vue

Compiler macros used without script setup

defineProps.*is not defined|defineEmits.*is not defined

Fixes

1.Use <script setup> instead of regular <script> for compiler macros
2.Import defineProps/defineEmits from 'vue' if not using script setup
3.Ensure your build tool has the Vue compiler plugin configured

vuescript-setupmacros

Related Errors

Cannot read property of undefined in setup()

Cannot read propert(y|ies) of undefined.*setup

•Initialize reactive refs before accessing nested properties
•Add optional chaining (?.) when accessing potentially undefined objects

Computed property getter returns undefined

computed property.*getter.*undefined

•Ensure computed getter always returns a value
•Check that reactive dependencies are initialized before computed runs

Direct prop mutation warning

Avoid mutating a prop directly

•Use a local data/ref copy of the prop instead of mutating directly
•Emit an event to let the parent update the prop value