Execution reverted for an unknown reason It probably wouldn't by my first choice, having the Reverted prefix on the data property just makes parsing a bit more painful than necessary, but it isn't terrible and cross-client compatibility is always nice. If you want to sell the maximum possible, try 70% or 69% instead of 100%. when I run the following cell in Google Colab: from keras import backend as K if 'tensorflow' == K. You shouldn't specify value since you You signed in with another tab or window. Returned error: VM Exception while processing transaction: revert when i I am new at ethereum development and I am working on a simple script to execute swaps using Pancakeswap. fallback() external payable; receive() external payable; Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Hello friends, I hope you are well, I am trying to execute a contract function, but in each attempt I get [CANCELLED] , specifically the reason seems to be “value transfer did not complete from a contract reverted”, at first everything seems to be going well, the call to the function, then confirm, pending, but in the end it doesn’t go any further and I get this failed Hello, sorry for dividing my response but I just figured there must be something going on with the serviceAgreements structure. On call using Alchemy, I get the following. Everything seems to be working well up to the point where I am building my transaction and Thank you, but I still struggling hard to understand how things are working. 1. It's a kind of deposit bug: usePrepareContractWrite is throwing "ContractFunctionExecutionError: Execution reverted for an unknown reason. Please note that PancakeSwap (or any wallet service) DOES NOT provide support through direct messages. swapTokensForExactETH swaps an unknown amount of Token into exact ETH. Ask Question Asked 6 years ago. I have a problem like this, I deploy new instances of contracts and change the UniswapV2Router02 and UniswapV2Factory. I have been using Infura with rinkeby. 8. Viewed 4k times 1 I am having trouble with a function that calls a function and sends funds of the same contract in another instance: function buyLoan Revert is a new opcode from Byzantium. execution reverted: Insufficient WETH9 #249. There are multiple scams targeting crypto users and you should NEVER, under any circumstances, share your wallet seed phrase or any personal information with anyone online!. For sure that does not work on mainnet (Or even testnet), but on a hardhat forked mainnet it does. Viewed 4k times 2 I am Reason provided by the contract: "ERC20: transfer amount exceeds allowance" 1 "revert ERC20: The transaction cannot succeed due to error: execution reverted: Pancake: TRANSFER_FAILED. I currently have ~1 Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site How do I debug “evm: execution reverted” errors? Jim Zhang Updated January 26, 2023 19:25. Viewed 746 times 1 I am attempting to deploy a smart contract to the Sepolia testnet. Copy link Error: Transaction reverted without a reason string at ~~ what does this message mean? and how can I debug this error? My test environment is hardhat local forking mainnet. @THIAGODEBONIS Awesome. If you wish to broadcast, you must ValueError: Execution reverted during call: 'execution reverted'. You can use a number of tooling options to debug a failed transaction. Viem is very powerfull and can't let this pass. This error represents a transaction that was unable to execute due to an unmet condition Facing this error => MetaMask - RPC Error: execution reverted {code: -32000, message: "execution reverted"} after calling the contract method. 0. So, you're not calling any payable method, as you asked. Ask Question Asked 3 years, 3 months ago. I'm using this function in my GovernorContract. j-5-s opened this issue May 26, 2023 · 5 comments Closed 1 task done. Modified 5 years, 10 months ago. Modified 2 years, 1 month ago. This transaction will likely revert. I use the following HardHat script for this: npx hardhat run --network The errors “This account is not the owner of the NFT” and “This account is not the owner of the NFT or has not approved the NFT for transfer” may occur when trying to purchase an item using OpenSea. The vast majority of transfer functions check user balances before transferring, so I'm assuming your super implementation does that too. https://pancakeswap. sol addresses in Thanks for contributing an answer to Ethereum Stack Exchange! Please be sure to answer the question. Error: cannot estimate gas; transaction may fail I have a local testnet (represented by this Docker image) and I am trying to send some ERC20 tokens from one address to another. Execution reverted usually means there's an issue with the token contract that prevents it from being sent. Make sure you have 30% more tokens in your wallet than you intend to trade, or try to trade a lower amount. I thought this was a problem in the smart contract, but no matter what contract i have deployed in the mainnet, I cannot add liquidity to it Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site I'm trying to swap a pair not having wbnb on pancakeswap. You switched accounts on another tab or window. you call approve on uniswap and uniswap calls transferFrom on your account? @taranchik Unless you know the private key to the tokenHolder address (that you could use to execute the transfer() method directly from their address), they need to approve() the tokens first from their address directly. Could the exception you're getting be thrown because you have to allow Uniswap to pull the loan + fees from your account, i. Viewed 13k times 1 I want to estimate gas cost for a smart contract function. Actually, the "weird number" was the decimal version of the smart contract address (which should be hexadecimal). I'm trying to swap BUSD to USDT using pancake swap on the testnet but whenever I try to swap using swapExactTokensForTokens function, I get "execution reverted" error, can you help me fin 前端在调试调用合约的时候经常会遇到合约revert的情况，大部分区块浏览器只会显示 execution reverted，并不会把具体原因告诉我们。