Failed to create session

[ccslience]

when I run the examples(Fashion Minist) on my server, I got below , is there any solutions? Thanks
Traceback (most recent call last):
File "main.py", line 30, in
sess = tf.Session(config = config)
File "/home/ubuntu/.conda/envs/py36_tf110/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 1494, in init
super(Session, self).init(target, graph, config=config)
File "/home/ubuntu/.conda/envs/py36_tf110/lib/python3.6/site-packages/tensorflow/python/client/session.py", line 626, in init
self._session = tf_session.TF_NewSession(self._graph._c_graph, opts)
tensorflow.python.framework.errors_impl.InternalError: Failed to create session.