Questions tagged [truffle-compile]

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truffle compile/migrate gives error: “ParserError: Expected pragma, import directive or contract/interface/library definition.”

The tutorial I'm following created a 2_Migrations.sol with the following: const Token = artifacts.require("Token"); module exports = function(deployer) { deployer deploy(Token); }; "Truffle ...
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2answers
624 views

ParserError: Expected identifier, got 'LParen' constructor() public {

i don't know why i get this problem, anybody who can helps thanks a lot pragma solidity ^0.4.21; contract MathContract { function mulAtoB(uint a, uint b) pure public returns(uint) { ...
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1answer
97 views

ERC721Enumeration: DeclarationError for tokenOfOwnerByIndex(address owner, uint256 index)

I am new to the smart contract and please let me know why I have the error shown below. I compiled with the command, "truffle compile". I did not make any particular edits to the original contract ...
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2answers
831 views

Truffle: Error: Could not find a compiler version matching 0.5.0

I wonder why I get the error when I have v0.5.0 everywhere and do the following: In my Action.sol: pragma solidity ^0.5.0; In Migrations.sol: pragma solidity >=0.5.0 <0.6.0; When running truffle ...
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1answer
584 views

how do i fix Expected primary expression error

Expected primary expression. j* = 10; ^ $ truffle migrate Error parsing C:\Users\Welcome\Downloads\ethereum-dapp\contracts\Integers.sol: ParsedContract.sol:29:16: ...
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1answer
361 views

Pass parameters into Solidity Constructor from Truffle CONSOLE

How do we pass in constructor parameters to a contract that we want to test? I understand that the initial contract deployment occurs in the migrations file, but if, for testing/debugging purposes, we ...
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1answer
226 views

Cannot verify a particular smart contract code on Etherscan with optimization enabled

I've already deployed many smart contracts to Ropsten testnet and successfully verified them in Etherscan, but today I encountered one contract which doesn't get verified through all my attempts. This ...
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1answer
201 views

DeclarationError: Identifier not found or not unique when deploying a facotry contract

I am using truffle with angular to write DAPP. I have a factory contract which will deploy an other contract named rental through a function called newContract. here is my factory contract pragma ...
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1answer
80 views

How Do I Compile a Smart Contract from GitHub?

Our Smart Contract developer has provided our smart contract repo via GitHub The GitHub repo has the following folders: -keys -scripts -src And these files: -.gitignore -Disclaimer.md -LICENSE -README....
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1answer
15 views

truffle solc specific compiler fail

,/C/Users/juhne/ipfs-image-dapp/contracts/Migrations.sol:1:1: ParserError: Source file requires different compiler version (current compiler is 0.5.16+commit.9c3226ce.Emscripten.clang - note that ...
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0answers
28 views

TypeError: Cannot read property '0' of undefined AND TypeError: eventAdded.watch is not a function

I'm currently trying to test run source code from GitHub based on a 2018 tutorial where solidity was using version 0.5.16. I'm currently using truffle v4.1.14. Appreciate any help. Thanks! In the ...
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1answer
19 views

TypeError: “send” and “transfer” are only available for objects of type “address payable”, not “address”

I'm currently trying to test run source code from GitHub based on a 2018 tutorial where solidity was using version 0.5.16. I'm currently using truffle v4.1.14. I understand that there was an update ...
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1answer
33 views

TypeError: Operator >= not compatible with types bytes1 and int_const 37

pragma solidity ^0.5.16; library EmailRegex { struct State { bool accepts; function (byte) internal pure returns (uint) func; } function state(uint id) internal pure returns (State ...
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0answers
20 views

Compile error. Fallback function error

I use pragma 0.6.2. I am trying copile in truffle code which contain this lines: fallback() external payable{} I an getting error: The payable fallback function is defined here. fallback() external ...
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1answer
59 views

Compilation Error

Hi guys I got this error when I try to compile using truffle develop. truffle(develop)> compile Compiling your contracts... Compiling ./contracts/StarNotary.sol /mnt/d/Blockchain/...
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1answer
37 views

Error in smart contract solidity [closed]

Hello i have some problem when i compile my smart contract with truffle i use the network of truffle develop Truffle v5.1.14-nodeLTS.0 (core: 5.1.13) Solidity - ^0.4.0 (solc-js) Node v13.1.0 Web3....
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0answers
25 views

How to keep track of deployed versions and implement a CD strategy with truffle?

