无法解析“SingleSignOutFilter”中的“setCasServerUrlPrefix”

无法解析“SingleSignOutFilter”中的“setCasServerUrlPrefix”

/**
     * 单点登出过滤器
     */
    @Bean
    public SingleSignOutFilter singleSignOutFilter() {
        SingleSignOutFilter singleSignOutFilter = new SingleSignOutFilter();
        //   报错
        singleSignOutFilter.setCasServerUrlPrefix(......);

        singleSignOutFilter.setIgnoreInitConfiguration(true);
        return singleSignOutFilter;
    }

怎么改才能使用？

是不是到错库了