user@8e0991ec8bf9:/local/build$ bitbake core-image-full-cmdline
ERROR: Unable to start bitbake server (None)
ERROR: Server log for this session (/local/build/bitbake-cookerdaemon.log):
--- Starting bitbake server pid 7021 at 2019-11-28 16:54:33.184879 ---
ERROR: Execution of event handler 'base_eventhandler' failed
Traceback (most recent call last):
  File "/local/poky/meta/classes/base.bbclass", line 244, in base_eventhandler(e=<bb.event.ConfigParsed object at 0x7f71dde3a978>):
             # Works with the line in layer.conf which changes PATH to point here
    >        setup_hosttools_dir(d.getVar('HOSTTOOLS_DIR'), 'HOSTTOOLS', d)
             setup_hosttools_dir(d.getVar('HOSTTOOLS_DIR'), 'HOSTTOOLS_NONFATAL', d, fatal=False)
  File "/local/poky/meta/classes/base.bbclass", line 145, in setup_hosttools_dir(dest='/local/build/tmp/hosttools', toolsvar='HOSTTOOLS', d=<bb.data_smart.DataSmart object at 0x7f71de451ac8>, fatal=True):
             srctool = "python2"
    >        os.symlink(srctool, desttool)

FileExistsError: [Errno 17] File exists: 'python2' -> '/local/build/tmp/hosttools/python'

ERROR: Error parsing configuration files
Traceback (most recent call last):
  File "/local/poky/bitbake/lib/bb/event.py", line 215, in fire(event=<bb.event.ConfigParsed object at 0x7f71dde3a978>, d=<bb.data_smart.DataSmart object at 0x7f71de451ac8>):

    >    fire_class_handlers(event, d)
         if worker_fire:
  File "/local/poky/bitbake/lib/bb/event.py", line 122, in fire_class_handlers(event=<bb.event.ConfigParsed object at 0x7f71dde3a978>, d=<bb.data_smart.DataSmart object at 0x7f71de451ac8>):
                         continue
    >            execute_handler(name, handler, event, d)

  File "/local/poky/bitbake/lib/bb/event.py", line 94, in execute_handler(name='base_eventhandler', handler=<function base_eventhandler at 0x7f71dde8d048>, event=<bb.event.ConfigParsed object at 0x7f71dde3a978>, d=<bb.data_smart.DataSmart object at 0x7f71de451ac8>):
         try:
    >        ret = handler(event)
         except (bb.parse.SkipRecipe, bb.BBHandledException):
  File "/local/poky/meta/classes/base.bbclass", line 244, in base_eventhandler(e=<bb.event.ConfigParsed object at 0x7f71dde3a978>):
             # Works with the line in layer.conf which changes PATH to point here
    >        setup_hosttools_dir(d.getVar('HOSTTOOLS_DIR'), 'HOSTTOOLS', d)
             setup_hosttools_dir(d.getVar('HOSTTOOLS_DIR'), 'HOSTTOOLS_NONFATAL', d, fatal=False)
  File "/local/poky/meta/classes/base.bbclass", line 145, in setup_hosttools_dir(dest='/local/build/tmp/hosttools', toolsvar='HOSTTOOLS', d=<bb.data_smart.DataSmart object at 0x7f71de451ac8>, fatal=True):
             srctool = "python2"
    >        os.symlink(srctool, desttool)

FileExistsError: [Errno 17] File exists: 'python2' -> '/local/build/tmp/hosttools/python'