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I request the RPC method state through the method provided by the SDK linked above_ GetMetadata, but metadata cannot be resolved. There will be an error (unsupported metadata version: 14). How can I solve it? Preferably Java. Thank you in advance for helping my friends

1 Answer 1


The library that you are using seems to be outdated. For what I have seen there is an open issue for this, I would just suggest you to track it there - https://github.com/emeraldpay/polkaj/issues/88

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