Also tell which path it tried

NixOS · Aug 21, 2016 · 90bbcfd · 90bbcfd
1 parent 20eb474
commit 90bbcfd
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/src/libstore/build.cc b/src/libstore/build.cc
@@ -597,7 +597,7 @@ HookInstance::HookInstance()
     buildHook = canonPath(buildHook);
 
     if (!pathExists(buildHook))
-        throw SysError(format("NIX_BUILD_HOOK does not exist"));
+        throw SysError(format("NIX_BUILD_HOOK '%1%' does not exist" % buildHook));
 
     /* Create a pipe to get the output of the child. */
     fromHook.create();