| Errors: { |
| org-dartlang-debug:synthetic_debug_expression:1:2: Error: Cannot invoke an instance of '_Closure' because it declares 'call' to be something other than a method. |
| - '_Closure' is from 'dart:core'. |
| Try changing 'call' to a method or explicitly invoke 'call'. |
| x().fold<int>(0, (previousValue, element) => previousValue + element.length) |
| ^ |
| } |
| method /* from org-dartlang-debug:synthetic_debug_expression */ debugExpr(dart.core::_Closure x) → dynamic |
| return invalid-expression "org-dartlang-debug:synthetic_debug_expression:1:2: Error: Cannot invoke an instance of '_Closure' because it declares 'call' to be something other than a method.\n - '_Closure' is from 'dart:core'.\nTry changing 'call' to a method or explicitly invoke 'call'.\nx().fold<int>(0, (previousValue, element) => previousValue + element.length)\n ^"{dynamic}.fold<dart.core::int>(0, (dynamic previousValue, dynamic element) → dynamic => previousValue{dynamic}.+(element{dynamic}.length)); |