Hi, thanks for the great tutorial... When I tried deploying to the TESTNET I received this error... ´Deploying contract... Deployment error: Error: cannot estimate gas; transaction may fail or may require manual gas limit ´ Do you know why??? Thanks 🙏

boy has this chanegd. the aws impor doesn't wor anymore implicitly, which is the only reason i am frantically searching for a way to get this to work. Whywould they remove the abiliy to just import the aws sdk in the lambda?

Does anyone know what happened to goerli, it´s down now and i can´t make sepolia work with it!!

When something seems too good to be true, it usually is. Prove me wrong

Hi sir, I'm in a big trouble. can u help me.. I loss my ethereum using remix site. How can I withdraw my eth to my metamas wallet.. pls help.. How can I contact u.. Pls help..

can you send me your sample coding program, i am one of your viewer/subscriber and i want to learn more about solidity coding or how to code/create token contract.

Great work. Loved it how simple and clear you presented this. Thank you

Thanks bro . great video !

I dont unsdatnd the CI part in this. Isnt it just CD?

Thank you it worked, take care!

Nice tutorial. The command to init truffle is npx truffle init. truffle init will throw up errors. IF migrations.sol is not created then use npx truffle unbox command to create.

how can i execute the contract on real network ?

amazing contribution ser!!!

Эта проблема решается простым копированием кода в 10 строк с сайта Metamask, это лучше, чем смотреть по-полчаса чье-то видео

Hi Jonathan have you done a tutoirial on how to setup VS Code for a development scenario ie exactly how you set your machine.. Thanks in advance

Is python useful in this field..?

www.youtube.com/@BlockExplorerMedia When I run npx hardhat run --network sepolia scripts/deployFlashLoan.js I am getting error “factory runner does not support sending transactions (operation=“sendTransaction”, code=UNSUPPORTED_OPERATION, version=6.12.1)” 1. I am not sure why version is 6.12.1 2. I want to know the correct way to implement getSigner() to solve this problem. Ethers version in package.json “ethers”: “^5.1.3”, and I installed ethers with npm i @ethers5.1.3 Deploy script contains const hre = require(“hardhat”); thanks Uday

Refer to 14:22, I got this warning message, "This version of µWS is not compatible with your Node.js build: Error: Cannot find module '../binaries/uws_linux_x64_127.node'...Falling back to a NodeJS implementation; performance may be degraded.", yet the test is run successfully. Any idea how to fix that warning?

Amazing stuff. But i have an issue im trying to code along with you but when i create a next app i dont ger the pages folder

const FlashLoan = await hre.ethers.getContractFactory("FlashLoan"); const flashLoan = await FlashLoan.deploy("0x012bAC54348C0E635dCAc9D5FB99f06F24136C9A"); Flash Loan is not deployed. Address is POOLADDRESSPROVIDER AAVE-V3 for Sepolia Testnet. Can you pls help.

How can I set Buy and Sell Tax 5% on my token? Could you help me?

how much it cost all this?

Hello, I found problem during deploying the flashloan contract, when I run the command “box hardhat run -network sepolia scripts/deployFlashloan.js” in the terminal, I got a TypeError: flashloan.deployed is not a function… at processTicksAndRejections (node: internal/process/task_queues:95:5). I can’t find what’s wrong. Can anyone help me with it?

npx hardhat is not working npx : 无法将“npx”项识别为 cmdlet、函数、脚本文件或可运行程序的名称。请检查名称的拼写，如 果包括路径，请确保路径正确，然后再试一次。 所在位置 行:1 字符: 1 + npx hardhat + ~~~ + CategoryInfo : ObjectNotFound: (npx:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundException

Super useful videos! Thanks for sharing them with us!

Hello, thanks for tutorial. im getting the following error: "NotImplementedError: Method 'HardhatEthersProvider.resolveName' is not implemented" when i try to deployFlashloan.js (following minute 27:40 from video. Anyone know what is the problem?

Thank you Brother you're tutorial Brother I need Some Help When I try for hashlips contract NFT.REVEAL.sol There's some error (Strings) I fixed putting [import @openzeppelin/contracts/utils/Strings.sol ] But onther error in (require _exists(tokenId), _exists is The error

i faced bag gatewayt error after deploy code to aws elastic beanstalk, any idea?

very initeresting, but goerli is deprecated. how do i do to change to sepolia? im new to this . thank you .

Smart contrat in The video différent in your repo😂

If you want to split the sale, First Pre-sale and after that the main one, how to be organized in the contract?

really

but i'd like to see a video on how to orgaise an airdrop of your token, or even get it listed on binance or coinbase.

great video, sir.

use terms like path parameters in title, it would be easy to search

thanks alot searching for it

Hi, I'm running into this error: npm : The term 'npm' is not recognized as the name of a cmdlet, function, script file, or operable program. Check the spelling of the name, or if a path was included, verify that the path is correct and try again. At line:1 char:1 + npm init + ~~~ + CategoryInfo : ObjectNotFound: (npm:String) [], CommandNotFoundException + FullyQualifiedErrorId : CommandNotFoundE xception Any help?

Hey, can this be done in BSC?

My token got split up into two routes 90% and 10% but I never received the 10% so basically I instantly lost $106 what exactly happen here do you think?

I could not get this to deploy... it must have something to do with how things are currently working vs 5 years ago when the video was recorded. Too bad, I was looking forward to doing the steps. Perhaps they will update this video.

Can you do a video of how to exit a smart contract and bring coins back to your account if for example Uniswap Labs gets shut down?

How can I contact you? Great Video

for any one using openzeppeline v5 if ur getting an error while assigning msg.sender to the owner variable change it to owner = payable(msg.sender) and _beforetokentransfer has been removed in v5 , so we have to override the _update function and add the logic

Hey, thank you for the video, super thorough and helpful! One quick question though, is the coding the same for minting and BlockRewards now that Ethereum has moved to Proof of Stake or should we do anything different?

Will this contract work for base chain L2 from coinbase. Let me know how to contact you. Thanks

Do i need to write that smart contract to do flash loan arbitrage on Aave?

Can I use this for the balancer protocol ? Please I will appreciate your help on this

Can I copy the solidity contract from you and past it in Remix ide to deploy the contract?

Very good. I like your teaching style, where you troubleshoot basic errors without editing them out. Do you have any videos on how to import external libraries from python into lambda?

this is how scammers drain your wallet don't do it!