title: the run with the tracker on and no group name
source: manuals/miles-101/capture/gpu/out-gb10/tracker-eval-checks.txt
lines: 2-4
lang: text
note: The error type and the two operand types.
---
## wandb without --wandb-group (wandb-tb.log)
            ~~~~~~~~~~~~~~~~~^~~~~
TypeError: unsupported operand type(s) for +: 'NoneType' and 'str'
