From 4c24f9d41c09d0fc6791ec04c16496053662f969 Mon Sep 17 00:00:00 2001
From: Colombo <lepersorium@gmail.com>
Date: Thu, 19 Mar 2020 13:29:33 +0400
Subject: [PATCH] _

---
 core/leras/ops/__init__.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/core/leras/ops/__init__.py b/core/leras/ops/__init__.py
index 4931488..dac2992 100644
--- a/core/leras/ops/__init__.py
+++ b/core/leras/ops/__init__.py
@@ -56,7 +56,7 @@ def tf_gradients ( loss, vars ):
     gv = [*zip(grads,vars)]
     for g,v in gv:
         if g is None:
-            raise Exception(f"No gradient for variable {v.name}")
+            raise Exception(f"Variable {v.name} is declared as trainable, but no tensors flow through it.")
     return gv
 nn.gradients = tf_gradients