.NET|.NET Core使用EF生成数据库出错的解决方法 .NETCore使用EF生成数据库出错的

在.NET Core 项目钟(类库)，使用Entity Framework，建立模型生成数据库时，失败

Could not load assembly 'xxx'. Ensure it is referenced by the startup project 'xxx'.

改成 64 位即可
假设 ef 代码

public class ApplicationDbContext : IdentityDbContext{public ApplicationDbContext(DbContextOptions options): base(options){}public virtual DbSet Users { get; set; }public virtual DbSet Roles { get; set; }public virtual DbSet Groups { get; set; }public virtual DbSet GroupRoles { get; set; }public virtual DbSet Logs { get; set; }public virtual DbSet LogDetails { get; set; }protected override void OnConfiguring(DbContextOptionsBuilder optionsBuilder)=> optionsBuilder.UseSqlServer(@"Data Source=.; Initial Catalog=DotNetCore; Persist Security Info=True; User ID=sa; Password=25423456; "); protected override void OnModelCreating(ModelBuilder modelBuilder){modelBuilder.Entity().HasOne(d => d.Group).WithMany(t => t.Users).HasForeignKey(d => d.GroupId).OnDelete(DeleteBehavior.Cascade); }}

改成 64位的方法，不要在 VS 上面改，要到项目目录下更改 csproj 文件