Using versions before Vue 2.7, an error message appears to be incompatible

[JW-cmd]

Hello @dm4t2 , I have a question and would like to ask you for advice.the Vue version used in my project is 2.6.11, also following the usage documentation you provided（ https://vue-currency-input-v2.netlify.app/guide.html ）Installed vue currency input

But when running the project, these errors appeared to be incompatible with versions prior to Vue 2.7

This is my code. I hope you can tell me what the problem is and how to correct it. Thank you very much! Wishing you all the best！
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<script> import { watch } from 'vue' import { useCurrencyInput } from 'vue-currency-input' export default { name: 'div-precision-input', props: { value: { type: [Number, String], default: undefined }, options: { type: Object, default() { return {} } }, placeholder: { type: String, default: undefined }, suffixHtml: { type: String, default: undefined }, disabled: Boolean }, emits: ['moneyInput'], setup(props, { emit }) { const options = { locale: 'pt', currency: 'BRL', currencyDisplay: 'hidden', precision: 2, hideCurrencySymbolOnFocus: false, hideGroupingSeparatorOnFocus: false, hideNegligibleDecimalDigitsOnFocus: false, valueRange: { min: 0, max: 99999999999.99 }, ...props.options } const { inputRef, formattedValue, setValue, numberValue } = useCurrencyInput(options) watch(() => props.value, (value) => { if (options.valueRange) { // 限制可输入数值范围 const maxValue = options.valueRange.max const minValue = options.valueRange.min if (value !== null && value > maxValue) { setValue(maxValue) emit('moneyInput', maxValue) } else if (value !== null && value < minValue) { setValue(minValue) emit('moneyInput', minValue) } else { setValue(value) emit('moneyInput', numberValue.value) } } else { setValue(value) emit('moneyInput', numberValue.value) } }) return { inputRef, formattedValue } } } </script> <style lang="scss" scoped> .money-input-box { display: flex; align-items: center; } :deep() { .el-input__inner { font-family: monospace; } } </style>

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