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n3n3
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9 votes
8 answers
32k views

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

6 votes
1 answer
3k views

Initialize state variables in the contract constructor or directly in the declaration?

5 votes
2 answers
3k views

Ethers.js equivalent for web3.eth.getStorageAt?

5 votes
1 answer
3k views

How to run hardhat tests on a testnet?

3 votes
1 answer
285 views

solidity-coverage giving wrong report

2 votes
2 answers
2k views

Can't get info with web3: web3.eth.getAccounts returns undefined

1 vote
2 answers
2k views

How to Approve contract to transfer tokens

1 vote
1 answer
142 views

How to assign an array inside a struct?

1 vote
0 answers
378 views

Is there a way to subscribe to a The Graph subgraph?

1 vote
2 answers
1k views

How to fork Etherscan block explorer?

1 vote
1 answer
368 views

Do I need to initialize the 'i' variable in a for loop?

0 votes
1 answer
120 views

Piñata files not being found

0 votes
1 answer
236 views

Can't call a external view function with web3

0 votes
1 answer
1k views

Can't See NFT on OpenSea Testnet

0 votes
2 answers
1k views

How to use changeEtherBalance from waffle-hardhat?