Error while running npx @substrate/playground-cli

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  • I don't think the error is from that part of the code since your not trying to read the dots properties. My guess would be that the error is inside your spinner component where your trying to read that property. Commented Nov 10, 2021 at 13:36
  • Since cli is outdated, it won't work they said. Thank you for your time Commented Nov 11, 2021 at 14:58

1 Answer 1


Since CLI is outdated, this version doesn't work anymore. The web version serves the same goal and should be more convenient.

Go to docs.substrate.io/playground/, choose a template and click 'Launch Playground'

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