Questions tagged [solc]

Questions related to the compiler for Solidity: solc

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779 views

Not able to get rid of error from solc-js “AssertionError [ERR_ASSERTION]: Invalid callback specified.”

const path=require('path'); const fs=require('fs'); const solc=require('solc'); const InboxPath=path.resolve(__dirname,'contracts','Inbox.sol'); const source=fs.readFileSync(InboxPath,'utf8'); solc....
2
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1answer
108 views

VS code Expected identifier, got 'LParen'solc

I keep getting this error/warning on my vscode when I emit events and build constructors. or After a bit of googling I understand it is something about my compiler, since solc <0.4.18 does not ...
2
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2answers
387 views

How to deploy a smart contract in a server?

I have developed a smart contract and compiled it with solc and bin and abi fils have been generated. Now, I want to deploy this contract using web3js in a linux server. How can I do it?
2
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1answer
297 views

How can we compile multiple smart contracts by compile.js file?

My compile.js file is below const path = require('path'); const fs = require('fs'); const solc = require('solc'); const ballotPath = path.resolve(__dirname, 'contracts', 'blocktitans_ballot.sol'); ...
0
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1answer
188 views

Solc “bin-runtime” not a command?

I can generate the .bin of a contract with solc as follows: solcjs --bin -o output contract.sol However running the following command: solcjs --bin-runtime -o output contract.sol Generates the ...
0
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1answer
161 views

Solidity solc compiler error on code Remix can compile

I am attempting to compile the following solidity code using solc in NodeJS. pragma solidity ^0.4.11; contract helloWorld { string public message; function constructor() public{ message = "...
2
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1answer
149 views

Importing .sol files from an node_modules folder

Did i miss something in configuration, or will this be fixed in an future version? Best regards # ls -al Makefile README.md build cmd contracts node_modules package.json # ls -al ./contracts Wallet....
0
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1answer
47 views

Using the correct/best solc version with Truffle and general tooling setup

I haven't worked with Truffle/Solidity for a while and I am trying to get my environment/toolchain configure correctly. I have some questions regarding the compiler config. I was originally not ...
0
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1answer
71 views

Gas is 0 when executing CALL opcode?

I wrote a very simple smart contract like this: contract Test{ function test1(address payable addr, uint256 value) payable public { addr.transfer(value); } } And I compiled it using ...
1
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1answer
118 views

Cannot deploy contract

I'm having difficulty deploying a solc-compiled contract to ganache test network using web3. package.json { "name": "smartinvoice", "version": "1.0.0", "description": "", "main": "index.js", ...
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1answer
90 views

I have written a javascript code for compiling the solidity code but it's showing error

I was trying to compile my contract using solc compiler but it returning me some errors. I will place my solidity code along with the error that I am getting here. Please help me out to sort this ...
1
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1answer
29 views

solc-v0.6.0: TypeError: Operator - not compatible with types tuple() and int_const 1

I am having this error on solc version 0.6.0. Basically I am returning length of the list and subtract 1 from it, where that value will be assigned to an uint variable. In general this command used ...
2
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1answer
635 views

Truffle Bytecode Different from Etherscan Bytecode

I am having difficulty verifying my contract code on Etherscan using the code generated by Truffle. Using Etherscan VerifyContract V1: https://rinkeby.etherscan.io/verifyContract Truffle produced ...
1
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1answer
160 views

verifying code deployed with web3.js

I am deploying my smart contracts using web3.js and compiling the code using solc. The contracts are deployed successfully with no issues however I am having a bit of a problem in verifying my ...
5
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2answers
655 views

Error when calling the selfdistruct method in solidity

I am quite new to solidity, and I have not managed to find a solution for this problem. I am passing the function an address but it says the following: "Invalid type for argument in function call. ...
1
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2answers
151 views

Install Old Solc Compiler Versions

I would like to compile older versions of solc contract source code using a solc compiler on my local machine. Is there a website from which to download old solc compilers? Google revealed a GitHub ...
1
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1answer
24 views

Are there any risks of undefined behavior when calling a function which doesn't return anything using a prototype of it which returns bool?

