error: • No instance for (Ragged DI Ix1 Double) arising from a use of ‘empty’

[lehins]

error: • No instance for (Ragged DI Ix1 Double) arising from a use of ‘empty’

[lehins]

Are you sure you are using massiv-0.3.0.1? From the errors I can deduce 100% that this is massiv-0.2.x. I've added doctests in version massiv-0.3, so I know examples work, but here is how I know it's not the latest version:

• singleton function used to take 2 arguments, where now it takes only one argument.
• DL type was introduced in 0.3.0.0
• empty was a different function in 0.2 and was renamed to emptyRagged and made internal. Ragged interface isn't quite ready for usage and was exported unintentionally.

Feel free to reopen it if you still think there is a problem with the library

Edit In case if you have questions, feel free to ask them on https://gitter.im/haskell-massiv/Lobby

[xxAVOGADROxx]

Thank you very much for your answer indeed the version of the package was outdated