diff --git a/src/Psalm/Internal/Codebase/Populator.php b/src/Psalm/Internal/Codebase/Populator.php
index e165d276a..971c109c1 100644
--- a/src/Psalm/Internal/Codebase/Populator.php
+++ b/src/Psalm/Internal/Codebase/Populator.php
@@ -118,7 +118,11 @@ class Populator
             }
 
             foreach ($class_storage->dependent_classlikes as $dependent_classlike_lc => $_) {
-                $dependee_storage = $this->classlike_storage_provider->get($dependent_classlike_lc);
+                try {
+                    $dependee_storage = $this->classlike_storage_provider->get($dependent_classlike_lc);
+                } catch (\InvalidArgumentException $exception) {
+                    continue;
+                }
 
                 $class_storage->dependent_classlikes += $dependee_storage->dependent_classlikes;
             }