I encountered the following error while simulating a network when running the command:

./target/release/node-template purge-chain --base-path /tmp/alice --chain local

i got error indicating /tmp/alice/chains/local_testnet/db/full did not exist.


1 Answer 1


The purge-chain command is trying to remove the folder /tmp/alice/chains/local_testnet/db/full by default, and you don't have anything there. You can explore where are you keeping this data cd tmp && ls

When you have it you can indicate the path in the flag --base-path or delete the folder manually rm -r path

In case you are running the node with the flag --tmp it uses temporary storage and deletes the folder when you stop the chain, which means when you manually go to purge the data, the data has been already deleted.

--tmp: Use temporary storage for chain data (the chain state is deleted on exit)

The --dev flag also set the --tmp flag

          Specify the development chain. This flag sets `--chain=dev`, `--force-authoring`, `--rpc-cors=all`, `--alice`, and `--tmp` flags, unless explicitly overridden
  • I checked but the folder is not existing
    – Preethi M
    Commented Jul 18, 2023 at 8:57
  • How do you run the node-template?
    – Alex Bean
    Commented Jul 18, 2023 at 8:58
  • By this ./target/release/node-template --dev --tmp --ws-external --rpc-external
    – Preethi M
    Commented Jul 18, 2023 at 9:06
  • Because you are using --dev and --tmp is automatically deleting the chain data when stop the node
    – Alex Bean
    Commented Jul 18, 2023 at 9:32
  • I edited the answer with more information
    – Alex Bean
    Commented Jul 18, 2023 at 9:35

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