所以我看到了 .NET Core 的 Pomelo 包最奇怪的行为。
var optionsBuilder = new DbContextOptionsBuilder<AssessmentContext>();
var cn = String.Format(config["ConnectionStrings:AwsConnection"], config["Aws:MySQLPassword"]);
optionsBuilder.UseMySql(cn);
db = new AssessmentContext(optionsBuilder.Options);
我在单元测试中有上面的代码来设置连接到 AWS 中的 MySQL 数据库。这已经工作了大约一个星期。但是,从今天开始,到optionsBuilder.UseMySql(cn);
现在为止,我遇到了一个例外。
Assessment.Tests.Data.Contexts.AssessmentContextTests.ConnectToMySQL:
Outcome: Failed
Error Message:
Class Initialization method Assessment.Tests.Data.Contexts.AssessmentContextTests.Initialize threw exception. System.TypeLoadException: System.TypeLoadException: Could not load type 'MySql.Data.MySqlClient.MySqlConnectionStringBuilder' from assembly 'MySqlConnector, Version=1.0.0.0, Culture=neutral, PublicKeyToken=d33d3e53aa5f8c92'..
Stack Trace:
at Microsoft.EntityFrameworkCore.MySqlDbContextOptionsExtensions.UseMySql(DbContextOptionsBuilder optionsBuilder, String connectionString, Action`1 mySqlOptionsAction)
at Microsoft.EntityFrameworkCore.MySqlDbContextOptionsExtensions.UseMySql[TContext](DbContextOptionsBuilder`1 optionsBuilder, String connectionString, Action`1 mySqlOptionsAction)
at Assessment.Tests.Data.Contexts.AssessmentContextTests.Initialize(TestContext context) in
这一直运作良好。我没有更新任何库,但它失败了,我无法连接。有什么想法吗?我正在使用 .NET Core 3.1 和 pomelo 版本 3.0.1。