2 
Reading WAST/WASM from ______ wast...
Assembling WASM...
Publishing contract...
Error 3030011: duplicate transaction
You can try embedding eosio nonce action inside your transaction to ensure uniqueness.
Error Details:
Transaction is not unique

It is from help_text.cpp in programs cleos

  1. What is eosio nonce?
  2. How to embed it inside a transaction?
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2
  • 1
    Text should not be pasted as image. Rather, paste it as a code block: then it can be readily copied for searching or other purposes.
    – Gassa
    Commented May 11, 2018 at 11:08
  • Something seems funny about that screenshot. Is this from cleos set contract? If so you'd have to send the same code twice within .5s to get that error.
    – Todd Fleming
    Commented May 11, 2018 at 12:18

1 Answer 1

Reset to default
9

Use the -f option in cleos

This option will instruct cleos to include a nonce action in the transaction you are creating, that will make the tx unique.

-f,--force-unique force the transaction to be unique. this will consume extra bandwidth and remove any protections against accidently issuing the same transaction multiple times

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