Questions tagged [solc]
Questions related to the compiler for Solidity: solc
204
questions
1
vote
0answers
23 views
Cannot read property 'type' of undefined - abi-coder
I'm creating a simple voting contract.
It is deployed with truffle and infura.
This is the contract code:
pragma solidity >=0.4.21 <0.6.0;
contract Voter {
struct OptionPos {
uint ...
0
votes
1answer
23 views
cannot “npm install -g truffle” in PowerShell - #ERROR (cannot find module 'original-require')
What's this error? How can I resolve
0
votes
0answers
25 views
compile_files gives errror for given path of the contract [duplicate]
pragma solidity ^0.5.1;
import "./Owned.sol";
contract Greeter is Owned {
bytes32 public greeting;
event GreetingChange (
address indexed changer,
bytes32 indexed _from,
...
1
vote
0answers
25 views
Gas usage difference between Remix and Ganache/public networks
I'm trying to integrate a contract into a front end with MetaMask and getting different gas amounts depending on the network and compile options I use.
Remix ("Enable Optimization" checked): 90,410
...
1
vote
1answer
69 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
votes
1answer
40 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 ...
0
votes
0answers
37 views
Why am I getting the error "Expected pragma, import directive or contract/interface/library definition?
I have "pragma solidity ^0.5.9" at the start of the file yet I still get this error.
Listing.sol:1:1: ParserError: Expected pragma, import directive or contract/interface/library definition.
...
0
votes
1answer
38 views
extract address of used library
Is there anyway or method to extract the address of a linked library from the contract bytecode (not a verified contract code) or deployment transaction?
my question is about step 3:
step 1. ...
0
votes
0answers
38 views
Solc complier error “TypeError: Cannot read property 'TestToken.sol' of undefined”
I set up a contract with three files referring to Token Factory.
I make a test on remix online tool, they can be successfully compiled.
when I'm tring to compile them by solc module in a .js file, ...
1
vote
2answers
77 views
Can't deploy contract with web3.js and ganache-cli
I'm using the solc module to compile a Solidity contract. The compilation step looks to be working correctly, however, when I attempt to deploy the contract to the Ganache network (in a Mocha test), ...
1
vote
0answers
28 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....
1
vote
0answers
18 views
What is the value range of the parameter optimize-runs when running the solidity compiler?
I would like to know what the allowed value range of the parameter optimize-runs is when running the Solidity compiler. I didn't find the answer in the official document of Solidity.
1
vote
0answers
21 views
How to verify a contract in etherscan older than 0.4.11?
It seems that the verification feature of Etherscan supports contracts written since Solidity 0.4.11.
I want to verify a contract written with Solidity 0.4.8. Is this possible?
I'm wondering if this ...
0
votes
0answers
33 views
Compile two .sol file with solc
I'm trying to compile two different sol file with 1 smart contract each and output the compiled code of each one in two different json file. But when i run the code the .json file return empty, i dont ...
0
votes
1answer
23 views
Why is the data from remix different from that from my computer when compiling the same contract using the same version of solidity complier? [closed]
I downloaded the 0.5.7+commit.6da8b019 version of solidity compiler, compiled an ERC20 contract locally using the compiler, and got the binary data. Then I also copied the ERC20 contract and pasted it ...
0
votes
0answers
31 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 ...
0
votes
2answers
208 views
Solc error invalid opcode, but works in truffle
I am trying to compile solidity code in solc(nodejs) but unsuccessful so far.
I have created a sample app for demo.
Here is sample's directory structure (node.js and truffle combined):
│ app.js
│ ...
1
vote
2answers
190 views
invalid opcode “0x1c” during smart contract method execution
I have written a smart contract to test event from java project using web3j
I have prepared the web3j wrapper java class using solc compiler version
"0.5.7+commit.6da8b019.Linux.g++"
I am using a ...
2
votes
1answer
390 views
Timeout exceeded during the transaction confirmation process
I am trying to figure out the right syntax for solc 0.5.7 and web3 1 beta 52
Follow my source code:
contract.sol
pragma solidity ^0.5;
contract Hello {
string public message;
constructor (...
0
votes
3answers
64 views
Truffle and Remix compiles differently
I have a smart contract that outputs a different bytecode when compiled with truffle, and with remix, even though both seem to use the same compiler version: 0.5.7+commit.6da8b019 Is that a known ...
0
votes
1answer
59 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
vote
1answer
88 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",
...
0
votes
1answer
22 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 =...
1
vote
1answer
82 views
Solc: Build from source code failed. Error: ‘mod’ is not a member of ‘z3’
I tried to build solidity compiler (solc) from source code, which was cloned from Solidity Git Repository. I followed the instructions in Solidity Documentation, but I ran into an error when execute: ...
1
vote
1answer
128 views
HDWalletProvider & truffleconfig: 'truffle migrate' will compile but not do anything else
I am trying to build a React app with Truffle. Firstly, my file structure is like so, with root_dir being the project root directory:
root_dir/node_modules/src/libs/truffle
All of truffle's files, ...
0
votes
1answer
73 views
I am getting solc error while compiling solidity code via py-solc. Is it due tonew update of py-solc ? how to fix it?
from . import views
File "/home/manzik/Desktop/Ethereum Voting/voting/home/views.py", line 5, in
import commission.views as comm
File "/home/manzik/Desktop/Ethereum Voting/voting/commission/...
0
votes
2answers
71 views
No such file or directory: 'solc': 'solc'
I have been trying to follow the following tutorial
[https://github.com/adamyala/Your_First_Decentralized_Application_Python]
But the following error occurs:
I have followed all the steps in ...
