# Failed updating to 1.4.9 and Tidal doesn't run anymore **URL:** \ **Category:** TidalCycles\ **Tags:** installation\ **Created:** [26 April 2020 10:33 UTC](https://uzu.lurk.org/t/failed-updating-to-1-4-9-and-tidal-doesnt-run-anymore/497 "2020-04-26T10:33:04Z")\ **Posts on this page:** 5\ **Page:** 1
**Author:** ![ganz](https://uzu.lurk.org/user_avatar/uzu.lurk.org/ganz/32/64_2.png) [@ganz](https://uzu.lurk.org/u/ganz)\ **Post date:** [26 April 2020 10:33 UTC](https://uzu.lurk.org/t/failed-updating-to-1-4-9-and-tidal-doesnt-run-anymore/497/1 "2020-04-26T10:33:04Z")
Hello Alex, since my unsuccessful try to update to 1.4.9 Tidal Cycles doesn't run anymore. Atom reports: Custom ghci path configured: ~/.ghcup/bin/ghci Ghci command: /Users/Axel/.ghcup/bin/ghci Ghc-pkg command: /Users/Axel/.ghcup/bin/ghc-pkg Load BootTidal.hs from /Users/Axel/.atom/packages/tidalcycles/lib/BootTidal.hs Loaded package environment from /Users/Axel/.ghc/x86\_64-darwin-8.6.5/environments/default : error: Ambiguous module name ‘Sound.Tidal.Context’: it was found in multiple packages: tidal-1.4.7 tidal-1.4.7 Variable not in scope: d1 :: t0 -\> t ``` • Variable not in scope: sound :: [Char] -> t0 • Perhaps you meant ‘round’ (imported from Prelude) ``` Variable not in scope: d1 :: t0 -\> t ``` • Variable not in scope: sound :: [Char] -> t0 • Perhaps you meant ‘round’ (imported from Prelude) ``` * * * Maybe my problem is similar to the one [montoyamoraga] had. Should I delete /Users/Axel/.ghc/x86\_64-darwin-8.6.5/environments/default ? And if yes, how? ([Profile - montoyamoraga - Uzu](https://club.tidalcycles.org/u/montoyamoraga)) [Mac OSX - new install / cannot start tidal on Mac OSX catalina - TidalCycles - Uzu](https://club.tidalcycles.org/t/mac-osx-new-install-cannot-start-tidal-on-mac-osx-catalina/192) ---
**Author:** ![yaxu](https://uzu.lurk.org/user_avatar/uzu.lurk.org/yaxu/32/2_2.png) [@yaxu](https://uzu.lurk.org/u/yaxu)\ **Post date:** [26 April 2020 12:39 UTC](https://uzu.lurk.org/t/failed-updating-to-1-4-9-and-tidal-doesnt-run-anymore/497/2 "2020-04-26T12:39:06Z")
Yes this is an often seen bug in haskell/cabal. You should indeed delete that package environment file. You can do it from a terminal window with: ```nohighlight rm /Users/Axel/.ghc/x86_64-darwin-8.6.5/environments/default ``` ---
**Author:** ![ganz](https://uzu.lurk.org/user_avatar/uzu.lurk.org/ganz/32/64_2.png) [@ganz](https://uzu.lurk.org/u/ganz)\ **Post date:** [29 April 2020 07:44 UTC](https://uzu.lurk.org/t/failed-updating-to-1-4-9-and-tidal-doesnt-run-anymore/497/3 "2020-04-29T07:44:36Z")
I tried to do so at Terminal. But it seems that Tidal still does not work. ![Bildschirmfoto 2020-04-29 um 11.41.09](https://club.tidalcycles.org/uploads/default/original/1X/fcb5a3e028cb7530f359289b3e5a8df817225bda.png) ---
**Author:** ![ganz](https://uzu.lurk.org/user_avatar/uzu.lurk.org/ganz/32/64_2.png) [@ganz](https://uzu.lurk.org/u/ganz)\ **Post date:** [29 April 2020 07:51 UTC](https://uzu.lurk.org/t/failed-updating-to-1-4-9-and-tidal-doesnt-run-anymore/497/4 "2020-04-29T07:51:41Z")
To be shure to have deleted I repeated the instruction. ```haskell ![Bildschirmfoto 2020-04-29 um 11.46.30|690x222](upload://pXxq2YqmQh9WOJ2OcXW4Abx3vnD.png) Do I have to delete all and install TC completely new? ``` ---
**Author:** ![ganz](https://uzu.lurk.org/user_avatar/uzu.lurk.org/ganz/32/64_2.png) [@ganz](https://uzu.lurk.org/u/ganz)\ **Post date:** [29 April 2020 08:14 UTC](https://uzu.lurk.org/t/failed-updating-to-1-4-9-and-tidal-doesnt-run-anymore/497/5 "2020-04-29T08:14:15Z")
@yaxu: Ok. Now I got it. Obviously in some way i deleted to much. Installed TC 1.4.9 new again. And it works! 😉 ![Bildschirmfoto 2020-04-29 um 12.11.50](https://club.tidalcycles.org/uploads/default/original/1X/456bb24f792e2aac7943c49a76080c63e2822478.png)