I had the same errors as rdorocke. As suggested, I went into Widgets and re-saved the settings as they were already there before the update. This did not resolve the problem.
Next I deleted the widget from the page and started over from scratch. This made the problem worse. Now I not only have the same errors as before, but now I have similar errors on lines 311, 312, 315, 318, 322, 326, 331, 358, 359, 436 and 450.
Suggestions?
Thanks!
