Common Vue.js Errors

Here are some common rendering or templating errors and what might cause them.

Property missing or misspelled

Error:

[Vue warn]: Property or method "changeSetting" is not defined on the instance but referenced during render. Make sure to declare reactive data properties in the data option.

This is probably caused by you referencing a property or method that doesn't exist, either by misspelling it or forgetting to define it.