ghc: panic! (the 'impossible' happened) (GHC version 8.4.3 for x86_64-apple-darwin): Loading temp shared object failed: dlopen(/var/folders/vj/cm0c8jrs739_t411zdcx72240000gp/T/ghc24522_0/libghc_9.dylib, 5): Symbol not found: _DataziCsvUtils_rowBy_closure Referenced from: /var/folders/vj/cm0c8jrs739_t411zdcx72240000gp/T/ghc24522_0/libghc_9.dylib Expected in: flat namespace in /var/folders/vj/cm0c8jrs739_t411zdcx72240000gp/T/ghc24522_0/libghc_9.dylibPlease report this as a GHC bug: http://www.haskell.org/ghc/reportabug