docker build failed

[infofromca]

Describe the bug

To Reproduce

Steps to reproduce the behavior:

1. Go to 'the root folder of cms.web'

2. docker build --build-arg TARGETOS=linux -t linuxoc .

3. See error
   /app/OrchardCore/Directory.Build.props(3,3): error MSB4019: The imported project "/Directory.Build.props" was not found. Confirm that the expression in the Import declaration "../../Directory.Build.props" is correct, and that the file exists on disk. [/app/OrchardCore/OrchardCore.Application.Cms.Targets/OrchardCore.Application.Cms.Targets.csproj]
   24.28 /app/OrchardCore/Directory.Build.props(3,3): error MSB4019: The imported project "/Directory.Build.props" was not found. Confirm that the expression in the Import declaration "../../Directory.Build.props" is correct, and that the file exists on disk. [/app/OrchardCore/OrchardCore.AuditTrail.Abstractions/OrchardCore.AuditTrail.Abstractions.csproj]
   24.29 /app/OrchardCore.Modules/Directory.Build.props(3,3): error MSB4019: The imported project "/Directory.Build.props" was not found. Confirm that the expression in the Import declaration "../../Directory.Build.props" is correct, and that the file exists on disk. [/app/OrchardCore.Modules/OrchardCore.Autoroute/OrchardCore.Autoroute.csproj]
   24.29 /app/OrchardCore.Modules/Directory.Build.props(3,3): error MSB4019: The imported project "/Directory.Build.props" was not found. Confirm that the expression in the Import declaration "../../Directory.Build.props" is correct, and that the file exists on disk. [/app/OrchardCore.Modules/OrchardCore.Alias/OrchardCore.Alias.csproj]
   24.29 /app/OrchardCore/Directory.Build.props(3,3): error MSB4019: The imported project "/Directory.Build.props" was not found. Confirm that the expression in the Import declaration "../../Directory.Build.props" is correct, and that the file exists on disk. [/app/OrchardCore/OrchardCore.Admin.Abstractions/OrchardCore.Admin.Abstractions.csproj]

Expected behavior

A clear and concise description of what you expected to happen.

4 because file Directory.Build.props under first OrchardCore is outside src which could not be copied to /app
by this COPY ./src /app

[Piedone]

Apart from publishing to Docker Hub, what does the preview build do differently that it works?

[infofromca]

did the preview use dockerfile

[Piedone]

Yes: https://github.com/OrchardCMS/OrchardCore/blob/main/Dockerfile-CI

[infofromca]

CLICK the link of -CI, I could not find dockerfile which COPY ./src /app on line 9

[sebastienros]

I confirm the Dockerfile is broken because Directory.Build.props is not imported. The COPY ./src /app should be changed/

[sebastienros]

For @Piedone the preview in CI is actually copying the already built folder that the CI produced. We have two docker files in the root folder.