Index: clang-tools-extra/trunk/clangd/index/dex/dexp/Dexp.cpp
===================================================================
--- clang-tools-extra/trunk/clangd/index/dex/dexp/Dexp.cpp
+++ clang-tools-extra/trunk/clangd/index/dex/dexp/Dexp.cpp
@@ -218,6 +218,12 @@
       IDs.push_back(*SID);
     } else {
       IDs = getSymbolIDsFromIndex(Name, Index);
+      if (IDs.size() > 1) {
+        outs() << formatv("The name {0} is ambiguous, found {1} different "
+                          "symbols. Please use id flag to disambiguate.\n",
+                          Name, IDs.size());
+        return;
+      }
     }
     RefsRequest RefRequest;
     RefRequest.IDs.insert(IDs.begin(), IDs.end());