'undefined' as first subfolder and for tag in logs

[pedefe]

Hello,
I use setting as following :
myLog.setup({
appName: 'fpi-traces',
maxSize: 10 * 1024 * 1024
});
-> the created sub-folder is ./undefined/fpi-traces
What is missing in setup ?
Best regards.

[LordRafa]

I have been tracking down this problem, there is a small bug on the prepareDir functions @ tind-log-path.ts.