Add back graphql error fixes #1999 (#2004)

gatsbyjs · Sep 2, 2017 · 6f7b8c3 · 6f7b8c3
1 parent c9bf317
commit 6f7b8c3
Showing 1 changed file with 7 additions and 1 deletion.
diff --git a/packages/gatsby/src/internal-plugins/query-runner/graphql-errors.js b/packages/gatsby/src/internal-plugins/query-runner/graphql-errors.js
@@ -175,12 +175,18 @@ export function graphqlError(
     )
   }
 
-  message = `There was an error while compiling your site's GraphQL queries. `
+  message = `There was an error while compiling your site's GraphQL queries.
+  ${message}
+    `
   if (error.message.match(/must be an instance of/)) {
     message +=
       `This usually means that more than one instance of 'graphql' is installed ` +
       `in your node_modules. Remove all but the top level one or run \`npm dedupe\` to fix it.`
   }
 
+  if (error.message.match(/Duplicate document/)) {
+    message += `${error.message.slice(21)}\n`
+  }
+
   return message
 }