Cannot resolve parameter 'Volo.Abp.Caching.IDistributedCache

[mabusaa]

I am trying to use Redis cache in .net core 3.1 , I am injecting the interface "IDistributedCache" in App service constructor , but I am receiving the below error :

---> Autofac.Core.DependencyResolutionException: None of the constructors found with 'Autofac.Core.Activators.Reflection.DefaultConstructorFinder' on type 'Castle.Proxies.RequestStatusAppServiceProxy' can be invoked with the available services and parameters:
Cannot resolve parameter 'Volo.Abp.Caching.IDistributedCache1[System.Collections.Generic.List1

Module Configuration

private void ConfigureRedis(
            ServiceConfigurationContext context,
            IConfiguration configuration,
            IWebHostEnvironment hostingEnvironment)
        {

            context.Services.AddStackExchangeRedisCache(options =>
            {
                options.Configuration = configuration["Redis:Configuration"];
            });

            var redis = ConnectionMultiplexer.Connect(configuration["Redis:Configuration"]);
            context.Services
                .AddDataProtection()
                .PersistKeysToStackExchangeRedis(redis, "Coo-Protection-Keys");
        }

[hikalkan]

Are you injecting IDistributedCache<List<T>>? I suggest you to create another class to use for the cache and add List<T> inside it.
We didn't test well with generics as the IDistributedCache type parameter.
We can try to add this support if it is not supported, but first I want to understand if it works as I said.

[mabusaa]

My bad , Solved by adding [DependsOn(typeof(AbpCachingModule))]

[mabusaa]

It will be great if this was added to documentation @hikalkan

[hikalkan]

Startup templates already has this dependency, so didn't need to document. However, you are right, anyone may start with an empty project and want to use the caching module. Created an issue: #2842

[Jesn]

Are you injecting IDistributedCache<List<T>>? I suggest you to create another class to use for the cache and add List<T> inside it. We didn't test well with generics as the IDistributedCache type parameter. We can try to add this support if it is not supported, but first I want to understand if it works as I said.

 private readonly IDistributedCache<List<SpeedTestJobV2Args>, string> _speedTestJobArgCache;

 await _speedTestJobArgCache.SetAsync("SpeedTestJobV2Args",
                listArgs,
                new DistributedCacheEntryOptions()
                {
                    SlidingExpiration = TimeSpan.FromHours(2)
                }, token: cancellationToken);

Found the generated redis key as follows

c:System.Collections.Generic.List`1[[Rich.MagicNetWork.BackgroundJob.SpeedTest.Dto.SpeedTestJobV2Args, Rich.MagicNetWork.BackgroundJob, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null]],k:MagicNetwork:speedTestArgs