When csproj contains MsBuild Variables in the ProjectReferences they are not properly replaced but just are literally copied.
"ref": "C:\\Source\\\\Tool\\Project\\$(RootDirectory)Tool\\Tool.csproj@undefined",
"dependsOn": []
},
$(RootDirectory) is a Property in the Build
When csproj contains MsBuild Variables in the ProjectReferences they are not properly replaced but just are literally copied.
$(RootDirectory) is a Property in the Build