Print an error message when an @foo dep isn't found

TransitiveTargetFunction only prints an error message if the package names
match, so it was just exiting with "loading failed" when there was an error
with external dependencies.

--
MOS_MIGRATED_REVID=96204337

1 files changed, 1 insertions, 2 deletions

diff --git a/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java b/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java
index d36953fca6..e2c83a024c 100644
--- a/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java
+++ b/src/main/java/com/google/devtools/build/lib/skyframe/GraphBackedRecursivePackageProvider.java
@@ -62,8 +62,7 @@ public final class GraphBackedRecursivePackageProvider implements RecursivePacka
     } else {
       // If the package key does not exist in the graph, then it must not correspond to any package,
       // because the SkyQuery environment has already loaded the universe.
-      throw new BuildFileNotFoundException(packageName.toString(),
-          "BUILD file not found on package path");
+      throw new BuildFileNotFoundException(packageName, "BUILD file not found on package path");
     }
     return pkgValue.getPackage();
   }