问题描述: 今天在安装sql server managerment studio的时候提示报错"The instance id is required but it is missing".操作步骤如下: 打开SQLManagementStudio_x64_ENU.exe这个安装程序 选择Add fetures to an exisiting instance of SQL Server 2008 点击next,如下图所示(下图是sql server 2008 r2的,原先使用sql…
python 3.5.2安装mysql驱动报错 python 3.5.2安装mysql驱动时出现如下异常: [root@localhost www]# pip install mysql-connector-python Collecting mysql-connector-python Could not find a version that satisfies the requirement mysql-connector-python (from versions: ) No match…
koa项目用mongoose与mongodb交互,始终报错FormModel is not defined,就是自己定义的model实例始终不能找到,但是明明定义了,这时候就要看大小写了,当创建一个model实例的时候,往往会起和model实例一样的名称,这时一定要区分大小写,或者干脆起一个别的名称,否则就是千年巨坑,一直报错找不到!!!!…
