Git rev: master/226a508da955439b881b2f0a544a3aee76e59919

Steps:
1. Install sdk_ext and set the environment
2. Run devtool modify recipename

Error message:
$ devtool modify aspell
Loading cache: 100% |##################################################################################################################################| Time: 0:00:00
Loaded 1319 entries from dependency cache.
ERROR: An uncaught exception occurred in runqueue
Traceback (most recent call last):
  File "/home/build/poky_sdk_ppc7400/layers/poky/bitbake/lib/bb/runqueue.py", line 1295, in RunQueue._execute_runqueue():
                     self.rqdata.init_progress_reporter.next_stage()
    >                self.start_worker()
                     self.rqdata.init_progress_reporter.next_stage()
  File "/home/build/poky_sdk_ppc7400/layers/poky/bitbake/lib/bb/runqueue.py", line 1149, in RunQueue.start_worker():
             for mc in self.rqdata.dataCaches:
    >            self.worker[mc] = self._start_worker(mc)
     
  File "/home/build/poky_sdk_ppc7400/layers/poky/bitbake/lib/bb/runqueue.py", line 1095, in RunQueue._start_worker(mc='', fakeroot=False, rqexec=None):
             else:
    >            worker = subprocess.Popen(["bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
             bb.utils.nonblockingfd(worker.stdout)
  File "/home/build/poky_sdk_ppc7400/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/python3.5/subprocess.py", line 947, in Popen.__init__(args=['bitbake-worker', 'decafbad'], bufsize=-1, executable=None, stdin=-1, stdout=-1, stderr=None, preexec_fn=None, close_fds=True, shell=False, cwd=None, env=None, universal_newlines=False, startupinfo=None, creationflags=0, restore_signals=True, start_new_session=False, pass_fds=()):
                                     errread, errwrite,
    >                                restore_signals, start_new_session)
             except:
  File "/home/build/poky_sdk_ppc7400/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/python3.5/subprocess.py", line 1551, in Popen._execute_child(args=['bitbake-worker', 'decafbad'], executable=b'bitbake-worker', preexec_fn=None, close_fds=True, pass_fds=(), cwd=None, env=None, startupinfo=None, creationflags=0, shell=False, p2cread=6, p2cwrite=10, c2pread=13, c2pwrite=21, errread=-1, errwrite=-1, restore_signals=True, start_new_session=False):
                                     err_msg += ': ' + repr(orig_executable)
    >                    raise child_exception_type(errno_num, err_msg)
                     raise child_exception_type(err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'bitbake-worker'

ERROR: Running idle function
Traceback (most recent call last):
  File "/home/build/poky_sdk_ppc7400/layers/poky/bitbake/lib/bb/runqueue.py", line 1295, in RunQueue._execute_runqueue():
                     self.rqdata.init_progress_reporter.next_stage()
    >                self.start_worker()
                     self.rqdata.init_progress_reporter.next_stage()
  File "/home/build/poky_sdk_ppc7400/layers/poky/bitbake/lib/bb/runqueue.py", line 1149, in RunQueue.start_worker():
             for mc in self.rqdata.dataCaches:
    >            self.worker[mc] = self._start_worker(mc)
     
  File "/home/build/poky_sdk_ppc7400/layers/poky/bitbake/lib/bb/runqueue.py", line 1095, in RunQueue._start_worker(mc='', fakeroot=False, rqexec=None):
             else:
    >            worker = subprocess.Popen(["bitbake-worker", magic], stdout=subprocess.PIPE, stdin=subprocess.PIPE)
             bb.utils.nonblockingfd(worker.stdout)
  File "/home/build/poky_sdk_ppc7400/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/python3.5/subprocess.py", line 947, in Popen.__init__(args=['bitbake-worker', 'decafbad'], bufsize=-1, executable=None, stdin=-1, stdout=-1, stderr=None, preexec_fn=None, close_fds=True, shell=False, cwd=None, env=None, universal_newlines=False, startupinfo=None, creationflags=0, restore_signals=True, start_new_session=False, pass_fds=()):
                                     errread, errwrite,
    >                                restore_signals, start_new_session)
             except:
  File "/home/build/poky_sdk_ppc7400/buildtools/sysroots/x86_64-pokysdk-linux/usr/lib/python3.5/subprocess.py", line 1551, in Popen._execute_child(args=['bitbake-worker', 'decafbad'], executable=b'bitbake-worker', preexec_fn=None, close_fds=True, pass_fds=(), cwd=None, env=None, startupinfo=None, creationflags=0, shell=False, p2cread=6, p2cwrite=10, c2pread=13, c2pwrite=21, errread=-1, errwrite=-1, restore_signals=True, start_new_session=False):
                                     err_msg += ': ' + repr(orig_executable)
    >                    raise child_exception_type(errno_num, err_msg)
                     raise child_exception_type(err_msg)
FileNotFoundError: [Errno 2] No such file or directory: 'bitbake-worker'