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20

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Weird error during buy tokens with eth on ropsten and other testnets

solidity-0.6.x uniswap

modified 23 mins ago gbenroscience 143

1

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1

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14

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answered 1 hour ago Rob Hitchens 39.5k

0

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1

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28

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how different users write their data in ethereum network?

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1

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17

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12

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17

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0

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1

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14

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Uniswap V2's swapExactETHForTokens: How to know the number of tokens bought

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answered 20 hours ago goodvibration 15.3k

0

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1

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1

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1

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21

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0

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1

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13

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Is there a Vyper equivalent to OpenZeppelin's SafeERC20.safeTransfer?

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answered 21 hours ago iamdefinitelyahuman 1,623

0

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2

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24

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answered yesterday Markus - soliditydeveloper.com 1,002

0

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0

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14

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18

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What does an Ethereum Client do?

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1

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18

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Explicit type conversion not allowed from “string memory” to “uint256”

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2

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27

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Sending extra data beside or inside a new smart contract

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answered yesterday Mikhail Vladimirov 4,754

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16

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String To bytes Error

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answered yesterday goodvibration 15.3k

0

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0

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22

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In Solidity, which value the function type should return?

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asked yesterday Hsiang 19

0

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1

answer

12

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Solidity get() function only returning one string when i ask for all strings in mapping

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answered yesterday Miroslav Nedelchev 996

1

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1

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25

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Solution for mapping corporative credentials with Ethereum account

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answered yesterday Rob Hitchens 39.5k

0

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1

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19

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err=“authentication needed: password or unlock” in geth

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answered yesterday clement 91

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0

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24

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Function call browser monitoring of Metamask [closed]

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modified yesterday SAHIL SIKARWAR 63

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0

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25

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Fast sync ain't fast enough

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modified yesterday El Sampsa 171

0

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1

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23

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Solidity ^0.6.10 returnBalance() returns “VM Exception while processing transaction: invalid opcode”

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answered yesterday Vasya 3

2

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0

answers

17

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generate large amount of ethereum address with hardware wallet

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asked 2 days ago letsgocsm 21

0

votes

1

answer

15

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Efficient Alternative to generateCards()

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modified 2 days ago goodvibration 15.3k

0

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0

answers

20

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Metamask transactions stuck at pending [closed]

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asked 2 days ago Mark Palmer 1

0

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0

answers

39

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How do i withdraw Eth from a contract i created

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asked 2 days ago Soupdragon 1

0

votes

1

answer

24

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Weird exchange rate when buying DAI with Ether

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answered 2 days ago flygoing 8,795

0

votes

1

answer

55

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Swap ether to tokens on Uniswap V2 Router 02 fails

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modified 22 hours ago gbenroscience 143

0

votes

1

answer

17

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In MetaMask (web3.js 0.20.x) how to get events happened during a transaction?

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modified 2 days ago porton 358

0

votes

1

answer

40

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In Solidity, what's the difference between funtion type and funtion? [closed]

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answered Jul 2 at 8:56 AvocadoChocolate 83

0

votes

0

answers

14

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Compile error. Fallback function error

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asked 2 days ago Guest 11

1

vote

1

answer

17

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How to install solc of a specific version?

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answered 2 days ago Зелёный 817

0

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1

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19

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Finality in blockchain consensus

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answered 2 days ago Rob Hitchens 39.5k

0

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0

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11

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Is there a way to get revert message by my client?

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modified 2 days ago alfo888_ibg 119

0

votes

1

answer

34

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Solidity Smart Contract withdrawal ETH with amount from contract address does not work

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answered 2 days ago kinjia 1

-1

votes

0

answers

20

views

This declaration shadows an existing declaration(problem with compile)

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modified 2 days ago Rob Hitchens 39.5k

0

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1

answer

17

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Compilation Error

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answered 2 days ago Ismael 21.1k

4

votes

1

answer

64

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Why do I need decentralized oracles?

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modified Jul 1 at 16:53 Patrick Collins 327

0

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0

answers

17

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Is there a tool to add SafeMath to production code?

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asked 2 days ago traxium 163

0

votes

0

answers

45

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Get the txHash,but on etherscan I get “Sorry, We are unable to locate this TxnHash”?

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asked Jul 1 at 16:26 heyooo12 1

0

votes

1

answer

17

views

How to implement “Mint” and “Own” in an ERC20 Token

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answered Jul 2 at 3:28 Markus - soliditydeveloper.com 1,002

0

votes

2

answers

91

views

Swap tokens back to ether on Uniswap V2 Router 02 (Sell tokens)

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modified Jun 30 at 22:44 gbenroscience 143

0

votes

0

answers

24

views

Types in Solidity [closed]

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asked Jul 1 at 22:14 Guest 11

0

votes

1

answer

27

views

How can a smart contract determine the address sending ETH to it?

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modified Jul 1 at 15:17 goodvibration 15.3k

0

votes

1

answer

17

views

Error: while migrating Event: invalid address (arg=“benificiaryAddress”, coderType=“address”, value=undefined) [closed]

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answered 2 days ago flygoing 8,795

1

vote

1

answer

14

views

method like fallback function for ERC20 tokens?

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modified Jul 1 at 20:34 Mikko Ohtamaa 10.9k

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