Update README.md (#186)

Added rosbag versioning troubleshooting answer.

Author: taylorkf

README.md

@@ -145,4 +145,5 @@ To close, run `python3 src/ada_feeding/start.py --sim dummy -c`
 - **The watchdog is not recognizing my initial e-stop click**: Verify the e-stop is plugged in, and that any other processes accessing the microphone (e.g., Sound Settings) are closed. Run `alsamixer` to see if your user account has access to it. If you do not see sound levels in the terminal, try `sudo alsamixer`. If that works, give your user account permission to access sound: `sudo setfacl -m u:$USER:rw /dev/snd/*`
 - **The watchdog is failing due to the F/T sensor**: First, check whether the force-torque sensor is publishing: `ros2 topic echo /wireless_ft/ftSensor3`. If not, the issue is in the `ft` screen (one potential issue is that the alias `ft-sensor` does not point to the right IP address for the force-torque sensor, in which case you should pass the IP address in using the `host` parameter). If so, check the timestamp of the published F/T messages compared to the current time. If it is off, the problem is that NTP got disabled on the force-torque sensor. You have to use `minicom` to re-enable NTP (see [here](https://github.com/personalrobotics/pr_docs/wiki/ADA) for PRL-specific instructions). 
 - **I get the error `cannot use destroyable because destruction was requested`**: Upgrade to the latest version of`rclpy`.
+- **I get the error `rosbags is not installed, or a wrong version is installed (needs 0.9.19). Type Checking against rosbag types will not work. Error: No module named 'rosbags'`**: Upgrade or downgrade to `rosbags` version 0.9.19.
 - **I get the error `bad option: --env-file=.env` when launching the WebRTC Signalling Server**: You are using an old version of Node; upgrade it to 21.