1 files changed, 15 insertions, 1 deletions
diff --git a/toolsrc/src/SourceParagraph.cpp b/toolsrc/src/SourceParagraph.cpp
index 34d2a8170..1fa50e233 100644
--- a/toolsrc/src/SourceParagraph.cpp
+++ b/toolsrc/src/SourceParagraph.cpp
@@ -1,5 +1,7 @@
 #include "SourceParagraph.h"
 #include "vcpkglib_helpers.h"
+#include "vcpkg_System.h"
+#include "vcpkg_Maps.h"
 
 namespace vcpkg
 {
@@ -45,6 +47,18 @@ namespace vcpkg
         std::string deps = remove_optional_field(&fields, SourceParagraphOptionalField::BUILD_DEPENDS);
         this->depends = parse_depends(deps);
 
-        this->unparsed_fields = std::move(fields);
+        if (!fields.empty())
+        {
+            const std::vector<std::string> remaining_fields = Maps::extract_keys(fields);
+            const std::vector<std::string>& valid_fields = get_list_of_valid_fields();
+
+            const std::string remaining_fields_as_string = Strings::join(remaining_fields, "\n    ");
+            const std::string valid_fields_as_string = Strings::join(valid_fields, "\n    ");
+
+            System::println(System::color::error, "Error: There are invalid fields in the Source Paragraph of %s", this->name);
+            System::println("The following fields were not expected:\n\n    %s\n\n", remaining_fields_as_string);
+            System::println("This is the list of valid fields (case-sensitive): \n\n    %s\n", valid_fields_as_string);
+            exit(EXIT_FAILURE);
+        }
     }
 }