From c5a6a3ec87a02a5ece37610860f1c8ec50be5bb8 Mon Sep 17 00:00:00 2001
From: Daniel Holmes <daniel@danielholmes.org>
Date: Tue, 29 Aug 2017 15:55:29 +1000
Subject: [PATCH] README notice about multiple versions of GraphQL

---
 README.md | 7 +++++++
 1 file changed, 7 insertions(+)

diff --git a/README.md b/README.md
index 81b63f6..f114459 100644
--- a/README.md
+++ b/README.md
@@ -34,6 +34,13 @@ module.exports = {
 ```
 
   3. :tada:
+
+### Gotchas
+
+If there are multiple versions of GraphQL in your dependency tree it will cause schema validation errors. To get around
+this, ensure you have the same graphql version as your relay-compiler version depends on. To assist this you can 
+[install dependencies as flat](https://yarnpkg.com/lang/en/docs/cli/install/#toc-yarn-install-flat) which ensures only 
+one version of each dependency.
   
 ### TODOs