之前网上搜，使用MySQL.Data

在unity编辑器里面运行一切都正常。但是打包程exe就报了以下错误

System.TypeInitializationException

The type initializer for 'MySql.Data.MySqlClient.Replication.ReplicationManager' threw an exception.

  at MySql.Data.MySqlClient.MySqlConnection.OpenAsync (System.Boolean execAsync, System.Threading.CancellationToken cancellationToken) [0x00000] in <00000000000000000000000000000000>:0

  at System.Runtime.CompilerServices.AsyncTaskMethodBuilder.Start[TStateMachine] (TStateMachine& stateMachine) [0x00000] in <00000000000000000000000000000000>:0

  at MySql.Data.MySqlClient.MySqlConnection.OpenAsync (System.Boolean execAsync, System.Threading.CancellationToken cancellationToken) [0x00000] in <00000000000000000000000000000000>:0

  at MySql.Data.MySqlClient.MySqlConnection.Open () [0x00000] in <00000000000000000000000000000000>:0

  at SQLUtil.ExecuteReader (System.String sqlString, System.String connstr) [0x00014] in D:\workspace\svn\unity\IFCViewer\Assets\Scripts\SQLUtil.cs:52

  at SQLUtil.SearchDB (System.String ip, System.String port, System.String dBName, System.String userName, System.String password, System.String sqlMsg) [0x00056] in D:\workspace\svn\unity\IFCViewer\Assets\Scripts\SQLUtil.cs:15

  at ManageSQLData.GetMsg (System.String[] config, System.String sqlCmd) [0x00011] in D:\workspace\svn\unity\IFCViewer\Assets\Scripts\ManageSQLData.cs:61

  at ManageSQLData.getMsg (System.String sqlCmd) [0x00008] in D:\workspace\svn\unity\IFCViewer\Assets\Scripts\ManageSQLData.cs:65

  at ManageSQLData.initFromDB (System.String tableName) [0x00030] in D:\workspace\svn\unity\IFCViewer\Assets\Scripts\ManageSQLData.cs:73

  at ManageSQLData.Awake () [0x0000d] in D:\workspace\svn\unity\IFCViewer\Assets\Scripts\ManageSQLData.cs:57

--- End of stack trace from previous location where exception was thrown ---

网上搜了一遍，最后发现直接把MySQL.Data换掉，换成MySQLConnector就行了。下载NuGet插件用之前一篇日志中的插件NuGetForUnity。

打包以后可以正常链接数据库了