use ++ instead of <> to fix the build

2021-05-20 16:00:55 +02:00 · 2021-05-20 16:00:55 +02:00 · 884d937792
commit 884d937792
parent 59ef730317
1 changed files with 1 additions and 1 deletions
--- a/yesod-core/src/Yesod/Core/Class/Breadcrumbs.hs
+++ b/yesod-core/src/Yesod/Core/Class/Breadcrumbs.hs
@ -31,6 +31,6 @@ breadcrumbs = do
        (title, next) <- breadcrumb this
        if this `elem` map fst back
        then
-          error $ "yesod-core: infinite recursion in breadcrumbs at " <> show title
+          error $ "yesod-core: infinite recursion in breadcrumbs at " ++ show title
        else
          go ((this, title) : back) next