From 589537902e7653c1544cbfd1a6533a034dad6d44 Mon Sep 17 00:00:00 2001
From: AldarisPale <30774432+AldarisPale@users.noreply.github.com>
Date: Thu, 5 Nov 2020 00:28:04 +0200
Subject: [PATCH] Make extmod not found error message mean more

When module is places in the incorrect directory, the loading of the module will fail. Give more meaningful error message and a possible solution to the problem.
I've hit this problem personally and debugging it took more than 3 hours.
---
 salt/pillar/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/salt/pillar/__init__.py b/salt/pillar/__init__.py
index cb910307871..403afb2700e 100644
--- a/salt/pillar/__init__.py
+++ b/salt/pillar/__init__.py
@@ -1212,7 +1212,7 @@ class Pillar:
             for key, val in run.items():
                 if key not in self.ext_pillars:
                     log.critical(
-                        "Specified ext_pillar interface %s is unavailable", key
+                        "ext_pillar interface named %s is unavailable. Make sure it is placed in the correct directory/location. Check https://docs.saltstack.com/en/latest/ref/configuration/master.html#extension-modules for details.", key
                     )
                     continue
                 try: