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I was working on this repository to breed NFTs on Solana. However, I encountered an error while attempting to mint a new generation. The first two test cases, "Initialize" and "Compute," have passed successfully. The new generation has been generated during the "Compute" phase, as indicated by the transaction showing "generation: true" from 0 to 1. However, during the minting process, I encountered the following error:

"Do you happen to know what the problem is? Has anyone else faced a similar issue?"

repo link: https://github.com/DappioLab/nft-breeding

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  • what was the error!
    – Jimii
    Sep 4, 2023 at 9:28
  • @Jimii Error: failed to send transaction: Transaction simulation failed: Attempt to load a program that does not exist
    – Maidi
    Sep 4, 2023 at 10:14

1 Answer 1

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It looks like it's attempting to use program ID NFTBfAcFhBb8yqNvYiN8RPQfr5KrVuHGK7pj61EiVnZ, which when searched does not appear as a valid program address on Mainnet and Devnet. If it's any different, let me know. But from the repo link, the program appears to be attempting to use that program ID which does not exist.

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  • I deploy the contract, change the programID, and run the test cases then, it shows this error. @hunter
    – Maidi
    Sep 11, 2023 at 9:07
  • @UmaidKhalid are you changing the program ID here for NFT_BREEDING_PROGRAM_ID as well? github.com/DappioLab/nft-breeding/blob/…
    – hunter
    Sep 12, 2023 at 0:58
  • Yes, I was changes in 3 files., Anchor.toml, lib.rs and ids file. But issues still faced. @hunt actually 2 test cases run as well as generation has been create but issue come on before minting the nft.
    – Maidi
    Sep 12, 2023 at 10:06

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