| Index: pkg/analysis_server/lib/src/domain_completion.dart | 
| diff --git a/pkg/analysis_server/lib/src/domain_completion.dart b/pkg/analysis_server/lib/src/domain_completion.dart | 
| index 8a95577b096fe255ae01debce9c15edbb93b2654..474156d206d4dacedec88c75429b6eebee18d51d 100644 | 
| --- a/pkg/analysis_server/lib/src/domain_completion.dart | 
| +++ b/pkg/analysis_server/lib/src/domain_completion.dart | 
| @@ -196,7 +196,7 @@ class CompletionDomainHandler extends AbstractRequestHandler { | 
| request, | 
| 'params.offset', | 
| 'Expected offset between 0 and source length inclusive,' | 
| -            ' but found ${offset}')); | 
| +            ' but found $offset')); | 
| return; | 
| } | 
| source = | 
|  |