Runtime Error

BindKeyOrValueRequired

No key or value was provided to the data-bind attribute.

The data-bind attribute must have either a key or a value, representing the signal name to create and enable two-way binding with the element’s value.

Example:

1<input data-bind-signalname/>

Alternative syntax:

1<input data-bind="signalname" />

See the docs for the data-bind attribute.