c# - Visual Studio DockerFile generated not working - Stack Overflow

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I am trying to containerize my .NET 8 application using Docker. My project has the following structure:

/MyApp
│── solution.sln
│── src
│   ├── Adapters
│   │   ├── MyApp.API
│   │   │   ├── MyApp.API.csproj
│   ├── Core
│   │   ├── MyApp.Application
│   │   │   ├── MyApp.Application.csproj
│   │   ├── MyApp.Domain
│   │   │   ├── MyApp.Domain.csproj
│   │   ├── MyApp.Infrastructure
│   │   │   ├── MyApp.Infrastructure.csproj
│   ├── CrossCutting
│   │   ├── MyApp.CrossCutting
│   │   │   ├── MyApp.CrossCutting.csproj
│   ├── Tests
│   │   ├── MyApp.Tests
│   │   │   ├── MyApp.Tests.csproj

I generated the dockerfile using the Visual Studio support, the only change that I made was to move the dockerfile to the root of the project, so the commands in the generated file make more sense.

FROM mcr.microsoft/dotnet/aspnet:8.0 AS base
WORKDIR /app
EXPOSE 8080
EXPOSE 8081

FROM mcr.microsoft/dotnet/sdk:8.0 AS build
ARG BUILD_CONFIGURATION=Release
WORKDIR /src

# Copy only .csproj files first for better caching
COPY ["src/Adapters/MyApp.API/MyApp.API.csproj", "src/Adapters/MyApp.API/"]
COPY ["src/Core/MyApp.Application/MyApp.Application.csproj", "src/Core/MyApp.Application/"]
COPY ["src/Core/MyApp.Domain/MyApp.Domain.csproj", "src/Core/MyApp.Domain/"]
COPY ["src/Core/MyApp.Infrastructure/MyApp.Infrastructure.csproj", "src/Core/MyApp.Infrastructure/"]
COPY ["src/CrossCutting/MyApp.CrossCutting/MyApp.CrossCutting.csproj", "src/CrossCutting/MyApp.CrossCutting/"]

# Restore dependencies
RUN dotnet restore "./src/Adapters/MyApp.API/MyApp.API.csproj"

# Copy the entire source code after restoring dependencies
COPY . .

# Move to the API directory
WORKDIR "/src/src/Adapters/MyApp.API"

# Build the API
RUN dotnet build "./MyApp.API.csproj" -c $BUILD_CONFIGURATION -o /app/build

FROM build AS publish
ARG BUILD_CONFIGURATION=Release
RUN dotnet publish "./MyApp.API.csproj" -c $BUILD_CONFIGURATION -o /app/publish /p:UseAppHost=false

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

But is not working. When I run docker build -t myapp-api . (at the root folder of my project), I get this error:

