why dotnet 5 docker container fail in run time?

Question

I have a dotnet5 Console application that is inside a solution and has dependencies on other sibling projects. I create the Docker file with visual studio tools and this is the Docker file:

FROM mcr.microsoft.com/dotnet/runtime:5.0-buster-slim AS base
WORKDIR /app

FROM mcr.microsoft.com/dotnet/sdk:5.0-buster-slim AS build
WORKDIR /src
COPY ["src/MyProject/MyProject.Launcher/MyProject.Launcher.csproj", "src/MyProject/MyProject.Launcher/"]
COPY ["src/MyProject/MyProject.DataAccess/MyProject.DataAcess.csproj", "src/MyProject/MyProject.DataAccess/"]
COPY ["src/MyProject/MyProject.Service/MyProject.Service.csproj", "src/MyProject/MyProject.Service/]
COPY ["src/Domain/MyProject.Domain.Model/MyProject.Domain.Model.csproj", "src/Domain/MyProject.Domain.Model/"]
RUN dotnet restore "src/MyProject/MyProject.Launcher/MyProject.Launcher.csproj"
COPY . .
WORKDIR "/src/src/MyProject/MyProject.Launcher"
RUN dotnet build "MyProject.Launcher.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "MyProject.Launcher.csproj" -c Release -o /app/publish

FROM base AS final
WORKDIR /app
COPY --from=publish /app/publish .
ENTRYPOINT ["dotnet", "MyProject.Launcher.dll"]

building image is ok and it added normally to my local image registry but when I try to run this image and create a container I am getting this error:

It was not possible to find any compatible framework version The framework 'Microsoft.AspNetCore.App', version '5.0.0' was not found.

No frameworks were found.

You can resolve the problem by installing the specified framework and/or SDK.

If it's an ASP .Net application, use the `aspnetcore` runtime container. — Daniel Mann, Apr 26 '21 at 16:47
this is an agent (worker) console application. Just run background worker with IHostBuilder().Build().Run() — Navid_pdp11, Apr 26 '21 at 17:19
if your project just created as `Microsoft.NET.Sdk.Worker` then it should work, probably one of your dependencies requires asp.net core? — Exploding Kitten, Apr 26 '21 at 21:11

score 5 · Accepted Answer · answered Apr 27 '21 at 07:11

5

Use this as your base image:

FROM mcr.microsoft.com/dotnet/aspnet:5.0.0-buster-slim AS base

answered Apr 27 '21 at 07:11

StefanFFM

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score 1 · Answer 2 · answered Apr 27 '21 at 06:57

I Think You should check docker hub and search for .NET 5 SDK then install that image on your container then its will be fixed :

I Found Dotnet 3.1 SDK but try to find dotnet 5 SDK

I think after installation this error will be fix

Sorry For my Bad English

:)

why dotnet 5 docker container fail in run time?

2 Answers2