进入代码生成---导入表页面报错

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数据库为mysql5.5；
字符集信息如下
![输入图片说明](https://images.gitee.com/uploads/images/2020/0318/144253_7432cc38_1884426.png "屏幕截图.png")
请问一下这是什么原因；
（使用mysql5.7，报同样错）
报错信息如下

```
Error querying database. Cause: java.sql.SQLException: Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '=' ### The error may exist in file [E:\project\安全保障\code\BackCode\RuoYi-Vue\ruoyi\target\classes\mybatis\tool\GenTableMapper.xml] ### The error may involve com.ruoyi.project.tool.gen.mapper.GenTableMapper.selectDbTableList-Inline ### The error occurred while setting parameters ### SQL: SELECT count(0) FROM information_schema.tables WHERE table_schema = (SELECT database()) AND table_name NOT LIKE 'qrtz_%' AND table_name NOT LIKE 'gen_%' AND table_name NOT IN (SELECT table_name FROM gen_table) ### Cause: java.sql.SQLException: Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '=' ; uncategorized SQLException; SQL state [HY000]; error code [1267]; Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '='; nested exception is java.sql.SQLException: Illegal mix of collations (utf8_general_ci,IMPLICIT) and (utf8_unicode_ci,IMPLICIT) for operation '='
```

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