From 72f66bf2e8f2847f6e7dbb041392be56b0479c48 Mon Sep 17 00:00:00 2001
From: Jan Eitzinger <jan.eitzinger@fau.de>
Date: Thu, 10 Jun 2021 09:53:44 +0200
Subject: [PATCH] Add notification for blocked ports.

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

diff --git a/README.md b/README.md
index 28b663b..501c3c6 100644
--- a/README.md
+++ b/README.md
@@ -42,6 +42,7 @@ Before starting the containers the fixture data needs to be prepared:
 * `$ cd data`
 * `$ ./init.sh`
 
+You need to ensure that no other web server is running on port 80. Also existing VPM connections sometimes cause problems with docker.
 After that from the root of the repository you can start up the containers with:
 * `docker-compose up`
 * Wait... and wait a little longer