Add better error message when enum type is not found (#592)
diff --git a/generator/nanopb_generator.py b/generator/nanopb_generator.py
index d7cad2a..18503ba 100755
--- a/generator/nanopb_generator.py
+++ b/generator/nanopb_generator.py
@@ -1295,7 +1295,12 @@
# The partial descriptor doesn't include the enum type
# so we fake it with int64.
enumname = names_from_type_name(field.type_name)
- enumtype = dependencies[str(enumname)]
+ try:
+ enumtype = dependencies[str(enumname)]
+ except KeyError:
+ raise Exception("Could not find enum type %s while generating default values for %s.\n" % (enumname, self.name)
+ + "Try passing all source files to generator at once, or use -I option.")
+
if field.HasField('default_value'):
defvals = [v for n,v in enumtype.values if n.parts[-1] == field.default_value]
else:
