Lỗi Sui Move - Không thể xử lý giao dịch Không tìm thấy đồng xu gas hợp lệ cho giao dịch

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Khi tôi làm điều này:

//Chia thanh toán từ đồng tiền chính const [PaymentCoin] = TX.SplitCoins ( tx.object (primarycoin.coinObjectID), [tx.pure.u64 (Mức thanh toán bắt buộc)] );

//Sử dụng đồng tiền gốc để thanh toán gas tx.setGasPayment ([{ ObjectID: primarycoin.coinObjectID, phiên bản: PrimaryCoin.version, bản tóm tắt: PrimaryCoin.Digest }]);

tx.setgasBudget (10_000_000); Nó phàn nàn về các đối tượng có thể đột biến không thể xuất hiện nhiều hơn một trong một giao dịch. Khi tôi xóa thanh toán gas, nó phàn nàn “Không thể xử lý giao dịch Không tìm thấy đồng xu gas hợp lệ cho giao dịch.”. Chức năng hợp đồng của tôi chấp nhận .01 sui để đổi lấy NFT

MiniBob · Answer

This happens because youre trying to use the same coin object (primaryCoin) both as gas payment and as input to splitCoins, which makes it a mutable reference used in two different contexts — and Sui doesnt allow that for safety and linear logic (since coins are linear objects). The way IMHO is to not manually set gas payment at all. Just let the Sui wallet/client automatically select an appropriate gas coin. Only use setGasPayment if you really need to specify which coin pays for gas (e.g., multi-coin wallets, specific gas management). Otherwise, avoid it. Try the following: // Split the primary coin to get a payment coin const [paymentCoin] = tx.splitCoins( tx.object(primaryCoin.coinObjectId), [tx.pure.u64(requiredPaymentAmount)] ); // Do your call that sends .01 SUI and gets an NFT tx.moveCall({ target: ${packageId}::your_module::buy_nft, arguments: [ paymentCoin, // other args... ], }); // DO NOT set gas payment manually // tx.setGasPayment(...) ← Remove this line // Optional: set budget tx.setGasBudget(10_000_000); // Send the transaction const result = await signer.signAndExecuteTransactionBlock({ transactionBlock: tx, options: { showEffects: true }, }); Sui will: Automatically choose a gas coin (could be the same one or another SUI coin in the wallet). Handle the splitCoins safely. Use a different coin (or sometimes the same one, but handled safely under the hood via proper object versioning). Important: As long as your wallet has at least 1 $SUI that can cover gas, this will work.

0xduckmove · Answer

You are running into a common Sui Move transaction design constraint the same coin object cannot be used both as a mutable input (e.g., for splitting or transferring) and as the gas coin in a single transaction. Why this happens When you use tx.splitCoins(tx.object(primaryCoin.coinObjectId), ...), you are marking primaryCoin as a mutable input. When you also set it as the gas coin with tx.setGasPayment(...), Sui sees the same object being used in two roles, which is not allowed. If you remove the gas payment, Sui cannot find a valid gas coin, hence the No valid gas coins found for the transaction error. From context: Transaction Effects Status: Invalid usage of value. Mutably borrowed values require unique usage. Immutably borrowed values cannot be taken or borrowed mutably. Taken values cannot be used again. (source) How to fix You must use a different coin for gas than the one you are splitting or transferring. The Solution: Have at least two SUI coins in your wallet. Use one for the payment (splitting/transferring), and a different one for gas. Example Flow Select two coins: primaryCoin (for payment) gasCoin (for gas) Split and pay with primaryCoin: const [paymentCoin] = tx.splitCoins( tx.object(primaryCoin.coinObjectId), [tx.pure.u64(requiredPaymentAmount)] ); Set gas payment with gasCoin: tx.setGasPayment([{ objectId: gasCoin.coinObjectId, version: gasCoin.version, digest: gasCoin.digest }]); tx.setGasBudget(10_000_000); Do not use the same coin object for both payment and gas. My Reference Sui Move: Invalid taking of the Gas coin. It can only be used by-value with TransferObjects

