QSqlite3创建数据库表格时出现的create error QSqlError("", “”, “”)

这个问题卡了很长时间，连接数据库成功了，但是创建表格时一直失败，通过：
qCritical()<<“file:”<<FILE<<“line:”<<LINE<<“create error”<<configDB.lastError();
获取到错位信息：create error QSqlError("", “”, “”)

这说明sql语句有问题，一直创建表格失败，最终查看sql如下两种：

"create table car_config (num INTEGER primary key autoincrement, num int, addr int, status int, pos int, power int, fault_num int, pos_pluse_num long,rail_pluse_num long, temp int, sn int, config_ver int, date_production int,hardware_ver int, software_ver int, manufacturer int)"

这个是主键num和后面的num重复了。

"create table car_config (index INTEGER primary key autoincrement, num int, addr int, status int, pos int, power int, fault_num int, pos_pluse_num long,rail_pluse_num long, temp int, sn int, config_ver int, date_production int,hardware_ver int, software_ver int, manufacturer int)"

这个是index不能作为主键，这个卡了半天，最后改成下面这个就好了。

"create table car_config (car_id INTEGER primary key autoincrement, num int, addr int, status int, pos int, power int, fault_num int, pos_pluse_num long,rail_pluse_num long, temp int, sn int, config_ver int, date_production int,hardware_ver int, software_ver int, manufacturer int)"