Wierd error trying to instantiate nlogger with servicestack

1

Any ideas on what the heck this is about?

Cannot access the constructor of type: ServiceStack.Logging.NLogger.NLogLogger. Is the required permission granted?

happens as the servicehost is instantiated.

[NLogConfigurationException: Cannot access the constructor of type: ServiceStack.Logging.NLogger.NLogLogger. Is the required permission granted?]
NLog.Internal.FactoryHelper.CreateInstance(Type t) +239
NLog.LogFactory.GetLogger(LoggerCacheKey cacheKey) +1000
ServiceStack.Logging.NLogger.NLogLogger…ctor(Type type) +140
ServiceStack.Logging.NLogger.NLogFactory.GetLogger(Type type) +38
ServiceStack.ServiceStackHost…ctor(String serviceName, Assembly[] assembliesWithServices) +93

Using NLog 4.5 RC, ServiceStack 5.0.2 assemblies

2

Sounds like a breaking change with NLog’s RC packages, ServiceStack only updates to use the latest stable packages of external dependencies which you should use instead.

3

That’s what I figured, problem is 4.5 is needed for .net standard 2 support.

4

Then you should be able to configure logging via the .NET Core logging abstraction. NLog has some docs on configuring NLog with .NET Core 2.0.

5

Unfortunately, for now we have to live side by side so our logging needs to work both ways… 4.7.1 and .net core.

6

We’ll update to the latest stable packages of every release. In the meantime you can just copy the 2 NLog adapter classes into your project which you can use with any version of NLog.

7

Yeah it looks like you need to inherit from Logger in ServiceStack NLogLogger and provide a default constructor. At least that’s what it looks like anyway.