From b63f3f7b1f50397b9af6f4a724941f45992fe060 Mon Sep 17 00:00:00 2001
From: "nicolas.dorier" <nicolas.dorier@gmail.com>
Date: Mon, 16 Jul 2018 16:09:26 +0900
Subject: [PATCH] Ignore yaml nodes without main node

---
 docker-compose-generator/src/DockerComposeDefinition.cs | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/docker-compose-generator/src/DockerComposeDefinition.cs b/docker-compose-generator/src/DockerComposeDefinition.cs
index 5fbdef8..def8cf9 100644
--- a/docker-compose-generator/src/DockerComposeDefinition.cs
+++ b/docker-compose-generator/src/DockerComposeDefinition.cs
@@ -80,8 +80,9 @@ namespace DockerGenerator
                 .GroupBy(s => s.Key.ToString(), s => s.Value)
                 .Select(group =>
                     (GroupName: group.Key,
-                     MainNode: group.OfType<YamlMappingNode>().Single(n => n.Children.ContainsKey("image")),
+                     MainNode: group.OfType<YamlMappingNode>().SingleOrDefault(n => n.Children.ContainsKey("image")),
                      MergedNodes: group.OfType<YamlMappingNode>().Where(n => !n.Children.ContainsKey("image"))))
+                .Where(_ => _.MainNode != null)
                 .Select(_ =>
                 {
                     foreach(var node in _.MergedNodes)