0
votes
0answers
16 views
Unexpected behaviour. Huge size increase when adding new SubContract()
I have a contract similar to:
contract Contract01 {
SubContract _refContract;
...
constructor() public {
refContract = new SubContract();
}
function setSubContractRef(SubContract ...
0
votes
0answers
26 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 ...
2
votes
0answers
53 views
Why truffle deploy fail with address value=0 after I upgrade to version 5.0.5?
I have a truffle 2_deploy_contracts.js something like this :
const sample = artifacts.require('./Sample.sol');
module.exports = function(deployer) {
deployer
.then(()=>deployer.deploy(...
1
vote
1answer
289 views
How to compile solidity files in nodejs using solc@0.5.4? [duplicate]
I am using node@10.14.2 and solc@0.5.4 to compile solidity files using the following code:
var solc = require('solc');
var input = {
language: 'Solidity',
sources: {
'Bon.sol':{
content:...
1
vote
2answers
300 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 ...
2
votes
1answer
59 views
UnimplementedFeatureError: Only byte arrays can be encoded from calldata currently
I received the error message UnimplementedFeatureError: Only byte arrays can be encoded from calldata currently from the compiler, but without any reference to a file or line.
In a big project, and ...
2
votes
1answer
121 views
What is the behavior of solc with optimizer disabled?
When enabling the optimizer the documentation of solc tells you that you can choose between optimizing the gas cost at deployment or the gas cost at execution by setting the runs parameter.
But what ...
1
vote
1answer
194 views
Importing in SOLC to deploy smart contract
I don't run an Ethereum framework like Truffle and I want to deploy a smart contract using infura node.
The smart contract is very simple:
pragma solidity ^0.5.2;
import "http://github.com/...
0
votes
1answer
286 views
Upgrading to solidity version 0.5.0 getting deployment failed error with same smartcontract perfectly deployed on 0.4.24
The same smart contract is running smoothly in solidity version 0.4.24 but now when I update the solidity version and solving a lot of bugs inside my smart contract I intended to deploy that in ...
0
votes
0answers
42 views
Why the same contract has more bytecode size in solidity 0.5 in compare to 0.4.24?
My earlier contract was compatible with solc@0.4.24. Now I am upgrading my contract to make it compatible with solidity 0.5 but it leads to an increase in bytecode size. AFAICT There is no change in ...
2
votes
1answer
610 views
Switch solc compiler versions
I have solc v0.5.2 on my system, but I have several contracts, that require solc < v0.5, so that I get errors:
Error: Source file requires different compiler version
What is the best way to run ...
1
vote
0answers
14 views
Compile Solidity on openbsd
i have tried several branches and all fails, has anyone got this working on openbsd?
an issue has been created on github about this aswell
https://github.com/ethereum/solidity/issues/5728
0
votes
0answers
44 views
solc/wrapper not working with reactjs
My compile.js code:
var wrapper = require('solc/wrapper')
var solc = wrapper(window.Module)
const Compile = (code,name) => {
return solc.compile(code, 1).contracts[':'+name];
};
export default ...
0
votes
1answer
513 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
votes
1answer
291 views
Solc compile contracts with 5.0.0 [duplicate]
I was following this guide for compiling my contracts How To: Compile a Solidity Smart Contract Using Node.js but "solc.compile(input, 1)" is not working anymore. I have problems understanding how to ...
1
vote
0answers
33 views
Web3JS throws InvalidResponse without Ganache core ever receiving a request?
Versions:
Ubuntu 18.04 LTS
Node.JS: 8.3.0
WebJS:
web3: ^1.0.0-beta.37
web3-utils: ^1.0.0-beta.36
npm: 5.6.0
Truffle version 5.x (latest)
I have traced through the HttpProvider code in the Web3 ...
1
vote
1answer
114 views
“Cannot import url”, “File outside of allowed directories” using --standard-json
I'm trying to understand how to use solidity's JSON input-output API. Here's my json file;
{
"language": "Solidity",
"sources": {
"StandardToken.sol": {
"urls": [
"file:///home/...
2
votes
1answer
185 views
Recently upgraded Solc and Web3. Transactions with zero addresses now reverting with “invalid address” message?
I recently upgraded Web3JS and Solc. Now every time I pass a zero address to a Solidity contact method the transaction reverts with an "invalid address" message. This message appears to be coming ...
2
votes
2answers
486 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. ...
2
votes
1answer
33 views
What about calls you can do safely in constructor?
As a matter of fact, there is more than one discussion about what are the call you can safely do in the constructor.
Someone thinks “avoid all external call”, some other says “avoid to use ‘this’ or ...
3
votes
1answer
40 views
SOLIDITY: is anywhere formalized the assignment operator behaviour in nested statements?
As a matter of fact, solidity seems to have same behaviour of C in nested assignment.
I.e. running the sample test contract below, calling nestedSum(1) results in the following: a=38, b=16, c=4
...
2
votes
1answer
707 views
I got error when npm install -g solc [closed]
I got error when try to install solc using
npm install -g solc
here is the error:
erfans-MacBook-Pro:01 erfanandesta$ npm uninstall -g solc
npm WARN checkPermissions Missing write access to /usr/...
1
vote
1answer
571 views
How to access string arguments from calldata in external functions? (0.5.X)
With the introduction of Solc 0.5.X , parameter memory locations for arrays (and strings/bytes) must be made explicit. For external functions, this memory location is required to be specified as ...