这个时候一般会去找合约大哥帮忙分析错误，但是合约大哥是怎么分析报错的呢？ 这篇文章给你一个解题方法。 直接上代码 Now tried with Alchemy using their web3. swapExactTokensForTokens(amountIn,amountOut,[token1,router. It looks like when buy() runs, it invokes token. This needs to be set when swapping on the pool directly. Works on Goerli. finance "Execution reverted with reason: STF" on Pancakeswap BSC Testnet. Copy link STF is safe transfer failed (). Bug Description I am trying to understand better the uniswap logic for development. Following is returned but no revert reason. Reverts with Cannot assign to read only property 'invocation' of object 'Error: execution reverted (coult not decode custom error) or Error: execution reverted (unknown custom error) Here is a link to verified contract on bsc testnet that you can use to reproduce the issue When you're trying to pay back the loan + fees, you transfer the amount for each asset from your FlashloanSwap to Uniswap. backend(): import tensorflow as tf from keras. If you are running the contracts using unit tests then keep modifying the contracts e. New comments cannot be posted. If you’re not using Trust Wallet, open the PancakeSwap app. Try increasing your slippage tolerance. LonelyNightCoder opened this issue Apr 10, 2022 · 5 comments Labels. Also, you can try checking the gas limit on the tx to see that it's high enough (we recommend up to 200,000 for tokens). Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company reverted with reason string 'ds-math-sub-underflow' 1. As a result, the transaction is reverted. " #590. " Increasing slippage doesn't You're on the right path. Secondly, when you send any amount from a metamask wallet, the contract should have either of these methods, with the logic, in case your contract receives any amount:. If there was an overflow, the transaction would get reverted with the message overflow. For non-standard tokens, it's possible that the transfer fails for weird reasons. ContractFunctionExecutionError: Execution reverted for an unknown reason. The Smart Contract code usually contains checks for various If you have deployed the contracts on the public network, like mainnet or testnet, use https://tenderly. Unlike This article outlines the various types of 'execution reverted' errors and provides troubleshooting guidance for each. Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Execution reverted usually means there is an issue with the token contract that prevents it from working properly. Avoid "out of gas" when calling a view function using truffle. brownie：ValueError: execution reverted: VM Exception while processing transaction: revert. ', code: 'UNPREDICTABLE_GAS_LIMIT', Ask Question Asked 1 year, 9 months ago. Someone please explain. eth_sendTransaction is a JSON-RPC method of the node that you're calling (in your case some of Infura's nodes). Ask Question Asked 1 year, 5 months ago. Closed LonelyNightCoder opened this issue Apr 10, 2022 · 5 comments Closed execution reverted: Insufficient WETH9 #249. This is called via the useEffect hook in the React App. As far as the pair doesn't have wbnb I use swapExactTokensForTokens (meanwhile WBNB -> BUSD with swapExactETHForTokens works well). Your suggestion worked for me. Multichain DEX on BNB Chain, ETH, Aptos, Polygon zkEVM, zkSync Era, Arbitrum, Linea, Base and opBNB. The reverton is either by an accident, for example, when overflow occurs, or intentionally, for example, require() condition is not satisfied. A transaction receipt, on the other hand, will indicate that a transaction failed, but the revert reason itself is not included. 0) On send call using Alchemy the retry exhaustion and all those thrown errors went away. Reload to refresh your session. BigNumber" inputs were compared, and they differed. If I remove require and just leave z = z + x as the compiler Add liquidity failed: Unknown error: "The contract function "addLiquidityETH" reverted with the following reason: PancakeLibrary: INSUFFICIENT_LIQUIDITY". For ex. first of all, you haven't marked the transfer() method with "payable" modifier. Then I created liquidity pool with these tokens. Modified 3 years, 4 months ago. You signed out in another tab or window. Revert reason available. Load 7 more related questions Show fewer related questions Sorted by: Reset to default Know someone who can answer AssertionError: expected 0 to equal 1000000000000000000. I tested my smart contract with hardhat and to check the states I used console. I'm not sure why you're getting the K error, but you should be able to swap to other tokens through eth with router. This format was chosen because it matches what Parity does. Thank you. Identifier not found or not unique. is