dotnet restore/build fails on linux with error MSB3202, the project file "PARENT_DIR/YYY.proj" was not found [PARENT_DIR/YYY.sln] - linux

Question

I am building simple .net core solution which contains two projects. Here's the sln file
Microsoft Visual Studio Solution File, Format Version 12.00
# Visual Studio Version 16
VisualStudioVersion = 16.0.32930.78
MinimumVisualStudioVersion = 10.0.40219.1
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "DataAccess", "DataAccess\DataAccess.csproj", "{A2215C05-2906-47D8-A51E-986167EED172}"
EndProject
Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Common", "Common\Common.csproj", "{5D3617CC-A0CC-437F-96CC-D64B6F23A668}"
EndProject
Global
GlobalSection(SolutionConfigurationPlatforms) = preSolution
Debug|Any CPU = Debug|Any CPU
Debug|x64 = Debug|x64
Release|Any CPU = Release|Any CPU
Release|x64 = Release|x64
EndGlobalSection
GlobalSection(ProjectConfigurationPlatforms) = postSolution
{A2215C05-2906-47D8-A51E-986167EED172}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Debug|Any CPU.Build.0 = Debug|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Debug|x64.ActiveCfg = Debug|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Debug|x64.Build.0 = Debug|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Release|Any CPU.ActiveCfg = Release|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Release|Any CPU.Build.0 = Release|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Release|x64.ActiveCfg = Release|Any CPU
{A2215C05-2906-47D8-A51E-986167EED172}.Release|x64.Build.0 = Release|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Debug|Any CPU.Build.0 = Debug|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Debug|x64.ActiveCfg = Debug|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Debug|x64.Build.0 = Debug|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Release|Any CPU.ActiveCfg = Release|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Release|Any CPU.Build.0 = Release|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Release|x64.ActiveCfg = Release|Any CPU
{5D3617CC-A0CC-437F-96CC-D64B6F23A668}.Release|x64.Build.0 = Release|Any CPU
EndGlobalSection
GlobalSection(SolutionProperties) = preSolution
HideSolutionNode = FALSE
EndGlobalSection
GlobalSection(ExtensibilityGlobals) = postSolution
SolutionGuid = {5EECAB02-1A61-4FAD-9E00-5B1292E418E6}
EndGlobalSection
EndGlobal
When I run dotnet restore/build from the solution directory on my Windows machine, everything goes as expected and the output is the following
dotnet build
MSBuild version 17.3.2+561848881 for .NET
Determining projects to restore...
All projects are up-to-date for restore.
Common -> C:\git\Common\bin\Debug\netstandard2.1\Common.dll
Common -> C:\git\Common\bin\Debug\netstandard2.0\Common.dll
DataAccess -> C:\git\DataAccess\bin\Debug\netstandard2.0\DataAccess.dll
Build succeeded.
0 Warning(s)
0 Error(s)
Time Elapsed 00:00:03.08
When I am trying to run the same process from the Docker container it fails with the following message
PS /App> pwd
Path
----
/App
PS /App> dotnet build
MSBuild version 17.3.2+561848881 for .NET
/usr/share/dotnet/sdk/6.0.405/NuGet.targets(369,5): error MSB3202: The project file "/App/Common/Common.csproj" was not found. [/App/My.sln]
Build FAILED.
/usr/share/dotnet/sdk/6.0.405/NuGet.targets(369,5): error MSB3202: The project file "/App/Common/Common.csproj" was not found. [/App/My.sln]
0 Warning(s)
1 Error(s)
Time Elapsed 00:00:00.24
I am running the process on
PS /> cat /etc/os-release
PRETTY_NAME="Debian GNU/Linux 11 (bullseye)"
NAME="Debian GNU/Linux"
VERSION_ID="11"
VERSION="11 (bullseye)"
VERSION_CODENAME=bullseye
ID=debian
HOME_URL="https://www.debian.org/"
SUPPORT_URL="https://www.debian.org/support"
BUG_REPORT_URL="https://bugs.debian.org/"
EDIT 1
Here is my Dockerfile content
FROM mcr.microsoft.com/dotnet/sdk:6.0 AS build-env
WORKDIR /App
COPY . ./
RUN dotnet nuget add source 'https://pkgs.dev.azure.com/myorg/_packaging/2bba9c97-9acb-40b5-aa6c-17e17617e3aa/nuget/v3/index.json' -u 'tst' -p 'XXXXXXXXX' --store-password-in-clear-text
RUN wget -q https://packages.microsoft.com/config/ubuntu/20.04/packages-microsoft-prod.deb -O packages-microsoft-prod.deb \
&& dpkg -i packages-microsoft-prod.deb \
&& rm packages-microsoft-prod.deb \
&& apt-get update && apt-get install -y powershell
EDIT 2
If I am running the build on container from individual projects folder, not from solution directory it works as expected
PS /App/Common> pwd
Path
----
/App/Common
PS /App/Common> dotnet build
MSBuild version 17.3.2+561848881 for .NET
Determining projects to restore...
All projects are up-to-date for restore.
Common -> /App/common/bin/Debug/netstandard2.1/Common.dll
Common -> /App/common/bin/Debug/netstandard2.0/Common.dll
Build succeeded.
0 Warning(s)
0 Error(s)
Time Elapsed 00:00:00.67
EDIT 3
I can also confirm that the project file exists inside the container
PS /> pwd
Path
----
/
PS /> ls /App/common/Common.csproj
/App/common/Common.csproj

Answer 1

The issue was case sensitivity of the path.
C:\git\Common
vs
"Common\Common.csproj"
recorder in solution file