From 42fffae574fe41e79b9b7f8b2f93b5b343604783 Mon Sep 17 00:00:00 2001
From: Alexander Polcyn <apolcyn@google.com>
Date: Mon, 10 Aug 2020 11:18:46 -0700
Subject: [PATCH] Include the target_uri in target uri is not valid error
 messages

---
 src/core/ext/filters/client_channel/client_channel.cc | 6 ++++--
 1 file changed, 4 insertions(+), 2 deletions(-)

diff --git a/src/core/ext/filters/client_channel/client_channel.cc b/src/core/ext/filters/client_channel/client_channel.cc
index 1b48d6a4d37..ecd80ac16e8 100644
--- a/src/core/ext/filters/client_channel/client_channel.cc
+++ b/src/core/ext/filters/client_channel/client_channel.cc
@@ -28,6 +28,7 @@
 
 #include <set>
 
+#include "absl/strings/str_cat.h"
 #include "absl/strings/string_view.h"
 
 #include <grpc/support/alloc.h>
@@ -1683,8 +1684,9 @@ ChannelData::ChannelData(grpc_channel_element_args* args, grpc_error** error)
                       ? new_args
                       : grpc_channel_args_copy(args->channel_args);
   if (!ResolverRegistry::IsValidTarget(target_uri_.get())) {
-    *error =
-        GRPC_ERROR_CREATE_FROM_STATIC_STRING("the target uri is not valid.");
+    std::string error_message =
+        absl::StrCat("the target uri is not valid: ", target_uri_.get());
+    *error = GRPC_ERROR_CREATE_FROM_COPIED_STRING(error_message.c_str());
     return;
   }
   *error = GRPC_ERROR_NONE;