Recent questions tagged solidity

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safeTransferFrom does not transfer etherium to the target. ERC-721

Apr 7, 2022 in Blockchain by Soham
 • 9,730 points • 1,443 views
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1 answer

safeTransferFrom does not transfer etherium to the target. ERC-721

Apr 5, 2022 in Blockchain by Aditya
 • 7,680 points • 2,375 views
0 votes
1 answer

Protect photo ownership using blockchain

Apr 5, 2022 in Blockchain by Soham
 • 9,730 points • 1,262 views
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Can third party send an ERC20 token transaction to the Ethereum blockchain?

Apr 4, 2022 in Blockchain by Rahul
 • 9,690 points • 1,127 views
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1 answer

How to add liquidity for an inflationary cryptocurrency

Mar 16, 2022 in Blockchain by Soham
 • 9,730 points • 899 views
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How to delete an image saved in IPFS blockchain?

Mar 4, 2022 in Blockchain by Soham
 • 9,730 points • 872 views
+1 vote
1 answer

Is it possible to store images on the Ethereum blockchain?

Feb 24, 2022 in Blockchain by Soham
 • 9,730 points • 2,318 views
0 votes
1 answer

capture an event issued by a smart contract and make a web request

Dec 29, 2020 in Blockchain by anonymous
 • 120 points • 1,061 views
0 votes
1 answer

How to set the ERC20 token price in respect to ether in solidity?

Nov 7, 2020 in Blockchain by jas
 • 120 points • 5,466 views
0 votes
1 answer

Solidity: Code to hide message sender address (msg.sender) when writing on a contract

Sep 14, 2020 in Blockchain by Wilson
 • 140 points • 2,546 views
+1 vote
1 answer

Can we pass string values to the contract which holds bytes 32 only?

Aug 26, 2019 in Blockchain by anonymous
 • 130 points • 1,274 views
+1 vote
0 answers

Can't call contract function in Remix in Web3 provider mode, but it works in Javascript VM

Jun 15, 2019 in Blockchain by XHQ
 • 2,894 views
0 votes
2 answers

web3 accounts coming undefined

Jun 9, 2019 in Blockchain by gaurav
 • 120 points • 2,583 views
0 votes
1 answer

What is geth and solidity in Blockchain?

Jun 8, 2019 in Blockchain by siddu
 • 3,214 views
0 votes
1 answer

Installing Solidity on Linux

Feb 28, 2019 in Blockchain by Raghu
 • 3,463 views
+1 vote
4 answers

Uncaught Error: Returned values aren't valid, did it run Out of Gas?

Jan 31, 2019 in Blockchain by Amit
 • 9,219 views
0 votes
1 answer

Geth console can’t access smart contract

Jan 27, 2019 in Blockchain by Neeraj
 • 1,426 views
0 votes
1 answer

Variable declaration problem in truffle console.

Jan 27, 2019 in Blockchain by Shreya
 • 1,568 views
0 votes
1 answer

Calling Truffle Commands through a script

Jan 25, 2019 in Blockchain by Vaishnavi
 • 1,525 views
0 votes
1 answer

How to run a Javascript in truffle console?

Jan 24, 2019 in Blockchain by Mamta
 • 2,951 views
0 votes
1 answer

How to call a payable contract function from truffle console?

Jan 24, 2019 in Blockchain by MK Bhat
 • 2,907 views
0 votes
1 answer

Solidity Error: Exceeds block gas limit

Jan 24, 2019 in Blockchain by Mary
 • 3,191 views
0 votes
1 answer

Unexpected error: Cannot provision contracts while instantiating the console

Jan 23, 2019 in Blockchain by Nimisha
 • 1,271 views
0 votes
1 answer

Not able to install truffle-contract

Jan 23, 2019 in Blockchain by Piyush
 • 2,955 views
0 votes
1 answer

Solidity: casting address to address payable

Jan 23, 2019 in Blockchain by Kunal
 • 8,598 views
0 votes
1 answer

Error while sending an address to functions

Jan 23, 2019 in Blockchain by Kumar
 • 3,539 views
0 votes
1 answer

How can I call a contract from another contract?