vague. request which should request MetaMask (or other browser wallet) to sign the transaction. Error: Returned error: execution reverted: ds-math-sub-underflow. Provide details and share your research! But avoid . You signed in with another tab or window. Asking for help, clarification, or responding to other answers. Execution reverted when trying I am facing the error, execution reverted: uniswapv2library: insufficient_input_amount when using swapExactTokensForETHSupportingFeeOnTransferTokens. users have the right to proceed in whatever they like, ensuring the continuation of PancakeSwap. The first step is to choose the tokens that you want to swap. Archived post. log. When calling function from another contract via interface, get transaction reverted. I'm using viem for a back-end project, the errors and 🤯 What is an “Execution Reverted” Error? An execution reverted error is one of possible runtime errors. Mostly your approve tx was not confirmed or not enough balance on the wallet. Thanks for contributing an answer to Ethereum Stack Exchange! Please be sure to answer the question. Now, it doesn't consume all gas, because with this opcode the execution get's reverted and the remaining gas gets returned to the function caller. BUSD -> LUNA. co or EtherScan to debug the revert reason. It seems related to using private key directly with Wallet instance - in combination with ethereum. Decentralized applications (dApps) are transforming the digital landscape by offering users autonomy, security, and transparency. ". Which means, the flow has gone through the JS code, generated Ethereum tx, submit the tx to the node, and now the node refuses it Thanks for contributing an answer to Ethereum Stack Exchange! Please be sure to answer the question. The subsequent TXs I'm trying to do my own token in Solidity and use Web3 to transfer a token from one account to another using NodeJS/ExpressJS. reason: 'execution reverted: Not enough ether to purchase NFTs. I can call Execution reverted is due to contract call failure. I have no idea what I am doing wrong here. 0) for both of my transactions. If you wish to broadcast, include `allow_revert:True` as a transaction parameter. buyTokens() in turn calls transfer(). One of the most common errors To get the reason for the failure, EVM allows a past transaction to be "replayed" and for the internal states to be introspected at each step. bug Something isn't working. However, when calling those functions directly using ftmscan, the transaction succeeds. Uniswap v3: SPL: SPL stands for Square root price limit. When swapping directly on a pool contract the sqrtPriceLimit is used to determine the highest price in the swap. The contract is obviously getting funded due to the reason I mentioned above, so the problem must be that either the _fee value is not getting through to the vrfCoordinator or that there is something wrong with the serviceAgreement Cannot estimate gas on execution. One way to fetch a revert reason is to replay the transaction using the eth_call method. Deploying and interacting with this contract on Remix IDE returns the following error: I would try to check first if your contract deployed successfully and then see if the functions you use work fine too. I minted tokens and I want approve this tokens to PancakeRouter and add liquidity in this pool. BigNumber" and "ethers. . Regarding getting the revert reason in that case (thrown on gas estimation), is it possible? What I get is: "EstimateGasExecutionError: Execution reverted for an unknown reason", while the revert on the contract does have a message. To begin with, open Trust Wallet and navigate to PancakeSwap via the DApp browser. execution reverted: PancakeRouter: INVALID_PATH - When swapping tokens. Locked post. For reference: Using Binance Smart Chain; 0. I'm trying to make a transaction to create an NFT collectible and the transaction gets reverted with the message: Gas estimation failed: 'execution reverted'. Open syaringan357 opened this issue Dec 31, 2021 · 14 comments Open Calling exactInputSingle returns execution reverted: STF #315. Yes you are correct, The [execution reverted] error indicates a transaction that couldn't be executed due to unmet conditions in the underlying smart contract. My transaction failed with an [execution reverted] error Tour Start here for a quick overview of the site Help Center Detailed answers to any questions you might have Meta Discuss the workings and policies of this site Thanks for contributing an answer to Ethereum Stack Exchange! Please be sure to answer the question. I used MetaMask's Google Chrome extension (version 9. 