Transaction was not mined within 750 seconds, please make sure your transaction was properly sent. Be aware that it might still be mined!

I got an error when using web3js to call the smart contract method transferFrom:

“Transaction was not mined within 750 seconds, please make sure your transaction was properly sent. Be aware that it might still be mined!”
net: https://ropsten.infura.io/v3/21a58c52b*********************080
my code:

async transferFrom(fromAddress, toAddress, amount) {
    let nonce = await this.w3.eth.getTransactionCount(fromAddress)
    let gasPrice = await this.w3.eth.getGasPrice()
    let contract = await this.useConstract()
    let rawTx = {
      from: fromAddress,
      to: this.contractInfo.contractAddress,
      value: this.w3.utils.toHex(this.w3.utils.toWei('0', 'ether')),
      nonce: this.w3.utils.toHex(nonce++),
      gasLimit: this.w3.utils.toHex(150000),
      gasPrice: this.w3.utils.toHex(gasPrice.toString()),
      // gasPrice: this.w3.utils.toHex(this.w3.utils.toWei('10', 'gwei')),
      data: contract.methods.transferFrom(fromAddress, toAddress, this.w3.utils.toHex(amount.toString())).encodeABI()
    }
    var signRaw = await this.w3.eth.accounts.signTransaction(rawTx, this.privateKey);

    // let tx = new EthereumTx(rawTx, { chain: ethereumjsNet , hardfork: 'petersburg' })
    // tx.sign(Buffer.from(this.privateKey, 'hex'))
    // let serializedTx = tx.serialize();
    // let raw = '0x' + serializedTx.toString('hex')

    var test = this.w3.eth.sendSignedTransaction(signRaw['rawTransaction']).then(result => {
      console.log(result)
      return result
    }).catch(error => {
      console.log(error.message)
    })
    return test
  }

It is normal when I call the contract method “transfer”

my code :

async transferToken(fromAddress, toAddress, amount) {
    let nonce = await this.w3.eth.getTransactionCount(fromAddress)
    let gasPrice = await this.w3.eth.getGasPrice()
    let contract = await this.useConstract()
    let rawTx = {
      from: fromAddress,
      to: this.contractInfo.contractAddress,
      value: this.w3.utils.toHex(this.w3.utils.toWei('0', 'ether')),
      nonce: this.w3.utils.toHex(nonce++),
      gasLimit: this.w3.utils.toHex(50000),
      gasPrice: this.w3.utils.toHex(gasPrice.toString()),
      data: contract.methods.transfer(toAddress, this.w3.utils.toHex(amount.toString())).encodeABI()
    }
    // action: use EthereumTx 2.0.0, need set chain
    let tx = new EthereumTx(rawTx, { chain: ethereumjsNet , hardfork: 'petersburg' })
    tx.sign(Buffer.from(this.privateKey, 'hex'))
    let serializedTx = tx.serialize();
    let raw = '0x' + serializedTx.toString('hex')
    return await this.w3.eth.sendSignedTransaction(raw)
  }

hi @genius_tonya, is your tx eventually mined if you check the hash on etherscan ?
Check this link, is has some good suggestions: web3js - Error: Transaction was not mined within 750 seconds, please make sure your transaction was properly sent. Be aware that it might still be mined! - Ethereum Stack Exchange

Also, you can control this 750s timeout from web3js web3.eth.Contract — web3.js 1.0.0 documentation

Traian

No, no transactions can be found on ropsten.etherscan.io. In fact, this transaction did not return anything after sendSigndTransation. So there is no txid.