[+] Building 28.2s (19/21)                                                   docker:desktop-linux
 => [internal] load build definition from Dockerfile                                         0.0s
 => => transferring dockerfile: 1.36kB                                                       0.0s
 => [internal] load metadata for mcr.microsoft/dotnet/sdk:8.0                            0.2s
 => [internal] load metadata for mcr.microsoft/dotnet/aspnet:8.0                         0.2s
 => [internal] load .dockerignore                                                            0.0s
 => => transferring context: 464B                                                            0.0s
 => [build  1/11] FROM mcr.microsoft/dotnet/sdk:8.0@sha256:b27b1354af00b7d4c922d74084f5  0.0s
 => => resolve mcr.microsoft/dotnet/sdk:8.0@sha256:b27b1354af00b7d4c922d74084f5c8a5cbf5  0.0s
 => [internal] load build context                                                            0.0s
 => => transferring context: 12.86kB                                                         0.0s
 => [base 1/2] FROM mcr.microsoft/dotnet/aspnet:8.0@sha256:587c1dd115e4d6707ff656d30ace  0.0s
 => => resolve mcr.microsoft/dotnet/aspnet:8.0@sha256:587c1dd115e4d6707ff656d30ace5da9f  0.0s
 => CACHED [base 2/2] WORKDIR /app                                                           0.0s
 => CACHED [final 1/2] WORKDIR /app                                                          0.0s
 => CACHED [build  2/11] WORKDIR /src                                                        0.0s
 => CACHED [build  3/11] COPY [src/Adapters/MyApp.API/MyApp.API.csproj, src/Adapters/PetZ  0.0s
 => CACHED [build  4/11] COPY [src/Core/MyApp.Application/MyApp.Application.csproj, src/C  0.0s
 => [build  5/11] COPY [src/Core/MyApp.Domain/MyApp.Domain.csproj, src/Core/MyApp.Domain  0.0s
 => [build  6/11] COPY [src/Core/MyApp.Infrastructure/MyApp.Infrastructure.csproj, src/Co  0.1s
 => [build  7/11] COPY [src/CrossCutting/MyApp.CrossCutting/MyApp.CrossCutting.csproj, sr  0.0s
 => [build  8/11] RUN dotnet restore "./src/Adapters/MyApp.API/MyApp.API.csproj"          23.9s
 => [build  9/11] COPY . .                                                                   0.2s
 => [build 10/11] WORKDIR /src/src/Adapters/MyApp.API                                       0.0s
 => ERROR [build 11/11] RUN dotnet build "./MyApp.API.csproj" -c Release -o /app/build      3.7s
------
 > [build 11/11] RUN dotnet build "./MyApp.API.csproj" -c Release -o /app/build:
0.840   Determining projects to restore...
0.844   Skipping project "/src/src/core/MyApp.Application/MyApp.Application.csproj" because it was not found.
0.844   Skipping project "/src/src/core/MyApp.Infrastructure/MyApp.Infrastructure.csproj" because it was not found.
0.865   Skipping project "/src/src/core/MyApp.Application/MyApp.Application.csproj" because it was not found.
0.865   Skipping project "/src/src/core/MyApp.Infrastructure/MyApp.Infrastructure.csproj" because it was not found.
1.192   All projects are up-to-date for restore.
3.137   MyApp.CrossCutting -> /app/build/MyApp.CrossCutting.dll
3.149 /usr/share/dotnet/sdk/8.0.405/Microsoft.Common.CurrentVersion.targets(2176,5): warning : The referenced project '../../core/MyApp.Application/MyApp.Application.csproj' does not exist. [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.149 /usr/share/dotnet/sdk/8.0.405/Microsoft.Common.CurrentVersion.targets(2176,5): warning : The referenced project '../../core/MyApp.Infrastructure/MyApp.Infrastructure.csproj' does not exist. [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(8,26): error CS0234: The type or namespace name 'Services' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(10,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(11,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(12,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(13,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(14,14): error CS0234: The type or namespace name 'Infrastructure' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(15,14): error CS0234: The type or namespace name 'Infrastructure' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/Auth/AuthController.cs(5,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/Pet/PetController .cs(4,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/Pet/PetController .cs(5,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(4,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(5,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(6,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(7,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(4,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(5,26): error CS0234: The type or namespace name 'Resources' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Program.cs(1,7): error CS0246: The type or namespace name 'FluentValidation' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(15,43): error CS0246: The type or namespace name 'Messages' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/Pet/PetController .cs(26,58): error CS0246: The type or namespace name 'CreatePetRequest' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(28,58): error CS0246: The type or namespace name 'CreateUserRequest' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(17,140): error CS0246: The type or namespace name 'Messages' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.578 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(37,66): error CS0246: The type or namespace name 'FinishUserRegistrationRequest' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.585
3.585 Build FAILED.
3.585
3.586 /src/src/CrossCutting/MyApp.CrossCutting/Auth/TokenProvider.cs(25,46): warning CS8604: Possible null reference argument for parameter 's' in 'byte[] Encoding.GetBytes(string s)'. [/src/src/CrossCutting/MyApp.CrossCutting/MyApp.CrossCutting.csproj]
3.586 /src/src/CrossCutting/MyApp.CrossCutting/Auth/TokenProvider.cs(50,46): warning CS8604: Possible null reference argument for parameter 's' in 'byte[] Encoding.GetBytes(string s)'. [/src/src/CrossCutting/MyApp.CrossCutting/MyApp.CrossCutting.csproj]
3.586 /src/src/CrossCutting/MyApp.CrossCutting/Auth/TokenProvider.cs(70,24): warning CS8603: Possible null reference return. [/src/src/CrossCutting/MyApp.CrossCutting/MyApp.CrossCutting.csproj]
3.586 /usr/share/dotnet/sdk/8.0.405/Microsoft.Common.CurrentVersion.targets(2176,5): warning : The referenced project '../../core/MyApp.Application/MyApp.Application.csproj' does not exist. [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /usr/share/dotnet/sdk/8.0.405/Microsoft.Common.CurrentVersion.targets(2176,5): warning : The referenced project '../../core/MyApp.Infrastructure/MyApp.Infrastructure.csproj' does not exist. [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(8,26): error CS0234: The type or namespace name 'Services' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(10,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(11,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(12,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(13,14): error CS0234: The type or namespace name 'Domain' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(14,14): error CS0234: The type or namespace name 'Infrastructure' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Configuration/DependencyInjection.cs(15,14): error CS0234: The type or namespace name 'Infrastructure' does not exist in the namespace 'MyApp' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/Auth/AuthController.cs(5,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/Pet/PetController .cs(4,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/Pet/PetController .cs(5,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(4,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(5,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(6,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(7,26): error CS0234: The type or namespace name 'Handlers' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(4,26): error CS0234: The type or namespace name 'Dto' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(5,26): error CS0234: The type or namespace name 'Resources' does not exist in the namespace 'MyApp.Application' (are you missing an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Program.cs(1,7): error CS0246: The type or namespace name 'FluentValidation' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(15,43): error CS0246: The type or namespace name 'Messages' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/Pet/PetController .cs(26,58): error CS0246: The type or namespace name 'CreatePetRequest' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(28,58): error CS0246: The type or namespace name 'CreateUserRequest' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Middleware/AuthenticationMiddleware.cs(17,140): error CS0246: The type or namespace name 'Messages' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586 /src/src/Adapters/MyApp.API/Controllers/User/UserController.cs(37,66): error CS0246: The type or namespace name 'FinishUserRegistrationRequest' could not be found (are you missing a using directive or an assembly reference?) [/src/src/Adapters/MyApp.API/MyApp.API.csproj]
3.586     5 Warning(s)
3.586     22 Error(s)
3.586

Sorry for the verbose post, but I've been struggling for the past hours with this error.

I've already checked the src/src folders to check if it wasn't some redundance.

I have already tried to remove the src/src and tested different paths, but that didn't solve my problem.

Can anyone help me?

Thanks

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