Jan 23, 2019 in Blockchain by Suman
 • 2,126 views
0 votes
1 answer

Truffle "Migrations" ran out of gas error

Jan 17, 2019 in Blockchain by slayer
 • 29,370 points • 4,376 views
0 votes
1 answer

"Migrations" exceeded the block limit (with a gas value you set).

Jan 17, 2019 in Blockchain by slayer
 • 29,370 points • 6,649 views
0 votes
1 answer

Truffle compile compilation failed

Jan 17, 2019 in Blockchain by slayer
 • 29,370 points • 4,306 views
0 votes
2 answers

Truffle compile: SyntaxError: No visibility specified. Did you intend to add "public"?

Jan 17, 2019 in Blockchain by slayer
 • 29,370 points • 4,390 views
0 votes
3 answers

Solidity: TypeError: Data location must be "memory" for parameter in function, but none was given.

Dec 12, 2018 in Blockchain by slayer
 • 29,370 points • 5,328 views
0 votes
1 answer

Solidity error: SyntaxError: No visibility specified.

Dec 12, 2018 in Blockchain by slayer
 • 29,370 points • 7,870 views
+1 vote
2 answers

Not able to install Solidity in Ubuntu

Dec 12, 2018 in Blockchain by slayer
 • 29,370 points • 2,414 views
0 votes
1 answer

How to print a message in Solidity??

Dec 12, 2018 in Blockchain by slayer
 • 29,370 points • 16,550 views
0 votes
1 answer

Can I execute distributions in ERC20 tokens on a later stage?

Nov 2, 2018 in Blockchain by Perry
 • 17,100 points • 1,073 views
0 votes
1 answer

Ethereum Advance token sample

Nov 2, 2018 in Blockchain by Perry
 • 17,100 points • 835 views
0 votes
1 answer

How to issue regular payouts to multiple wallets?

Oct 30, 2018 in Blockchain by Perry
 • 17,100 points • 1,148 views
0 votes
1 answer

Unable to change a state variable in a contract

Oct 30, 2018 in Blockchain by Perry
 • 17,100 points • 800 views
0 votes
1 answer

How to reduce a random hash to a boolean value

Oct 26, 2018 in Blockchain by Prerna
 • 1,960 points • 1,166 views
0 votes
1 answer

Are Ethereum contract function securable?

Oct 26, 2018 in Blockchain by Prerna
 • 1,960 points • 1,108 views
0 votes
1 answer

Solidity Web3js: Invalid number of arguments to Solidity function error

Oct 22, 2018 in Blockchain by slayer
 • 29,370 points • 3,160 views
0 votes
1 answer

Solidity: How to return id from hash value?

Oct 22, 2018 in Blockchain by digger
 • 26,740 points • 2,786 views
0 votes
1 answer

Can one contract own tokens of another contract?

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 1,715 views
0 votes
1 answer

How to get ethereum contract public variables?

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 2,319 views
+1 vote
1 answer

Return array of struct from a solidity function: "Expected type name function getPurchaseOrderForVendor" error

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 5,510 views
+4 votes
2 answers

Warning: Invoking events without “emit” prefix is deprecated while truffle compile

Oct 15, 2018 in Blockchain by digger
 • 26,740 points • 2,172 views
0 votes
1 answer

How to handle smart contract transaction express nodejs?

Oct 15, 2018 in Blockchain by digger
 • 26,740 points • 2,254 views
0 votes
1 answer

Ethereum solidity: Unable to get value from another contract

Oct 15, 2018 in Blockchain by digger
 • 26,740 points • 1,960 views
0 votes
1 answer

How to save complex object in the contract in solidity

Oct 15, 2018 in Blockchain by slayer
 • 29,370 points • 3,884 views
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