Troubleshooting a Tidal install
If you've gone through the Tidal installation instructions, but can't get it working, here's some steps to locate what the problem is (or problems are).
Open a terminal window, and type:
You should see something like this
GHCi, version 8.6.3: http://www.haskell.org/ghc/ :? for help Prelude>
If you don't see something like the above, you probably need to install Haskell. You might well see a different version number, don't worry. At the time of writing, Tidal is tested against versions right back to 7.10.3.
Keeping that ghci window open, type (or paste in):
You should now see something like:
GHCi, version 8.6.3: http://www.haskell.org/ghc/ :? for help Prelude> import Sound.Tidal.Context Prelude Sound.Tidal.Context>
If you instead see an error message like:
<no location info>: error: Could not find module ‘Sound.Tidal.Context’
This means that the tidal library isn't installed. To install it, open a new terminal window and type:
cabal update; cabal install tidal
If you see an error message (ignoring warnings about 'legacy v1 style' commands), then make sure you have installed the 'full' haskell platform and try again. If it still doesn't work, please make a note of the error message and ask the Community for help.
SuperCollider / SuperDirt
Start SuperCollider, and paste the following in:
With your cursor on the same line, run it with shift-enter.
You should see messages about lots of sample banks being loaded and eventually:
SuperDirt: listening to Tidal on port 57120
If you instead see an error message, read on..
ERROR: Class not defined.
If you see the error
ERROR: Class not defined.
This means SuperDirt isn't installed. Install it by running
If it fails to install, make sure you have the `git` command installed. You can do this by running `git --version` from a command prompt. If the command isn't found, then check the install page for how to install git. Once it's installed, you'll need to restart supercollider before trying again.
Could not bind to requested port
If you see an error like:
Could not bind to requested port. This may mean it is in use already by another application. ERROR: Could not open UDP port 57120
This probably means you have stray supercollider processes running, blocking network ports. Shut down supercollider, and force quit `sclang` and `scserver` in your task manager. Failing that, a reboot will clear them.
Often the problem is with installing the tidal haskell library. When this comes up with errors, you know that's (part of) your installation problem.
cabal update cabal install tidal
If some cabal packages fail to compile for no clear reason, this can help:
sudo ghc-pkg recache cabal update; cabal install tidal
Often, installing the full (rather than core) version of the Haskell platform will clear up your problems. Get it from here: https://www.haskell.org/platform/
If everything seems to be working, but not all sounds play, then probably there was a problem causing the download of Tidal's extensive library of 'default' sounds to fail part way through.
You can fix this by finding the `Dirt-Samples` folder, via the supercollider menus: Open user support directory > downloaded-quarks > Dirt-Samples. You'll probably find that many of the folders are missing or empty. You can download all the samples from here:
... and then copy them over the existing Dirt-Samples folder.
Installing via 'stack' rather than 'cabal'
If the tidal Haskell library has stubborn problems when installed with cabal, particularly if it brings up errors related to the 'network' library under library, then instead installing with `stack` solves it.
This is done with the following command in a terminal window:
stack install tidal
Once that's done, you just have to tell the atom plugin to use the tidal installed with stack. In atom, find the settings for the tidalcycles package, and set the `ghci path` setting to `stack ghci`. Then, restart atom and all should be well.