Index: pkg/polymer/lib/src/build/runner.dart |
diff --git a/pkg/polymer/lib/src/build/runner.dart b/pkg/polymer/lib/src/build/runner.dart |
index 2a9e18a464c0f5461d11fd1dd3c4d455deea0032..dff520bb876e814a5923b468024eaed824fbb0f0 100644 |
--- a/pkg/polymer/lib/src/build/runner.dart |
+++ b/pkg/polymer/lib/src/build/runner.dart |
@@ -346,7 +346,7 @@ String _jsonFormatter(LogEntry entry) { |
? [{'method': kind, 'params': {'message': entry.message}}] |
: [{'method': kind, |
'params': { |
- 'file': span.sourceUrl, |
+ 'file': span.sourceUrl.toString(), |
'message': entry.message, |
'line': span.start.line + 1, |
'charStart': span.start.offset, |