Could not save workflow: null

KNIME Analytics Platform
1

Hello!

What can cause this error:

Could not save workflow: null

It is not writen in the console but in a small window that appears when I try to save.

I have already used this workflow but it is the first I can not save it.

I am running knime 2.9.4 on CentOS 6.3

Thanks

Nicolas

2

Do you see something related in the logs?

3

I do not see any log, neither in my home, nor in the workspace.