c# - 将 Task 转换为 decimal

Question

当我尝试转换 Task<decimal> 时出现此错误至 decimal :

Could not load file or assembly 'EntityFramework, Version=5.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)

这是我的方法:

public async Task<decimal> GetTotalProposalAmount()
{
    using (DataContext db = new DataContext())
    {
        var total = db.Database.SqlQuery<decimal>("Get_ProposalTotal", null);
        return await total.FirstAsync();
    }
}

我在 Controller 中调用它:

public async Task<ActionResult> Index(int? page, string search)
{

   model.Proposaltotal = Convert.ToDecimal(GetTotalProposalAmount());
    return View(model);
}

Answer 1

您只需等待任务:

model.Proposaltotal = await GetTotalProposalAmount();

这与您的构建错误无关，just add the reference it asks for .