I’m afraid you need to update them:
Keep in mind, that you can keep the Legacy versions next to the LBT 1.x version, that way you can continue using your existing scripts if you don’t have the time to upgrade everything.
I’m not sure why your components are giving an error, make sure to use the Legacy version intended to be installed next to the 1.x versions: currently the latest is Ladybug 0.0.69 and Honeybee 0.0.66.
The LB Update and Sync components are intended to update the LBT installs to a specified version and sync the 1.x version components to a later build 1.x component, not a switch between the Legacy and LBT.