Hi,

I'm getting this in VS2013:

System.Exception: An exception was thrown in the remote environment: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> Microsoft.Build.Exceptions.InvalidProjectFileException: The expression "[MSBuild]::MakeRelative(E:\MyProject\private\, '')" cannot be evaluated. Parameter "path" cannot have zero length. E:\MyProject\Environment.props
at Microsoft.Build.Shared.ProjectErrorUtilities.ThrowInvalidProject(String errorSubCategoryResourceName, IElementLocation elementLocation, String resourceName, Object[] args)
at Microsoft.Build.Evaluation.Expander`2.Function`1.Execute(Object objectInstance, IPropertyProvider`1 properties, ExpanderOptions options, IElementLocation elementLocation)
at Microsoft.Build.Evaluation.Expander`2.PropertyExpander`1.ExpandPropertyBody(String propertyBody, Object propertyValue, IPropertyProvider`1 properties, ExpanderOptions options, IElementLocation elementLocation, UsedUninitializedProperties usedUninitializedProperties)
at Microsoft.Build.Evaluation.Expander`2.PropertyExpander`1.ExpandPropertiesLeaveTypedAndEscaped(String expression, IPropertyProvider`1 properties, ExpanderOptions options, IElementLocation elementLocation, UsedUninitializedProperties usedUninitializedProperties)
at Microsoft.Build.Evaluation.Expander`2.PropertyExpander`1.ExpandPropertiesLeaveEscaped(String expression, IPropertyProvider`1 properties, ExpanderOptions options, IElementLocation elementLocation, UsedUninitializedProperties usedUninitializedProperties)
at Microsoft.Build.Evaluation.Expander`2.ExpandIntoStringLeaveEscaped(String expression, ExpanderOptions options, IElementLocation elementLocation)
at Microsoft.Build.Evaluation.Evaluator`4.EvaluatePropertyElement(ProjectPropertyElement propertyElement)
at Microsoft.Build.Evaluation.Evaluator`4.EvaluatePropertyGroupElement(ProjectPropertyGroupElement propertyGroupElement)


The offending line in Environment.props appears to be

<_ServiceSpaceRootRelative>$([MSBuild]::MakeRelative($(INETROOT)\$(_ServiceSpaceRootReplace)\, $(MSBuildProjectFullPath)))</_ServiceSpaceRootRelative>


The project itself loads and builds correctly in VS/msbuild.

Any ideas?