Tensorboard Unble to get first event timestamp for run

I ran into the same problem (with a TensorFlow 1.4 trainer running in the cloud with Google Cloud ML Engine).

Explicitly closing tf.summary.FileWriters with close() solved it in my case.

I ran into a similar problem. There are 2 solutions to it -

• Delete all past tfevents files from the directory and keep the latest one (temporary solution).
• Create a new directory for building your logs (permanent solution).

In given below picture, first I build logs in directory 2 which resulted in same error/warnings. Later I changed the directory to 3 and build logs there and tensorboard ran successfully.