asp.net - 尝试集成PayPal checkout express，使用PayPal提供的classes\dll，得到: Could not load file or assembly 'log4net

Question

使用 .Net 框架 4. 我假设 PayPal 库依赖于这个 log4net 版本需要旧版本还是我根本没有文件？我需要在某处获取此文件还是还有其他解决方法吗？

更新，在安装最新版本的 log4net 后我现在得到同样的错误除了找到文件这次说**:

 The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)]
   com.paypal.sdk.profiles.BaseAPIProfile..cctor() +0




Line 23:        {
Line 24:            NVPCallerServices caller = new NVPCallerServices();
Line 25:            **IAPIProfile profile = ProfileFactory.createSignatureAPIProfile();**

代码。

Stack Trace: 


[FileNotFoundException: Could not load file or assembly 'log4net, Version=1.2.0.30714, Culture=neutral, PublicKeyToken=b32731d11ce58905' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference.]
   com.paypal.sdk.profiles.BaseAPIProfile..cctor() +0

---

[TypeInitializationException: The type initializer for 'com.paypal.sdk.profiles.BaseAPIProfile' threw an exception.]
   com.paypal.sdk.profiles.BaseAPIProfile..ctor() +0
   com.paypal.sdk.profiles.SignatureAPIProfile..ctor() +29
   com.paypal.sdk.profiles.ProfileFactory.createSignatureAPIProfile() +39
   GenerateCodeNVP.ECSetExpressCheckout.ECSetExpressCheckoutCode(String returnURL, String cancelURL, String amount, String paymentType, String currencyCode) in C:\Users\Admin\Documents\Visual Studio 2010\Projects\MyProject\DotNetNVPGenerate\ECSetExpressCheckout.cs:25
   NeoCart.WebUI.Controllers.CheckoutController.Payment() in C:\Users\Admin\Documents\Visual Studio 2010\Projects\MyProject\NeoCart.WebUI\Controllers\CheckoutController.cs:179
   lambda_method(Closure , ControllerBase , Object[] ) +96

Answer 1

Log4net 是一个 separate open-source project .

您可以从 Visual Studio 中获取它 using NuGet ，或者您可以从 Apache 的网站下载它。