solidity – Stack Overflows | The World’s Largest Online Community for Developers

- Questions
- Tags
- Badges
- Categories
- Users

LATEST ANSWERS
- RE : “RNCSafeAreaView” was not found in the UIManager By Minhaddiemarissa - on November 9, 2020
  I try to open a bundle, but when the android is running it shows the next message 2020-01-05 23:15:45.366 26210-26210/com.note.principal...
- RE : “RNCSafeAreaView” was not found in the UIManager By Jacobgroverangie - on November 9, 2020
  I try to open a bundle, but when the android is running it shows the next message 2020-01-05 23:15:45.366 26210-26210/com.note.principal...
- RE : “RNCSafeAreaView” was not found in the UIManager By Bennyclaytonsheena - on November 9, 2020
  I try to open a bundle, but when the android is running it shows the next message 2020-01-05 23:15:45.366 26210-26210/com.note.principal...
- RE : “RNCSafeAreaView” was not found in the UIManager By Minhtinalindsey - on November 9, 2020
  I try to open a bundle, but when the android is running it shows the next message 2020-01-05 23:15:45.366 26210-26210/com.note.principal...
- RE : “RNCSafeAreaView” was not found in the UIManager By Pierredoreenelinor - on November 9, 2020
  I try to open a bundle, but when the android is running it shows the next message 2020-01-05 23:15:45.366 26210-26210/com.note.principal...
- RE : “RNCSafeAreaView” was not found in the UIManager By Erasmobricelou - on November 9, 2020
  I try to open a bundle, but when the android is running it shows the next message 2020-01-05 23:15:45.366 26210-26210/com.note.principal...
- RE : Error “Your cache folder contains root-owned files, due to a bug in previous versions of npm” while “npx... By Adalbertoguillermosheena - on November 9, 2020
  When I was trying to create a new react app using npx create-react-app example_app, I get this error [Your cache...
- RE : Error “Your cache folder contains root-owned files, due to a bug in previous versions of npm” while “npx... By Carmineothaaimee - on November 9, 2020
  When I was trying to create a new react app using npx create-react-app example_app, I get this error [Your cache...

Question Tag: solidity

All Questions

Filter by

Questions Per Page:

UnimplementedFeatureError: Copying of type struct post_office.Message memory[] memory to storage not yet supported
I don’t know what is wrong with my code, could someone help me? pragma solidity >=0.4.22 <0.7.0; pragma experimental ABIEncoderV2; …
arrays

ethereum

solidity

Alex Professor Asked on October 26, 2020 in Android langue.
- 17 views
- 0 answers
- 0 votes

Solidity: Students certification architecture
I recently did a course on uDemy and get the first concepts. I’m starting to build a real-life app for …
arrays

ethereum

mapping

smartcontracts

solidity

Aldenolinelvira Professor Asked on October 25, 2020 in Android langue.
- 20 views
- 0 answers
- 0 votes

How to emit utf8 message in solidity
How to emit utf8 message (such as Chinese) in the code below? pragma solidity ^0.7.2; modifier buyerOnly() { require( msg.sender …
solidity

utf-8

Devinfeltonjo Professor Asked on October 23, 2020 in Android langue.
- 24 views
- 0 answers
- 0 votes

web3 encodeFunctionCall does not work (well 2 specific functions calls together in 1 transaction does not work)
I am trying to execute deposit and withdraw function from yDAI (yearn.finance) within the same transaction using web3 encodeFunctionCall. deposit …
ethereum

smartcontracts

solidity

web3js

Gustavobernadettejacklyn Professor Asked on October 16, 2020 in Android langue.
- 27 views
- 0 answers
- 0 votes

web3 JS not catching Emitted event from Solidity Contract
I have a good working Solidity contract (a fun little ERC-721 Contract) that emits an event when the user buys …
blockchain

ethereum

solidity

Alexanderclaytonbarbara Professor Asked on October 16, 2020 in Android langue.
- 40 views
- 0 answers
- 0 votes

The network id specified in the truffle config (4447) does not match the one returned by the network (4777)
Please, the error messsage is in this imgur link, how’s that even possible? They are the same network, but I …
ethereum

javascript

solidity

truffle

Sherwooddoloressheri Professor Asked on October 14, 2020 in Android langue.
- 25 views
- 1 answers
- 0 votes

Cancel dropped transaction in ethereum
With our Ethereum Wallet, we submit smart contracts with a nodejs script connected to Geth. Usually transactions are mined without …
ethereum

gethashcode

smartcontracts

solidity

transactions

Erasmoclaytonstephanie Professor Asked on September 22, 2020 in Android langue.
- 31 views
- 0 answers
- 0 votes

KeyError: 'Value' when running slither on a contract
Python version: 3.8.5 Solc version: 0.7.0+commit.9e61f92b.Linux.g++ Slither version: 0.6.13 When trying to run slither . on a solidity contract I …
python-3.x

solidity

Carminerachellelinda Professor Asked on September 22, 2020 in Android langue.
- 20 views
- 0 answers
- 0 votes

Slice numbers in Solidity (For example extract 2 first number from uint)
I have this numbers: uint256 numbers = 123456789; I need to extract the two first number (12) into uint variable. …
ethereum

remix

smartcontracts

solidity

truffle

Noahkennithangie Professor Asked on September 20, 2020 in Android langue.
- 0 views
- 0 answers
- 0 votes

Slice numbers in Solidity (For example extract 2 first number from uint)
I have this numbers: uint256 numbers = 123456789; I need to extract the two first number (12) into uint variable. …
ethereum

remix

smartcontracts

solidity

truffle

John Professor Asked on September 20, 2020 in Android langue.
- 27 views
- 0 answers
- 0 votes

LATEST ANSWERS

Tags Widget

HOT QUESTIONS