ZengOwen

把Startup.cs 的 ConfigureServices 加上AddPack《MySqlDefaultDbContextMigrationPack》() 可以了 但是执行建立数据库时，依然报错 PM> Update-Database Build started... Build succeeded. System.ArgumentException: An item with the same key has already been added. Key: OSharp.Entity.DefaultDbContext at System.Collections.Generic.Dictionary`2.TryInsert(TKey key, TValue value,...

能说的具体点么. 我看到的源码是格式化为一行的,没这么清晰 试图引入jsdom并导入所需的window及document, 及设置window.fetch = fetch, 运行后报了许多下面两类错误: [imgFeed]: TypeError: Cannot read properties of undefined (reading 'frameBufferSupportFloat') webgl createProgram: imgFeed -- Error: TypeError: Cannot read properties of null (reading 'FRAGMENT_SHADER')