From 485f4740ee3ba4228ba3345873eb530466a8f42d Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Domen=20Ko=C5=BEar?= <domen@dev.si>
Date: Wed, 1 Jan 2014 18:10:48 +0100
Subject: [PATCH] wording

---
 src/libstore/build.cc | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/libstore/build.cc b/src/libstore/build.cc
index 0a8bdbaf5e..dcd7343394 100644
--- a/src/libstore/build.cc
+++ b/src/libstore/build.cc
@@ -1011,7 +1011,7 @@ void DerivationGoal::outputsSubstituted()
     trace("all outputs substituted (maybe)");
 
     if (nrFailed > 0 && nrFailed > nrNoSubstituters + nrIncompleteClosure && !settings.tryFallback)
-        throw Error(format("some substitutes for the outputs of derivation `%1%' failed; try `--fallback'") % drvPath);
+        throw Error(format("some substitutes for the outputs of derivation `%1%' failed (usually happens due to networking issues); try `--fallback' to build derivation from source ") % drvPath);
 
     /*  If the substitutes form an incomplete closure, then we should
         build the dependencies of this derivation, but after that, we