SimpleInjector.ActivationException: 'No registration for type IRuntimePlatform could be found.' about couchbase-lite-net HOT 10 CLOSED

I managed to work around the error by:

1. Creating a class that implements IRuntimePlatform

using Couchbase.Lite.DI;

internal class RuntimePlatform : IRuntimePlatform
    {
        public string OSDescription
        {
            get
            {
                return "Desktop";

            }
        }

        public string HardwareName
        {
            get
            {
                return "NET 6";
            }
        }
    }

Then before calling CBLite in my code, I register the class:

using Couchbase.Lite.DI;

           if (!RegisteredRuntimePlatform)
           {
               Service.Register<IRuntimePlatform>(new RuntimePlatform());
               RegisteredRuntimePlatform = true;
           }

It's very inelegant but it avoids the error

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Also having the same issue, workaround provided fixes issue.

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It's interesting that this is the particular error that happens, and sorry that I didn't notice this ticket. However .NET 6 is still, as of yet, unsupported. 3.1 will be the first release to support it.

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That being said I tried this with 3.0.8

using Couchbase.Lite;

var dbconfig = new DatabaseConfiguration()
{
    Directory = Path.Combine(Environment.GetFolderPath(Environment.SpecialFolder.ApplicationData), "MyApp")
};
using var db = new Database("foo", dbconfig);
Console.WriteLine(db.Path);

I didn't see any errors like this. Can you confirm the reproduction steps?

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@borrrden

I should of clarified that I'm actually on .net Framework 4.7.2. The problem only happens in version 3.0.0+, previous versions do not have this problem.

We are calling the constructor like this

using var db = new Database("pathHere");

I will see if I can create a reproduction repo.

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I tried just now with .net 4.7.2 and 3.0.8, and I do not see the issue. Unrelated, but "pathHere" seems suspicious to me. That should be the database name, not a path.

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Just for sanity sake, how are you observing this error? I believe internally this exception is thrown by SimpleInjector but then caught and handled so it doesn't actually affect the program flow. If you are just hitting it with a debugger set to halt on all exceptions it may trick you into thinking there is actually an issue where there is not. IRuntimePlatform is not a required interface. Couchbase Lite will try to instantiate it, but if it does not exist then it will fall back to some .NET runtime defaults.

See the following:

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@borrrden

I think you might be onto something. I have another problem that is crashing our app when we move to 3x that is unrelated to this. I had my debugger set to recording non-user code exceptions and I think what I was seeing was the second problem silently killing the app after I continued through this exception, so I associated this exception as my app killer.

Since I turned off non-user code checks, I only get the unrelated error. Let me keep poking at this and I will get back to you.

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@borrrden

So you are correct about the code above doing as it intended. My unrelated issue was solved by correctly calling the Database constructor as you mentioned was suspicious. Seems that at some point the old way I was calling that constructor was deprecated. My code now does this.

            database = new Database("nameHere", new DatabaseConfiguration
            {
                Directory = config.Paths.DatabasePath
            });

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Glad to hear that. I am going to close this issue as I think the original poster probably had the same misdiagnosed issue.

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