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Docker ERROR: failed to solve: failed to compute cache key: failed to calculate checksum

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Hi all,

Another issue that I encountered while learning Docker specifically build a docker image using .NET Core is the "ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref 405e1ab5-1d6a-4b32-b558-cdcae05e5207::q4alx8yd9wbrz32p1zv7s1yg7: "/dockerdemo/dockerdemo.csproj": not found". My project is a simple ASP.NET Core Web API project.
ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref 405e1ab5-1d6a-4b32-b558-cdcae05e5207
After doing some research, the solution that works for me is to cut the docker file "DockerFile" from the folder that contains the .csproj file. Then paste it to the root folder of the project that contains the solution file (.sln). Run again powershell and execute docker build command that points to the root folder of the project where the docker file is cut and pasted.
ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref 405e1ab5-1d6a-4b32-b558-cdcae05e5207


That's it!

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