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-rw-r--r--src/compiler/GF/Compile/Compute/ConcreteNew.hs3
1 files changed, 2 insertions, 1 deletions
diff --git a/src/compiler/GF/Compile/Compute/ConcreteNew.hs b/src/compiler/GF/Compile/Compute/ConcreteNew.hs
index f98ed1c90..1b5559808 100644
--- a/src/compiler/GF/Compile/Compute/ConcreteNew.hs
+++ b/src/compiler/GF/Compile/Compute/ConcreteNew.hs
@@ -280,7 +280,8 @@ strsFromValue t = case t of
]
VFV ts -> mapM strsFromValue ts >>= return . concat
VStrs ts -> mapM strsFromValue ts >>= return . concat
- _ -> fail "cannot get Str from value"
+
+ _ -> fail ("cannot get Str from value " ++ show t)
vfv vs = case nub vs of
[v] -> v