:
        recipe = recipename(pkg, d)
        if recipe is None: bb.error("Whoops recipe of {} is None".format(pkg))
}

ROOTFS_POSTPROCESS_COMMAND += " my_report; "