Worker failed to start

`import distributed
print(distributed.__version__)`
1.21.2

`import tornado
print(tornado.version)`
4.5.3

`from dask.distributed import Client, LocalCluster
client = Client()`

tornado.application - ERROR - Multiple exceptions in yield list
Traceback (most recent call last):
File "C:\Users\brahm\Anaconda3\lib\site-packages\tornado\gen.py", line 1069, in run
yielded = self.gen.send(value)
File "C:\Users\brahm\Anaconda3\lib\site-packages\distributed\deploy\local.py", line 196, in _start_worker
raise gen.TimeoutError("Worker failed to start")
tornado.gen.TimeoutError: Worker failed to start

During handling of the above exception, another exception occurred:

Traceback (most recent call last):
File "C:\Users\brahm\Anaconda3\lib\site-packages\tornado\gen.py", line 828, in callback
result_list.append(f.result())
File "C:\Users\brahm\Anaconda3\lib\site-packages\tornado\concurrent.py", line 238, in result
raise_exc_info(self._exc_info)
File "", line 4, in raise_exc_info
File "C:\Users\brahm\Anaconda3\lib\site-packages\tornado\gen.py", line 1069, in run
yielded = self.gen.send(value)
File "C:\Users\brahm\Anaconda3\lib\site-packages\distributed\deploy\local.py", line 196, in _start_worker
raise gen.TimeoutError("Worker failed to start")
tornado.gen.TimeoutError: Worker failed to start
tornado.application - ERROR - Multiple exceptions in yield list
Traceback (most recent call last):
File "C:\Users\brahm\Anaconda3\lib\site-packages\tornado\gen.py", line 1069, in run
yielded = self.gen.send(value)
File "C:\Users\brahm\Anaconda3\lib\site-packages\distributed\deploy\local.py", line 196, in _start_worker
raise gen.TimeoutError("Worker failed to start")
tornado.gen.TimeoutError: Worker failed to start

During handling of the above exception, another exception occurred:
...