1 files changed, 3 insertions, 0 deletions
diff --git a/PRESUBMIT.py b/PRESUBMIT.py
index 819c4e64fd..111abb03b0 100644
--- a/PRESUBMIT.py
+++ b/PRESUBMIT.py
@@ -50,6 +50,9 @@ def _CheckUnwantedDependencies(input_api, output_api):
     import checkdeps
     from cpp_checker import CppChecker
     from rules import Rule
+  except ImportError:
+    return [output_api.PresubmitError(
+        'Unable to run checkdeps, does pdfium/buildtools/checkdeps exist?')]
   finally:
     # Restore sys.path to what it was before.
     sys.path = original_sys_path