PrecompiledExtensionLoader null引用异常

Question

浏览主页时出现此错误。这是在我全新安装后开始发生的。

Line 174:            // because a pre-compiled module usually references a pre-compiled assembly binary
Line 175:            // which will have a different identity (i.e. name) from the dynamic module.
Line 176:            bool result = references.All(r => r.Loader.GetType() != typeof(DynamicExtensionLoader));
Line 177:            if (!result) {
Line 178:                Logger.Information("Extension \"{0}\" will not be loaded as pre-compiled extension because one or more referenced extension is dynamically compiled", extension.Id);

Source File: \orchard\src\Orchard\Environment\Extensions\Loaders\PrecompiledExtensionLoader.cs    Line: 176 

错误日志为空，但我在调试日志中看到了这一点。

Orchard.Environment.Extensions.ExtensionLoaderCoordinator - No loader found for extension "[Custom Module 1]"!
Orchard.Environment.Extensions.ExtensionLoaderCoordinator - No loader found for extension "[Custom Module 2]"!

感谢。