Latex写UESTC论文报错Extra }, or forgotten lendgroup. \makecover

\makecover报错的原因是什么？
我看了一下cls文件，也没找到哪里缺失}了，头秃

将\hspace{2.5in}改成\mbox{\hspace{2.5in}}, 报错改为Undefined control sequence. \makecover

参考https://blog.csdn.net/qq_37975919/article/details/122443125?utm_medium=distribute.pc_aggpage_search_result.none-task-blog-2~aggregatepage~first_rank_ecpm_v1~rank_v31_ecpm-8-122443125.pc_agg_new_rank&utm_term=%5Cmakecover+latex+%E6%8A%A5%E9%94%99&spm=1000.2123.3001.4430
添加以下字段
\maintitle
\degree
专硕需要把master改成promatesr，并添加\theEngineeringFieldName字段
之后报错改为

\makecover宏没有定义