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Ethereum: Unable to verify and publish my OpenZepplin-based contract from Remix on Etherscan.io
I have been trying to get my OpenZepplin-based contract working on Remix, but I am having trouble verifying and publishing to Etherscan.io. Following this tutorial on creating a token and deploying the contract, I have run into a few issues that need to be resolved.
Problem: Master contract issues
When I try to access my contract through Remix, I get an error message that the master contract is not properly deployed. Specifically, I see this error:
Error: Error 0x8d6f24e7b5a1c2cd0979eb4b3f7ac3dc5b76bb5f94af35ad6bfc4bfecf74c45
I have checked my contract code and deployed it correctly, but I don’t know why Remix is reporting these issues.
Possible Causes and Solutions
Here are some possible causes and solutions that could help or slow down your progress:
- Incorrect master contract deployment: Make sure you have deployed your master contract to the correct address on the Ethereum network.
- Missing OpenZepplin configuration file: Make sure you have created an
openzepplin.tomlfile in the same directory as your contract source code and that it contains the configuration settings needed to use Remix.
- Remix misconfiguration
: Verify that Remix is configured correctly on your local machine by checking its settings in the “Settings” menu.
Step-by-step solution
To resolve this issue, we recommend that you follow these steps:
- Verify master contract deployment: Verify that you have deployed the master contract to the correct address and that it is listed as a deployable contract on Remix.
- Check the OpenZepplin configuration file
: Create a file
openzepplin.tomlin the same directory as your contract source code and ensure that its contents are correct.
- Check the Remix configuration: Verify that Remix is configured correctly on your local machine by checking its settings in the “Settings” menu.
Published on Etherscan.io
If you are still having issues after eliminating these potential causes, here are a few more steps you can take:
- Publish your contract as deployable: Make sure you publish your contract as deployable on Remix.
- Check contract listings on Etherscan.io: Verify that your contract is listed correctly on Etherscan.io and that the correct information is displayed in the “Contract” tab.
Following these steps should resolve any issues related to deploying and verifying your OpenZepplin-based contract on Remix. Good luck!