According to the ERC-20 Token Standard, functions transfer and transferFrom should return a boolean value indicating success or failure: interface IERC20Token { function transfer(address _to, ...
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3answers
852 views

Unable to get abi and bytecode when compiling using solc

I am new to solidity and am following a tutorial that uses solidity compiler version 0.4.25. In the tutorial, solc.compile is used in a compile.js file followed by extract abi and bytecode and ...
1
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2answers
1k views

Why is my web3j wrapper failing to generate?

I've created a smart contract in solidity which I've compiled with solc into a .bin & a .abi file. However, when I run the generator on the .abi and .bin files it returns a JSONParseException ...
2
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1answer
287 views

How can I use solc solidity compiler on truffle webpack?

When I try to import solc, it raises an error which says: ERROR in ./~/require-from-string/index.js Module not found: Error: Can't resolve 'module' in 'C:\users\bisrat\Desktop\webpacksample\...
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1answer
37 views

How do I install Go-ethereum and solidity on Debian10

I am using debain on wsl and I want to install ethereum and solidity for blockchain development but I am not able to find an exact way to do it.
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2answers
557 views

Calling a function from a contract passed in as an argument

Im Trying to create a DAPP with two contracts generating assets. One is acting as the "factory" for the other contracts. From the latter I try to call a function in the factory without knowing its ...
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0answers
24 views

Solc Compiler related Error in Nodejs

I have almost 800 .solc files of version ^0.5.12 (i am using also 0.5.13 compiler version), when i all give them to my input, to compile with following code; var walk = function (dir) { var ...
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2answers
152 views

Error while compiling Solidity code via py-solc

I am getting the following error while attempting to compile Solidity code via py-solc. Is it due to a new update of py-solc? how can I fix it? >>> from . import views File "/home/manzik/...
3
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1answer
256 views

Infinite gas estimate for empty contract

I am trying to deploy a contract with web3, and always get an error Error: exceeds block gas limit, even for correct or empty contract code. Actually, gasEstimates always throws : Error: gas required ...
1
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1answer
98 views

How to call a contract function that alters blockchain state on geth console

It should be easy, but I'm having a hard time using a simple smart contract described in the Solidity language reference called SimpleStorage. It only as one attribute, a setter and a getter, and I'm ...
0
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1answer
31 views

Deploy.js script is inifinite, does not show any errors

This is the deploy.js file: const assert = require('assert'); const HDWalletProvider = require('truffle-hdwallet-provider'); const Web3 = require('web3'); const cF =...
4
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2answers
2k views

What is the proper way to build and call a specific version of solidity?

I am getting the following error from solc: Error: Source file requires different compiler version (current compiler is 0.4.11-develop.2017.6.22+commit.68ef5810.Darwin.appleclang - note that nightly ...
0
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1answer
70 views

CONNECTION to Rinkeby showing false, contract not getting Deployed

SOURCE CODE var Web3 = require('web3'); var Tx = require('ethereumjs-tx'); const fs = require('fs'); const solc = require('solc'); var web3 = new Web3(); web3.setProvider(new web3.providers....
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1answer
75 views

what is 'UnimplementedFeatureError: Not yet implemented - FixedPointType' error?

what is 'UnimplementedFeatureError: Not yet implemented - FixedPointType' error in solidity while compiling through truffle ? How to fix it ? Using solidity compiler version - 0.5.9
1
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1answer
81 views

Solidity standard library: how to contribute?

I'd like to contribute to Solidity standard library, which seems a bit feature-less. How can I do that? Is there are some agreements about Solidity standard lib like in c++? I have implemented some ...
0
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1answer
115 views

How to identify the bytecode of a single function

I am trying to generate the bytecode for a single function. I need to avoid any setup/teardown that may occur in the contract as I am trying to get a precise measurement of the execution time in the ...
2
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2answers
2k views

How to deploy compiled contract file using the geth cli?

