An assembly specified in the application dependencies manifest (MyApp.deps.json) was not found:

Question

My project is built in Azure Pipelines using SDK 3.1.101, without any errors/warnings, but after deployment to the host (Ubuntu 18.04), I'm getting error:

Error:
    An assembly specified in the application dependencies manifest (MyApp.deps.json) was not found:
        package: 'Microsoft.Data.SqlClient', version: '1.0.19269.1'
        path: 'runtimes/unix/lib/netcoreapp2.1/Microsoft.Data.SqlClient.dll'

Little bit of investigation pointed me that problem comes from Microsoft.EntityFrameworkCore.SqlServer which references Microsoft.Data.SqlClient.

Looks like it tries to find library from v2.1, somehow strange to me - but it's LST, so maybe...

Initially on the hosting had only aspnetcore-runtime-3.1, so, I thought that by installing v2.1 may fix the problem, and installed aspnetcore-runtime-2.1, then SDKs for both versions but nothing helped so far :(

Any thoughts how to fix it?

Answer 1

Found a way to fix it!

By looking into my project's ./bin/Debug/netcoreapp3.1/ directory, fount that, even if I build it on Windows, it still creates runtimes/unix directory and puts there that DLLs that were missed in Ubuntu.

So, by manually upload all from runtimes/unix to the deployment machine, into CONTENT_ROOT of my application - solved it.

P.S.
Still have no idea why it wasn't uploaded during deployment process.
But this is another story ;)