|  | library; | 
|  | // | 
|  | // Problems in library: | 
|  | // | 
|  | // pkg/front_end/testcases/general/unresolved_prefix_access.dart:8:10: Error: Method not found: 'unresolved'. | 
|  | //   prefix.unresolved(); | 
|  | //          ^^^^^^^^^^ | 
|  | // | 
|  | // pkg/front_end/testcases/general/unresolved_prefix_access.dart:9:3: Error: A prefix can't be used with null-aware operators. | 
|  | // Try replacing '?.' with '.' | 
|  | //   prefix?.test(); | 
|  | //   ^^^^^^ | 
|  | // | 
|  | import self as self; | 
|  |  | 
|  | import "org-dartlang-testcase:///unresolved_prefix_access.dart" as prefix; | 
|  |  | 
|  | static method test() → dynamic { | 
|  | invalid-expression "pkg/front_end/testcases/general/unresolved_prefix_access.dart:8:10: Error: Method not found: 'unresolved'. | 
|  | prefix.unresolved(); | 
|  | ^^^^^^^^^^"; | 
|  | invalid-expression "pkg/front_end/testcases/general/unresolved_prefix_access.dart:9:3: Error: A prefix can't be used with null-aware operators. | 
|  | Try replacing '?.' with '.' | 
|  | prefix?.test(); | 
|  | ^^^^^^" in self::test(); | 
|  | } | 
|  | static method main() → dynamic {} |