C#•3y ago

Docker build failing

Hey so i am getting CSC : error CS5001: Program does not contain a static 'Main' method suitable for an entry point [project] when running the dockerfile which i generated with VS. I am using .net 6.

15 Replies

Unknown User•3y ago

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kampfmodzOP•3y ago

there is no static Main in the code since its dotnet 6

Auger•3y ago

Show the Dockerfile as well as the entry point in your code

kampfmodzOP•3y ago

#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

FROM mcr.microsoft.com/dotnet/runtime:6.0 AS base
WORKDIR /app

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY ["VidGrab/VidGrab.DatabaseIndexer.csproj", "Database/VidGrab/"]
COPY ["VidGrab.Mongo/VidGrab.Mongo.csproj", "Database/VidGrab.Mongo/"]
RUN dotnet restore "Database/VidGrab/VidGrab.DatabaseIndexer.csproj"
COPY . .
WORKDIR "/src/Database/VidGrab"
RUN dotnet build "VidGrab.DatabaseIndexer.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "VidGrab.DatabaseIndexer.csproj" -c Release -o /app/publish /p:UseAppHost=false

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

#See https://aka.ms/containerfastmode to understand how Visual Studio uses this Dockerfile to build your images for faster debugging.

FROM mcr.microsoft.com/dotnet/runtime:6.0 AS base
WORKDIR /app

FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build
WORKDIR /src
COPY ["VidGrab/VidGrab.DatabaseIndexer.csproj", "Database/VidGrab/"]
COPY ["VidGrab.Mongo/VidGrab.Mongo.csproj", "Database/VidGrab.Mongo/"]
RUN dotnet restore "Database/VidGrab/VidGrab.DatabaseIndexer.csproj"
COPY . .
WORKDIR "/src/Database/VidGrab"
RUN dotnet build "VidGrab.DatabaseIndexer.csproj" -c Release -o /app/build

FROM build AS publish
RUN dotnet publish "VidGrab.DatabaseIndexer.csproj" -c Release -o /app/publish /p:UseAppHost=false

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

i got no entry point i just start right into it

Auger•3y ago

Even if it's a top-level program, it has an implicit main-method in that file, just compiled behind the scenes. Every program needs an entry point Show the code where you expect your program to start executing from The dockerfile looks right to me

kampfmodzOP•3y ago

Auger•3y ago

Delete that entire line at the top of that screenshot The code will start executing on the line with try now (assuming what you've shown is the Program.cs)

Unknown User•3y ago

Message Not Public

kampfmodzOP•3y ago

still the same what do you mean ?

Unknown User•3y ago

Message Not Public

Auger•3y ago

Can you show the whole file?

kampfmodzOP•3y ago

https://hastebin.com/qeweparahu.csharp

Auger•3y ago

This looks like a correct top-level entrypoint

kampfmodzOP•3y ago

ok so an docker problem ?

Auger•3y ago

Sounds like more a compile-time issue. Are you sure it's building your docker image?

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Docker build failing