devtool extract tegra-bootfiles /tmp/boot/
NOTE: Starting bitbake server...
NOTE: Reconnecting to bitbake server...
NOTE: Retrying server connection (#1)...
WARNING: You have included the meta-rauc layer, but 'rauc' has not been enabled in your DISTRO_FEATURES. See the meta-rauc README.rst for details on enabling RAUC support for your platform.
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Loaded 4380 entries from dependency cache.

Summary: There was 1 WARNING message.
INFO: The tegra-bootfiles recipe has do_patch disabled. Running only do_configure task dependencies
Traceback (most recent call last):
  File "/data/workspace/kirkstone/poky/scripts/devtool", line 338, in <module>
    ret = main()
  File "/data/workspace/kirkstone/poky/scripts/devtool", line 325, in main
    ret = args.func(args, config, basepath, workspace)
  File "/data/workspace/kirkstone/poky/scripts/lib/devtool/standard.py", line 422, in extract
    initial_rev, _ = _extract_source(srctree, args.keep_temp, args.branch, False, config, basepath, workspace, args.fixed_setup, rd, tinfoil, no_overrides=args.no_overrides)
  File "/data/workspace/kirkstone/poky/scripts/lib/devtool/standard.py", line 601, in _extract_source
    pn = pn.replace('${COMPILERDEP}', d.getVar('COMPILERDEP'))
TypeError: replace() argument 2 must be str, not None