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-rw-r--r--nix/libstore/build.cc2
1 files changed, 1 insertions, 1 deletions
diff --git a/nix/libstore/build.cc b/nix/libstore/build.cc
index 9305208009..006e4ebbbb 100644
--- a/nix/libstore/build.cc
+++ b/nix/libstore/build.cc
@@ -979,7 +979,7 @@ void DerivationGoal::outputsSubstituted()
return;
}
if (buildMode == bmCheck && nrInvalid > 0)
- throw Error(format("some outputs of `%1%' are not valid, so checking is not possible") % drvPath);
+ throw Error(format("`%1%' is missing outputs; build it normally before using `--check'") % drvPath);
/* Otherwise, at least one of the output paths could not be
produced using a substitute. So we have to build instead. */