element弹窗Dom获取不到

Question

<el-dialog title="部门选择" :visible.sync="orgDialogVisible" custom-class="popTier orgDialog" size="sm">        <div solt="orgContent ztree" id="orgContent">            获取机构列表        </div>        <div slot="footer" class="dialog-footer">            <el-button @click="orgDialogVisible = false">取 消</el-button>            <el-button type="primary" @click="orgDialogVisible = false">确 定</el-button>        </div>    </el-dialog>我需要在弹窗里画树，但是dom获取不到，怎么办