This version of Microsoft.AspNetCore.All is only compatible with the netcoreapp2.1 target framework

I had the same problem, but then I had not updated the publish profile file(.pubxml) for the right targetenvironment

< TargetFramework>netcoreapp2.1< /TargetFramework>

And regarding to earlier answer the row

< DotNetCliToolReference Include="Microsoft.EntityFrameworkCore.Tools.DotNet" Version="2.0.1" />

Show be removed in 2.1 version beacuse of obsolete and are included nowaday

To follow on from joakimja's post, you can also update the .pubxml file via the VS2017 IDE. Right click on your project and select "publish" and then click "configure" on the "trouble shooting info" row, then go to the "settings" tab, here you can set the "Target Framework" - in fact this should have automatically updated to "netcoreapp2.1" just by opening the dialog. Click "Save" and this will update the target framework in the pubxml file. Then try publishing again.