添加项目和添加团队成员时报错

[handbye]

添加团队成员时console控制台报如下错误：

TypeError: $('.js-data-example-ajax').select2 is not a function. (In '$('.js-data-example-ajax').select2({
                language: "zh-CN",
                minimumInputLength : 1,
                minimumResultsForSearch: Infinity,
                maximumSelectionLength:1,
                width : "100%",
                ajax: {
                    url: 'https:\/\/wiki.xxx.devel\/manager\/team\/member\/search?teamId=2',
                    dataType: 'json',
                    data: function (params) {
                        return {
                            q: params.term, 
                            page: params.page
                        };
                    },
                    processResults: function (data, params) {
                        return {
                            results : data.data.results
                        }
                    }
                }
            })', '$('.js-data-example-ajax').select2' is undefined)

添加项目时报如下错误：

TypeError: $('.js-data-example-ajax-add').select2 is not a function. (In '$('.js-data-example-ajax-add').select2({
                language: "zh-CN",
                minimumInputLength : 1,
                minimumResultsForSearch: Infinity,
                maximumSelectionLength:1,
                width : "100%",
                ajax: {
                    url: 'https:\/\/wiki.xxx.devel\/book\/itemsets\/search',
                    dataType: 'json',
                    data: function (params) {
                        return {
                            q: params.term, 
                            page: params.page
                        };
                    },
                    processResults: function (data, params) {
                        return {
                            results : data.data.results
                        }
                    }
                }
            })', '$('.js-data-example-ajax-add').select2' is undefined)