6. What is the contract address, chain, and that failed transaction (hash)? If this is your contract, check the buyItem function to see if there’s something obvious making it revert If the transaction is reverted with TransactionExecutionError: Execution reverted for an unknown reason error, I cannot execute any transaction anymore. Example: I've been tring to code a bot to run on pancakeSwap and for some reason, all the transactions I try with this script keep getting reverted. I think the ABI encoding of the revert reason is done I'm trying to call a function[propose] from Openzeppelin governor. Now, I am moving to 0. ValueError: Gas estimation failed: 'execution reverted: STF'. The tokenAmount Your session crashed for an unknown reason. on adding new prduct smart contract. Share Gas Estimation Execution Reverted (ERC20: transfer amount exceeds allowance) Ask Question Asked 3 years, 4 months ago. Caused by the design of Restorative Rebase tokens like tDoge or tBTC. Usual way is to chose just one approach - sign with Another reason why Pancakeswap is good is that its failure is minimal. swap using swapExactTokensForTokens but execution reverted. I suggest returning more details, similar to ethers's approach. "Unknown error: "Execution reverted with reason: STF. sol like this function propose( address[] memory targets, uint256[] memory values, bytes[] memory calldatas, string It says that: Unknown Error: execution reverted with reason STF: try increasing your slippage tolerance, mind you I’ve done it up to 49% and still won’t go thought. Modified 1 year, 9 months ago. reverted with reason string 'ds-math-sub-underflow' 0. Closed 1 task done. Or if you meant to get the BNB balance (not the token balance) of the contract address, you can use the web3 getBalance() method. Execution reverted: ERC20: transfer amount exceeds allowance. Calling exactInputSingle returns execution reverted: STF #315. Initially, I used MetaMask's "slow" option for gas price and MetaMask's default value for gas limit (~30,000). :) The VoidSigner is a different issue, related to your JS code, not to the Solidity code. When an execution throws, before Byzantium, all gas was consumed and the contract remained in the previous state (it rolled back). Pancake swap transactions take about 5 to 10 Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Please note that PancakeSwap (or any wallet service) DOES NOT provide support through direct messages. The numerical values of the given "ethers. WETH(),token2],receiver,deadline) The same response would be returned if eth_call was used. Comments. Not sure what you used to deploy it, but in Remix for example you can use the web interface to test your functions and there's a nice dubug feature as well. New comments cannot be posted and votes cannot be cast. e. Execution reverted errors occur when a called Smart Contract decides to prevent further execution of a transaction that goes against its business logic. Consider whether you have an old version of the token (if it has undergone contract changes/swaps in the past) so the contract could be outdated, brownie：ValueError: execution reverted: VM Exception while processing transaction: revert 1 Transaction reverts when I run a contract function on mainnet-fork-dev But when i don't provide this field, i get the following error: Error: Returned error: execution reverted: PancakeRouter: EXCESSIVE_INPUT_AMOUNT, same goes if i put 0 in value. If I use the same code, my test cases fail, because they don't get overflow revert message anymore. What is an EVM execution reverted error in Ethereum? An EVM execution reverted error occurs when a transaction or smart contract operation violates the rules or logic set in the contract, prompting the Ethereum Virtual It's possible that you're either accessing an incorrect contract (e. Essentially, the Ethereum Virtual EstimateGasExecutionError: Execution reverted for an unknown reason. tensorflow_backend Stack Overflow for Teams Where developers & technologists share private knowledge with coworkers; Advertising & Talent Reach devs & technologists worldwide about your product, service or employer brand; OverflowAI GenAI features for Teams; OverflowAPI Train & fine-tune LLMs; Labs The future of collective knowledge sharing; About the company Hello! Help me please. Keep yourself safe: Never click on any unverified links. Once the fetch button is To get the reason for the failure, EVM allows a past transaction to be "replayed" and for the internal states to be introspected at each step. If you wish to broadcast, you must set the gas limit manually. Preparing transaction call and trying to estimate gas beforehand, but it fails with I have tried swapExactTokensForETH(), or swap RFI to other tokens, it also failed with "execution reverted: UniswapV2: K", since the pool is only RFI -- ETH. backend. There's currently no other known way to spend tokens belonging to an other address without their key/approval. syaringan357 opened this issue Dec 31, 2021 · 14 comments Comments. sol. on a different network or under a different address) or using an ABI that doesn't correspond with the function invoked from the JS code. Ok I solved it. If you could prove me with the code, it will be very helpful and quite instant to understand. buyTokens(). Expectation is that same Here is the code I've wrote: Swap Token Gist Here's one of the TxId with the revert: BSC Scan Tx Id And here is a screenshot with the revert message: Why is the contract reverting if there are res From here, the most likely possibility is that you meant to deploy a different contract (that contains the balanceOf() function) but mistakenly deployed this one instead. g. The hexadecimal to decimal conversion happened in the YAML file where I pass the environment variables because the value was a number and not a string. js wrapper, @alch/alchemy-web3 (internally their package seem to have web3 version 1. by removing lines to see when it starts failing. I have just created own tokens on bsc testnet via PancakeFactory. shnuqme mtn zajxo nrclij pesod enrmj zwbise twwvh dqeoz obfkbrwc