My original question on SO here didn't had much success... so I copy/paste it here, hoping for more interest. Thanks in advance! I'm working on a dapp project which includes a main smart contract, ...
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1answer
28 views

mnemonic.includes in not a function

I've been trying to compile my solidity smart contracts So I'd be able to deploy them on the Ropsten Test network when I run truffle compile I get this error : TypeError: mnemonic.includes is not a ...
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1answer
19 views

looking for a start in solidity [duplicate]

I am totally new to the Solidity Programing. I was working on NodeJS, express and mongoDB. Few days ago I started working on blockchain. I have to write the API'S for contracts. We are using truffle ...
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0answers
70 views

TypeError: Operator != not compatible with types string storage ref and int_const 0

Im using blockchain technology for the first time, for a college project. Im trying to run a smart contract from Github (in Powershell windows 10). Im unable to compile the contract due the following ...
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1answer
36 views

Im getting the following error: ParserError: Expected primary expression. struct ManagingOrder.Parking memory new_Parking = Parking({

Im using blockchain technology for the first time, for a college project. Im trying to run a smart contract from Github. After debugging the errors shown while compiling the smart contract (in ...
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0answers
59 views

Truffle - set or disable optimizer only for selected contracts

I have over 40 contracts in my project, for example: admin groups votings registry token In my truffle config I have optimizer enabled with 600 runs. compilers: { solc: { version: "0.5....
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1answer
118 views

ReferenceError: config is not defined [closed]

require("babel-register"); require("babel-polyfill"); require("dotenv"),config(); module.exports = { networks: { development: { host: "127.0.0.1", port: 7547, network_id: "*" ...
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0answers
339 views

Truffle.js file is not created with truffle init command

I have run the truffle init command successfully with creating the following directories and files such as contracts, migrations, test, and truffle-config.js but the one file is missing as truffle.js? ...
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0answers
74 views

solc command is generating empty .bin files

Firstly, this is not an inheritance problem like in this post I have the following two files ( ManagedWallet.sol & ManagedWalletLookup.sol ) pragma solidity ^0.4.24; contract ...
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0answers
182 views

Struct Mapping: DeclarationError: Identifier not found or not unique for

Using openzepplin version 2.0.0 and solc version 0.5. I am writing an ERC721 token contract on truffle. Truffle compiles with no error on solc 0.4.23. I had to upgrade to 0.5 due to openzepplin ...
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0answers
858 views

FATAL ERROR: Rebalance Allocation failed - process out of memory

So while running truffle compile for my contracts on AWS Ubuntu server I got the following error: <--- Last few GCs ---> [17055:0x3985730] 11958 ms: Scavenge 511.7 (553.4) -> 506.9 (553.4) ...
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0answers
63 views

Truffle contract compilation from STDIN or something like this

My contracts have some methods that used only for testing i.e. exposes some internal contract data and I do not want to deploy it to live network. for now Solidity does not supports C-style ...
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0answers
119 views

Help on key.json file

Dears, I am getting the below error while trying to compile the contract. ~/Desktop/TstToken$ truffle compile TypeError: Cannot read property 'kdf' of undefined at Function.Wallet.fromV3 (/home/...
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3answers
3k views

I can't run truffle commands in powershell Ise

I am looking around for questions similar to mine but basically I cannot run any truffle commands in the powershell Ise ONLY. I can make it run on the node.js command line. example: > PS C:\Users\...
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1answer
214 views

Oraclize code not compiling using TRUFFLE COMPIL

I am trying to compile below mentioned code (taken from Oraclize documents) using TRUFFLE but am getting compilation error saying : 'Cannot parse one.sol: Unexpected token p in JSON at position 0'. ...
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2answers
166 views

Problem with smart contract deployment

I have compiled test crowdsale smart contract with inheriting from other contracts( like TestToken is MintableToken). The main smart contract consists only of one file, where I described all ...
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1answer
120 views

Problem with the compilation in the truffle framework

I made a smart contract in Remix-Solidity IDE, when I compiled it I had no errors and I was able to remove the contract but when I tried to use the truffle for my Dapp and compiled it it showed me ...
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1answer
139 views

ParserError compiling Smart Contract, what's wrong?

I'm getting this error when trying to compile a contract using cmd on windows: Error parsing C:/Users/alexa/Desktop/contracts/contracts/ApprovalContract.sol: ParsedContract.sol:6:37: ParserError: ...

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