[Vue warn]: Error in render: "TypeError: Cannot read properties of undefined

Cause: rendering error:

Conclusion: in the expression A.B.C, if there is no object B in object a, then reading the value in object A.B.C will naturally report an error. If it is a two-level expression A.B, no error will be reported and undefined will be returned, The third floor will report an error

Solution:

    <!-- Use the error report directly -->
    {{sku[0].skuName}}

    <!--  Solution  -->
    <template v-if="sku[0]"> {{sku[0].skuName}}</template>