vue element上传成功后 怎么去除提示请上传文件的提示信息？

<el-form-item label="上传文件:"  v-model="ruleForm.file" prop="file"  :rules="{ required: true, message: '请上传图片', trigger: 'change' }">
    <el-upload el-upload class="avatar-uploader el-upload--text" 
        ref="upload"
        :limit="1"
        :on-remove="handleRemove"
        :on-change="handleChange"
        :file-list="vedioList"
        :action="uploadUrl" 
        :before-upload="beforeUploadVedio" 
       :on-success="handleVideoSuccess"                       
       >
      <i class="el-icon-plus avatar-uploader-icon" v-show="vedioList.length<1"></i> 
    </el-upload>
    <P v-if="isShowUploadVideo"  class="text">请保证视频格式正确，且不超过20M</P>
</el-form-item>

解决办法：上传组件on-success后执行clearValidate清除file的校验信息

handleAvatarSuccess(res, file, fileList) {
            this.$refs.form.clearValidate('path')
            this.$notify.success(res.data.F_FileName + "文件上传成功");
        },