So I've followed the greeter contract tutorial from here to deploy a contract to my private cloud. It works fine and all, but it is rather difficult that I need to create a string from my contract and ...
0
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1answer
52 views

Why does solc output bytecode that is not in valid hex format?

I compile my solidity file using the following command: solc Encoder.sol --bin --abi --optimize -o <output_dir>/ Then I try to deploy it in Geth: Encoder = eth.contract([<abi file content&...
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0answers
12 views

What is EVM15 as a Solidity output target?

In the Solidity compiler help menu solc --help, I noticed that evm15 is one of the new compilation targets in addition to evm and ewasm. I know what ewasm stands for, but what's the difference between ...
0
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1answer
12 views

BrowserSolc not defined

I'm trying to use BrowserSolc in my dApp, but it's just not loading, it seems. I've got browser-solc.min.js in the same folder as index.html, with the following near the top of the page: <script ...
3
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2answers
267 views

Using two solc versions within the same truffle project

I am creating an app that has various imports that require two different versions of solidity. AragonOS(0.4.x) and openzeppelin(0.5.x) Of course, there are breaking changes in 0.5.x so my question is ...
1
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1answer
11 views

How to type cast fixed size byte arrays in solc 0.5.x?

In solc 0.4.28 I was able to do: uint foo = 42; bytes28 bar = bytes28(foo); but in 0.5.9 I'm getting the error: TypeError: Explicit type conversion not allowed from "uint256" to "bytes28". ...
3
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1answer
60 views

What are remappings and how do they work in solidity?

How can they be used with solc?
8
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1answer
488 views

What is the cryptic part at the end of a solidity contract bytecode?

Given the following contract: pragma solidity ^0.4.11; contract Simple { bytes32 public v; function set(bytes32 _v) { v = _v; } } When disassembling, neither remix, solc or evm ...
1
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0answers
50 views

Cannot execute contract in non-intaractive scripts

I want to deploy and to execute ERC-20 contract on geth with non-interactive scripts. But, it seems that non-interactive scripts and console shows different results. Enviroment ubuntu 18.04(docker ...
5
votes
2answers
613 views

Error: Member “assertNotEqual” not found or not visible after argument-dependent lookup in uint256

I am trying to run test cases in sol-unit for Solidity, but when I compile my code with solc compiler I get an error. I don't think the error is critical, but there is very little material on net ...
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0answers
116 views

Solidity Error: Cannot destructure property `interface` of 'undefined' or 'null'

I've got his error in Solidity when compiling my test file: TypeError: Cannot destructure property interface of 'undefined' or 'null'. I know it is related to my compile.js file, but what is ...
0
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1answer
161 views

How to use solc-js with Jest?

I can't compile solidity code in my Jest files, but without Jest it works fine. Here is a test file: const fs = require("fs") const solc = require("solc") describe("test", () => { test("", () =...
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0answers
54 views

How to achieve inheritance support using web3j wrapper?

I have two types of smart contracts. One parent contract to store the type and other child contracts which inherits the parent contract. The problem is, I can't generate java wrapper class (...
2
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2answers
298 views

How to compile solidity AST to binary code?

I want to do some automatic transformation of solidity source code. For this reason, I thought to get its AST representation using solc --ast or solc --ast-json and modify it. My questions are: ...
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2answers
46 views

Store/retrieve data doesn't work using node

i trying something simple, store and retrieve a data in a smart contract, but when i want to retrieve the data, nothing is returned. solc version is 0.4.24 web3 version is 1.2 Solidity code: pragma ...
5
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5answers
9k views

Solc --version: command not found

I'm trying to use solc with no success. I download solc with npm install solc but when I run solc --version the console output is: command not found. If I list packages npm list I'm able to see ...
2
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1answer
93 views

solcx compile_files Key error

I am using python package py-solc-x for compiling the smart contract. os.path.abspath("D:/new.sol") Gives path where my test contract exits. 'D:\\new.sol' Then i use compile_files to compile the ...

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