Index: sdk/lib/_internal/pub/lib/src/solver/version_solver.dart |
diff --git a/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart b/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart |
index 09d5fbf22fcbbed627df7da8e73121a58b2dcd6b..d81b81815cf1a6006fad62c8dd14f842855cfa5a 100644 |
--- a/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart |
+++ b/sdk/lib/_internal/pub/lib/src/solver/version_solver.dart |
@@ -275,7 +275,7 @@ class UnknownSourceException extends SolveFailure { |
: super(package, dependencies); |
String toString() { |
- var dep = only(dependencies); |
+ var dep = dependencies.single; |
return "Package '${dep.depender}' depends on '${dep.dep.name}' from " |
"unknown source '${dep.dep.source}'."; |
} |