Error in element dynamic binding form validation rules

 <el-form-item label="" 
                           :prop=""tempGccSku."+ index +".skuName""
                           :rules="[
                             { required: true, message: "", trigger: "blur" },
                             { min:1, max:128, message: " 1  128 ", trigger: "blur" }
                             ]" 
                             >
                            <!--  prodSysSkuName skuName  prodSysSkuName-->
                                 <el-input  v-model="item.skuName">
                                 </el-input> 
                         </el-form-item>

how to solve the following error?

Element-ui

Mar.18,2021

the type requirement for the parameter rules in Form-Item on the document is Object

landlord, have you solved your problem? I have exactly the same problem

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