Failed to create a directory

[do-not-stop]

File "D:\Code\python\Machine Learning\GAN\generative-compression\model.py", line 180, in init
os.path.join(directories.tensorboard, '{}train{}'.format(name, time.strftime('%d-%m_%I:%M'))), graph=tf.get_default_graph())

tensorflow.python.framework.errors_impl.InvalidArgumentError: Failed to create a directory: /tensorboard/gan-train_train_22-11_11:25; Invalid argument

[myqcxy]

what os you use？