i am trying to build the .net project.
when i use
FROM mcr.microsoft.com/dotnet/sdk:5.0 AS build
so, the project is developed by 4.5 Framework. I can not upgrade (Businnes matter).
so i google it and found this
so i change the syntax into
FROM mcr.microsoft.com/dotnet/framework/sdk:4.8 AS build
i am new to docker. not know what the meaning of the error message.
Source: Docker Questions