Recent questions tagged blockchain

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1 answer

Hyperledger-Composer: Error: Object with ID 'undefined' in collection with ID 'chaincodes' does not exist

Oct 29, 2018 in Blockchain by slayer
 • 29,370 points • 2,714 views
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1 answer

Cant extract hyperledger artifacts

Oct 29, 2018 in Blockchain by slayer
 • 29,370 points • 765 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 • 1,135 views
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1 answer

Are Ethereum contract function securable?

Oct 26, 2018 in Blockchain by Prerna
 • 1,960 points • 1,064 views
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1 answer

Hyperledger Fabric: Cant create channel on peer

Oct 26, 2018 in Blockchain by slayer
 • 29,370 points • 1,633 views
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1 answer

Hyperledger Composer: Error trying to instantiate composer runtime.

Oct 26, 2018 in Blockchain by slayer
 • 29,370 points • 1,032 views
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1 answer

Hyperledger Fabric: ./byfn.sh -m up failed

Oct 26, 2018 in Blockchain by slayer
 • 29,370 points • 1,139 views
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1 answer

Hyperledger Fabric: Not able to access user attribute using Attribute Based Access Control (ABAC)

Oct 26, 2018 in Blockchain by slayer
 • 29,370 points • 3,115 views
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2 answers

Hyperledger: ./byfn.sh -m up gives error

Oct 26, 2018 in Blockchain by slayer
 • 29,370 points • 1,547 views
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1 answer

Hyperledger Composer cant find business card.

Oct 26, 2018 in Blockchain by digger
 • 26,740 points • 1,083 views
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1 answer

Hyperledger fabcar: node enrollAdmin.js error

Oct 26, 2018 in Blockchain by digger
 • 26,740 points • 1,539 views
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1 answer

How to get TimeStamps in Hyperledger Composer?

Oct 26, 2018 in Blockchain by digger
 • 26,740 points • 1,592 views
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1 answer

Cant query in Hyperledger Composer

Oct 26, 2018 in Blockchain by digger
 • 26,740 points • 1,039 views
+1 vote
4 answers

Hyperledger: Cannot compile chaincode, cannot find package error

Oct 26, 2018 in Blockchain by digger
 • 26,740 points • 13,606 views
+1 vote
5 answers

Hyperledger Fabric: Error cryptogen tool

Oct 24, 2018 in Blockchain by digger
 • 26,740 points • 3,992 views
0 votes
1 answer

Hyperledger Composer Incompatible versions error

Oct 24, 2018 in Blockchain by digger
 • 26,740 points • 715 views
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1 answer

Go ethereum: Gradle sync error

Oct 24, 2018 in Blockchain by digger
 • 26,740 points • 983 views
0 votes
1 answer

Mining in private net: Balance not increasing

Oct 24, 2018 in Blockchain by digger
 • 26,740 points • 810 views
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1 answer

How to run smart contract function using nethereum to return a result?

Oct 24, 2018 in Blockchain by digger
 • 26,740 points • 2,299 views
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1 answer

Truffle init: Error: Cannot find module 'original-require'

Oct 24, 2018 in Blockchain by slayer
 • 29,370 points • 2,246 views
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1 answer

Ethereum Mist: Compiling Error with sha3

Oct 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,316 views
0 votes
2 answers

Ethereum function completed not event not showing up

Oct 24, 2018 in Blockchain by slayer
 • 29,370 points • 1,184 views
0 votes
1 answer

Ethereum serpent version conflict error.

Oct 24, 2018 in Blockchain by slayer
 • 29,370 points • 616 views
0 votes
1 answer

Ethereum Node Connection: TypeError: Cannot read property 'version' of undefined

Oct 24, 2018 in Blockchain by slayer
 • 29,370 points • 2,181 views
0 votes
1 answer

Hyperledger Fabric v1.0 setup on multiple machines

Oct 23, 2018 in Blockchain by sabby
 • 4,370 points • 1,735 views
0 votes
1 answer

Hyperledger fabric: curl not working to invoke chaincode

Oct 23, 2018 in Blockchain by sabby
 • 4,370 points • 1,405 views
0 votes
1 answer

Nodejs cannot access Hyperledger composer shows error

Oct 23, 2018 in Blockchain by sabby
 • 4,370 points • 1,043 views
0 votes
1 answer

re hyperledger's node/sdk: there is no typing definition( index.d.ts )

Oct 23, 2018 in Blockchain by sabby
 • 4,370 points • 1,070 views
0 votes
1 answer

Ethereum truffle MetaCoin : 'intrinsic gas too low' error

Oct 22, 2018 in Blockchain by slayer
 • 29,370 points • 1,579 views
0 votes
1 answer

PHP IPC with geth Ethereum: How to communicate with client?

Oct 22, 2018 in Blockchain by slayer
 • 29,370 points • 2,171 views
0 votes
1 answer

Not able to invoke a contract in Ethereum Private chain using geth

Oct 22, 2018 in Blockchain by slayer
 • 29,370 points • 1,289 views
0 votes
1 answer

Web3js: how to catch ethereum contract exception?

Oct 22, 2018 in Blockchain by slayer
 • 29,370 points • 2,496 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 • 3,128 views
0 votes
1 answer

How to read the ETH value and other token values from an account?

Oct 22, 2018 in Blockchain by digger
 • 26,740 points • 1,109 views
+1 vote
4 answers

Installing Nodejs: sh: node: command not found error

Oct 22, 2018 in Blockchain by digger
 • 26,740 points • 26,537 views
0 votes
1 answer

Web3: No provider set error

Oct 22, 2018 in Blockchain by digger
 • 26,740 points • 2,436 views
+1 vote
3 answers

Not able to read a file from my assets folder

Oct 22, 2018 in Blockchain by digger
 • 26,740 points • 7,380 views
0 votes
1 answer

Solidity: How to return id from hash value?

Oct 22, 2018 in Blockchain by digger
 • 26,740 points • 2,747 views
+1 vote
1 answer

Using bccsp instance from chaincode

Oct 22, 2018 in Blockchain by sabby
 • 4,370 points • 1,001 views
0 votes
1 answer

Hyperledger on Kubernetes - How can Kubernetes be aware of Chaincode container

Oct 22, 2018 in Blockchain by sabby
 • 4,370 points • 1,797 views
0 votes
1 answer

Can one contract own tokens of another contract?

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 1,690 views
0 votes
1 answer

How to install v1.7.3. of Geth using ppa?

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 1,451 views
0 votes
1 answer

How to get ethereum contract public variables?

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 2,268 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 • 5,468 views
0 votes
1 answer

sellprice and buyprice fixing in smart contract.

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 823 views
0 votes
1 answer

Integrating web3 in cloud functions module

Oct 17, 2018 in Blockchain by sabby
 • 4,370 points • 1,370 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 • 2,139 views
0 votes
1 answer

How to set the hex-encoded data field in a Web3j Ethereum transaction?

Oct 15, 2018 in Blockchain by digger
 • 26,740 points • 3,270 views
0 votes
1 answer

How to handle smart contract transaction express nodejs?

Oct 15, 2018 in Blockchain by digger
 • 26,740 points • 2,228 views
0 votes
1 answer

Ethereum nodejs: Unhandled rejection Error: Invalid JSON RPC response

Oct 15, 2018 in Blockchain by digger
 • 26,740 points • 2,779 views
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