当有多个运行时，无法发布Dockerfile

我有一个关于Dockerfile工作的问题。我试图理解它背后的工作原理。 发布WebAPIOne时会出现错误，但如果最后生成了WebAPIOne解决方案，请尝试运行publish命令。然后它会完美地执行

FROM mcr.microsoft.com/dotnet/core/aspnet:3.0-buster-slim AS base
WORKDIR /app
EXPOSE 80

FROM mcr.microsoft.com/dotnet/core/sdk:3.0-buster AS build
WORKDIR /src
COPY WebMultipleSolution.sln ./
COPY ClassLibraryOne/*.csproj ./ClassLibraryOne/
COPY ClassLibraryTwo/*.csproj ./ClassLibraryTwo/
COPY ["WebAPIOne/WebAPIOne.csproj", "WebAPIOne/"]
COPY ["WebAPITwo/WebAPITwo.csproj", "WebAPITwo/"]
RUN dotnet restore

COPY . .

WORKDIR "/src/ClassLibraryOne"
RUN dotnet build "ClassLibraryOne.csproj" -c Release -o /app/build

WORKDIR "/src/ClassLibraryTwo"
RUN dotnet build "ClassLibraryTwo.csproj" -c Release -o /app/build

WORKDIR "/src/WebAPIOne"
RUN dotnet build "WebAPIOne.csproj" -c Release -o /app/build

WORKDIR "/src/WebAPITwo"
RUN dotnet build "WebAPITwo.csproj" -c Release -o /app/build

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

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