Cannot estimate gas; transaction may fail or may require manual gas limit

Moralis General
#1

Hi guys, Iā€™m having problems transferring a BEP20 token on the BSC network to another wallet.

Below is the error and the code Iā€™m using >:

code :


//const Moralis = require("moralis/node");

import Moralis from "moralis/node";

const serverUrl = "https://MYSERVERURL.usemoralis.com:2053/server";
const appId = "MY APP ID";
const moralisSecret = "MY SECRET MORALIS";

const web3API = async () => {
  await Moralis.start({ serverUrl, appId, moralisSecret });

  await Moralis.enableWeb3({
    //BSC mainnet
    chainId: 0x38,
    privateKey: "MY WALLET PRIVATE KEY",
  });

  const options: Moralis.TransferOptions = {
    type: "erc20",
    amount: Moralis.Units.Token("2", 18),
    receiver: "0x9S9DAS9DUAS8DH8ASHD8AH8........",
    contractAddress: "0xA0758218A5A7D5374D2D66EF9b0FDfCD267F49Fa" // this is the token present in my wallet, which I want to transfer to another wallet
  };

  await Moralis.transfer(options).then((result) => {
    console.log(result);
  });

};

web3API();

error log >

PS D:\MyPC\Documents\DevTools\NodeJs-Projects> ts-node trans.ts
D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\logger\src.ts\index.ts:261
        const error: any = new Error(message);
                           ^
<ref *1> Error: cannot estimate gas; transaction may fail or may require manual gas limit [ See: https://links.ethers.org/v5-errors-UNPREDICTABLE_GAS_LIMIT ] (error={"reason":"cannot estimate gas; transaction may fail or may require manual gas limit","code":"UNPREDICTABLE_GAS_LIMIT","error":{},"method":"estimateGas","transaction":{"from":"MY WALLET ","gasPrice":{"type":"BigNumber","hex":"0x012a05f200"},"to":"0xA0758218A5A7D5374D2D66EF9b0FDfCD267F49Fa","data":"0xa9059cbb00000000000000000000000093c93fad5ef766b6051e8658a65783345793c5400000000000000000000000000000000000000000000000001bc16d674ec80000","accessList":null}}, tx={"data":"0xa9059cbb00000000000000000000000093c93fad5ef766b6051e8658a65783345793c5400000000000000000000000000000000000000000000000001bc16d674ec80000","to":{},"from":"MY WALLET ","gasPrice":{"type":"BigNumber","hex":"0x012a05f200"},"type":0,"nonce":{},"gasLimit":{},"chainId":{}}, code=UNPREDICTABLE_GAS_LIMIT, version=abstract-signer/5.6.0)
    at Logger.makeError (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\logger\src.ts\index.ts:261:28)
    at Logger.throwError (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\logger\src.ts\index.ts:273:20)
    at D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\abstract-signer\src.ts\index.ts:301:31
    at processTicksAndRejections (node:internal/process/task_queues:95:5)
    at async Promise.all (index 6) {
  reason: 'cannot estimate gas; transaction may fail or may require manual gas limit',
  code: 'UNPREDICTABLE_GAS_LIMIT',
  error: Error: cannot estimate gas; transaction may fail or may require manual gas limit [ See: https://links.ethers.org/v5-errors-UNPREDICTABLE_GAS_LIMIT ] (error={}, method="estimateGas", transaction={"from":"MY WALLET ","gasPrice":{"type":"BigNumber","hex":"0x012a05f200"},"to":"0xA0758218A5A7D5374D2D66EF9b0FDfCD267F49Fa","data":"0xa9059cbb00000000000000000000000093c93fad5ef766b6051e8658a65783345793c5400000000000000000000000000000000000000000000000001bc16d674ec80000","accessList":null}, code=UNPREDICTABLE_GAS_LIMIT, version=providers/5.6.0)
      at Logger.makeError (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\logger\src.ts\index.ts:261:28)
      at Logger.throwError (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\logger\src.ts\index.ts:273:20)
      at checkError (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\providers\src.ts\json-rpc-provider.ts:80:16)
      at Web3Provider.<anonymous> (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\providers\src.ts\json-rpc-provider.ts:562:20)
      at step (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\providers\lib\json-rpc-provider.js:48:23)
      at Object.throw (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\providers\lib\json-rpc-provider.js:29:53)
      at rejected (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\@ethersproject\providers\lib\json-rpc-provider.js:21:65)
      at processTicksAndRejections (node:internal/process/task_queues:95:5) {
    reason: 'cannot estimate gas; transaction may fail or may require manual gas limit',
    code: 'UNPREDICTABLE_GAS_LIMIT',
    error: Error: Failed to make "eth_estimateGas" request with networkConnector: "gas required exceeds allowance (0)"
        at MiniRpcProvider.request (D:\MyPC\Documents\DevTools\NodeJs-Projects\node_modules\moralis\lib\node\Web3Connector\NetworkWeb3Connector.js:85:15)
        at processTicksAndRejections (node:internal/process/task_queues:95:5),
    method: 'estimateGas',
    transaction: {
      from: 'MY WALLET ',
      gasPrice: [BigNumber],
      to: '0xA0758218A5A7D5374D2D66EF9b0FDfCD267F49Fa',
      data: '0xa9059cbb00000000000000000000000093c93fad5ef766b6051e8658a65783345793c5400000000000000000000000000000000000000000000000001bc16d674ec80000',      
      accessList: null
    }
  },
  tx: {
    data: '0xa9059cbb00000000000000000000000093c93fad5ef766b6051e8658a65783345793c5400000000000000000000000000000000000000000000000001bc16d674ec80000',        
    to: Promise { '0xA0758218A5A7D5374D2D66EF9b0FDfCD267F49Fa' },
    from: 'MY WALLET ',
    gasPrice: BigNumber { _hex: '0x012a05f200', _isBigNumber: true },
    type: 0,
    nonce: Promise { 0 },
    gasLimit: Promise { <rejected> [Circular *1] },
    chainId: Promise { 56 }
  }
}

What do I need to do to fix this??

1 Like
#2

Have you found a solution? I got the same problem!

#3

Make sure you are calling the function on same network where contract is deployed.
Check this docs for reference: https://docs.moralis.io/moralis-dapp/connect-the-sdk/connect-using-node#moralis.transfer

1 Like
#4

you could get that error when the transaction will fail, you need to have native currency in the wallet that makes the transaction

1 Like