@@ -53,7 +53,6 @@ Project("{9A19103F-16F7-4668-BE54-9A1E7A4F7556}") = "Python.PythonTestsRunner",
 EndProject
 Project("{2150E333-8FDC-42A3-9474-1A3956D46DE8}") = "Build", "Build", "{142A6752-C2C2-4F95-B982-193418001B65}"
 	ProjectSection(SolutionItems) = preProject
-		configured.props = configured.props
 		Directory.Build.props = Directory.Build.props
 	EndProjectSection
 EndProject
 
@@ -24,8 +24,7 @@ internal static void Initialize(Version version, BorrowedReference pyType)
             if (typeOffsetsClass is null)
             {
                 var types = thisAssembly.GetTypes().Select(type => type.Name).Where(name => name.StartsWith("TypeOffset"));
-                string message = $"Searching for {className}, found {string.Join(",", types)}. " +
-                    "If you are building Python.NET from source, make sure you have run 'python setup.py configure' to fill in configured.props";
+                string message = $"Searching for {className}, found {string.Join(",", types)}.";
                 throw new NotSupportedException($"Python ABI v{version} is not supported: {message}");
             }
             var typeOffsets = (ITypeOffsets)Activator.CreateInstance(typeOffsetsClass);
Original file line number	Diff line number	Diff line change
@@ -24,8 +24,7 @@ internal static void Initialize(Version version, BorrowedReference pyType)
24	24	if (typeOffsetsClass is null)
25	25	{
26	26	var types = thisAssembly.GetTypes().Select(type => type.Name).Where(name => name.StartsWith("TypeOffset"));
27		- string message = $"Searching for {className}, found {string.Join(",", types)}. " +
28		- "If you are building Python.NET from source, make sure you have run 'python setup.py configure' to fill in configured.props";
	27	+ string message = $"Searching for {className}, found {string.Join(",", types)}.";
29	28	throw new NotSupportedException($"Python ABI v{version} is not supported: {message}");
30	29	}
31	30	var typeOffsets = (ITypeOffsets)Activator.CreateInstance(typeOffsetsClass);