Owen · Answer

The error occurs because youre trying to use the original primaryCoin object (which is consumed during the splitCoins operation) as gas payment. After splitting, the original coins version/digest becomes invalid, causing the mutatable objects cannot appear more than one error when referenced again. To fix do not manually set gas payment using the pre-split primaryCoin object. And nsure your primaryCoin has sufficient balance to cover both: The payment amount (requiredPaymentAmount = 0.01 SUI) The gas budget (10_000_000 = 0.01 SUI) → Total needed: ≥ 0.02 SUI Just try // Split payment from primary coin (leaves remaining balance in primaryCoin) const [paymentCoin] = tx.splitCoins( tx.object(primaryCoin.coinObjectId), [tx.pure.u64(requiredPaymentAmount)] ); // DO NOT setGasPayment manually - SDK auto-uses updated primaryCoin for gas tx.setGasBudget(10_000_000); // Gas paid from primaryCoins remaining balance `

Paul · Answer

Issues Youre encountering two main issues: Mutability Error: Attempting to use the same coin object for both gas payment and transaction input leads to the error: Mutable objects cannot appear more than once in one transaction. Missing Gas Coin: Without a valid gas coin, the error Unable to process transaction: No valid gas coins found for the transaction occurs. Solution To resolve these issues: Split the Primary Coin for Payment: Use tx.splitCoins to create a new coin for the NFT purchase, ensuring its separate from the gas payment. Set a Separate Gas Coin: Assign a different coin for gas payment using tx.setGasPayment. Define Gas Budget: Set an appropriate gas budget using tx.setGasBudget. Code // Step 1: Split the primary coin for payment const [paymentCoin] = tx.splitCoins( tx.object(primaryCoin.coinObjectId), [tx.pure.u64(requiredPaymentAmount)] ); // Step 2: Set a separate gas payment coin const gasCoin = tx.object(gasCoinObjectId); tx.setGasPayment([{ objectId: gasCoin.coinObjectId, version: gasCoin.version, digest: gasCoin.digest }]); // Step 3: Set the gas budget for the transaction tx.setGasBudget(10_000_000);

casey · Answer

On Sui, a single coin object is mutable (its balance changes when you use it), and you cannot reference the same mutable object twice in one transaction — that’s why: You’re splitting from the same primaryCoin And also using it as gas payment → The transaction builder flags this as mutable object appears more than once. Why No valid gas coins found happens when you remove setGasPayment When you don’t specify a gas coin, the Sui SDK automatically picks a gas coin from your owned coins that isn’t used in the transaction yet. But since your transaction is already consuming the only coin you have (via splitCoins), there’s no extra coin left to pay gas. How to fix it: You need two distinct coin objects: Coin A → used for gas only Coin B → split for your .01 SUI payment If you only have one coin in your wallet, you must first split it into two separate coin objects in a preliminary transaction. The key is: Sui prevents a single coin object from being both gas and a mutable input in the same transaction because it’s treated as the same mutable reference. But in Move, you can receive a coin for payment without caring which object it came from — including one that was split from the gas coin earlier in the same transaction. That means your Move function should accept only the payment coin, not the original coin, and you let the transaction builder handle splitting it before passing it in. move module my_package::nft_market { use sui::coin::{Self, Coin}; use sui::sui::{SUI}; use sui::object::{UID}; use sui::transfer; use sui::tx_context::{Self, TxContext}; /// Simple function: take 0.01 SUI and give NFT public entry fun buy_nft( payment: Coin, // User provides exactly 0.01 SUI ctx: &mut TxContext ) { let amount = coin::value(&payment); let price = 10_000_000; // 0.01 SUI in MIST (1 SUI = 1_000_000_000 MIST) assert!(amount == price, 0); // Transfer the payment to the seller (hardcoded example) transfer::transfer(payment, tx_context::sender(ctx)); // Mint NFT for buyer let nft = NFT { id: object::new(ctx), name: bSpecial NFT.to_vec(), }; transfer::transfer(nft, tx_context::sender(ctx)); } struct NFT has key, store { id: UID, name: vector, } } How this fixes the issue When the client builds the transaction: 1. Gas coin (tx.gas) is automatically used for gas. 2. Split from gas to get a new paymentCoin: js const [paymentCoin] = tx.splitCoins( tx.gas, // mutable reference to gas coin [tx.pure.u64(requiredPaymentAmount)] ); tx.moveCall({ target: ${packageId}::nft_market::buy_nft, arguments: [paymentCoin], }); tx.setGasBudget(10_000_000); 3. Sui allows this because: tx.gas is the gas payment object. The split output (paymentCoin) is a new object. They are now distinct mutable objects in the transaction. ✅ Benefit: You no longer need the wallet to hold two separate coin objects beforehand — the Move function only cares about the payment coin, and the client can always split it from the gas coin before calling.

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Lỗi Sui Move - Không thể xử lý giao dịch Không tìm thấy đồng xu gas hợp lệ cho giao dịch

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