Question

我面临着奇怪的问题。当我在Windows计算机（笔记本电脑）上构建Dockerfile时，出现以下错误，并且尝试在Azure DevOps上进行部署时也遇到了相同的错误。

Step 7/17 : COPY ["WebApp.csproj", ""]
 ---> 3f3e198d00aa
Step 8/17 : RUN dotnet restore "/WebApp.csproj"
 ---> Running in 51f16f947ffb
MSBUILD : error MSB1001: Unknown switch.
Switch: /WebApp.csproj

For switch syntax, type "MSBuild -help"
The command '/bin/sh -c dotnet restore "/WebApp.csproj"' returned a non-zero code: 1
PS C:\Users\user\Desktop\Directory>

但是当我们使用 Visual Studio 构建它时，同样的Dockerfile可以很好地运行，并且可以正常运行。

Docker文件如下：

FROM mcr.microsoft.com/dotnet/core/aspnet:2.2-stretch-slim AS base
WORKDIR /app
EXPOSE 80
EXPOSE 443

FROM mcr.microsoft.com/dotnet/core/sdk:2.2-stretch AS build
WORKDIR /src
COPY ["WebApp.csproj", ""]
RUN dotnet restore "/WebApp.csproj"
COPY . .
WORKDIR "/src/"
RUN dotnet build "WebApp.csproj" -c Release -o /app

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

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

Answer 1

由于您的dotnet restore中有/，因此MSBuild认为它是一个开关（如/p:）并且失败了，您只需要删除它即可：

RUN dotnet restore "WebApp.csproj"

Docker无法在Azure Pipelines中生成“错误MSB1001”

1 个答案: