@dan-i hey so i was wondering what could be the issue.
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So I figured I enter my params in the migrations file:
This is what I receive on the terminal when migrating, is this correct?
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Hello! This is regarding the Multisig truffle assignment, I am a bit stuck here. It keeps giving me errors like "unexpected token: ’ [ ’ " , what can I improve on?
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Hi, it’s me again, this time around I can’t compile my MultiSigWallet Contract, it sends out different error messages but here’s the latest I received.
- Error Message
truffle(develop)> compile
Compiling your contracts...
===========================
<--- Last few GCs --->
[16616:0000017B8C2C67B0] 2703 ms: Scavenge 123.6 (140.4) -> 117.7 (147.9) MB, 11.4 / 0.0 ms (average mu = 1.000, current mu = 1.000) allocation failure
[16616:0000017B8C2C67B0] 3104 ms: Scavenge 127.3 (152.6) -> 123.9 (155.8) MB, 6.3 / 0.0 ms (average mu = 1.000, current mu = 1.000) allocation failure
<--- JS stacktrace --->
FATAL ERROR: wasm code commit Allocation failed - process out of memory
truffle(develop)>
- Here’s my migration file
const MultiSigWallet = artifacts.require("MultiSigWallet");
module.exports = function (deployer, network, accounts[]) {
var sigRequired = 2;
deployer.deploy(MultiSigWallet, ['0x6EF694F14D5633eFfE6190eF56BBCDBb6BC7560C',
'0x2C202FFc76A4E0440a10735d706747a768f7F17d','0xFaA0734ab190D1B5C3eF428f7aedE11Be2b8AE46',
'0xC4c838CBE714dEAae536DBE11886eBECe53864B7',], sigRequired);
};
Thank you devs!
Hey @Javier_Flores
It really does not matter which compiler you are going to use, just pick one 0.7 or higher.
Also you have to keep in mind that the version used needs to be compatibile with all the inherited contracts (for example if you import libraries from Openzeppelin).
Feel free to refer to this guide if you need help to change Truffle version: FAQ - How do change truffle version
If you still face an issue, please post the error message here and I will take a look 
Happy coding,
Dani
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Sorry @inzhagey I totally missed your question!
npm install -g truffle --force did not work.
This one fails because it does not have the right access to your files.
Run sudo npm i -g truffle
Cheers,
Dani
1 Like
Hey @cecilia
There is a syntax error.
You can either:
deployed.deploy(Wallet, [0x00000000,0x000000000],2);
or
const addresses = [0x000000,0x000000];
const limit = 2;
deployed.deploy(Wallet, addresses, limit);
Cheers,
Dani
Hey @bjamRez
Your code works, you just have to keep in mind that these calls are async so you should use await or promises.
const instance = await Wallet.deployed()
await instance.deposit({value: web3.utils.toWei('1', 'ether') } )
const res = await instance.getWalletBalance()
Now as discussed the number you get back is always a BigNumber, you just have to parse it:
console.log(parseInt(res))
Cheers,
Dani
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thanks that make it work!
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It’s telling me:
Error: Truffle is currently using solc 0.5.16, but one or more of your contracts specify “pragma solidity 0.8.0”.
Please update your truffle config or pragma statement(s).
(See https://trufflesuite.com/docs/truffle/reference/configuration#compiler-configuration for information on
configuring Truffle to use a specific solc compiler version.)
what should I do @dan-i
He Guys,
I’m having an issue with interacting with the ERC20 contract once the Ownable contract is added. My code below is slightly different from the video as openzeppelin is having an issue with the compiler so this is the current workaround.
//SPDX-License-Identifier: MIT
pragma solidity ^0.8.0;
import "../node_modules/@openzeppelin/contracts/token/ERC20/extensions/ERC20Capped.sol";
import "../node_modules/@openzeppelin/contracts/access/Ownable.sol";
contract MyToken is ERC20Capped , Ownable {
constructor(uint256 initialSupply) ERC20("MyToken", "MKTN") ERC20Capped(10000){
ERC20._mint(msg.sender, initialSupply);
}
}
When I use the terminal I get the following error…
truffle(develop)> compile
Compiling your contracts…
Everything is up to date, there is nothing to compile.
- Fetching solc version list from solc-bin. Attempt #1
truffle(develop)> let instance = await MyToken.deployed()
undefined
truffle(develop)> instance.owner()
Uncaught:
Error: Returned values aren’t valid, did it run Out of Gas? You might also see this error if you are not using the correct ABI for the contract you are retrieving data from, requesting data from a block number that does not exist, or querying a node which is not fully synced.
at evalmachine.:0:10
at sigintHandlersWrap (node:vm:271:12)
at Script.runInContext (node:vm:139:14)
at runScript (/opt/homebrew/lib/node_modules/truffle/build/webpack:/packages/core/lib/console.js:270:1)
at Console.interpret (/opt/homebrew/lib/node_modules/truffle/build/webpack:/packages/core/lib/console.js:285:1)
at bound (node:domain:416:15)
at REPLServer.runBound [as eval] (node:domain:427:12)
at REPLServer.onLine (node:repl:844:10)
at REPLServer.emit (node:events:369:20)
at REPLServer.emit (node:domain:470:12)
at REPLServer.Interface._onLine (node:readline:418:10)
at REPLServer.Interface._line (node:readline:763:8)
at REPLServer.Interface._ttyWrite (node:readline:1108:14)
at REPLServer.self._ttyWrite (node:repl:936:9)
at ReadStream.onkeypress (node:readline:259:10)
at ReadStream.emit (node:events:369:20)
at ReadStream.emit (node:domain:470:12)
at emitKeys (node:internal/readline/utils:358:14)
at emitKeys.next ()
at ReadStream.onData (node:readline:1242:36) {
hijackedStack: “Error: Returned values aren’t valid, did it run Out of Gas? You might also see this error if you are not using the correct ABI for the contract you are retrieving data from, requesting data from a block number that does not exist, or querying a node which is not fully synced.\n” +
’ at ABICoder.decodeParameters (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3-eth-abi/src/index.js:332:1)\n’ +
’ at Contract._decodeMethodReturn (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3-eth/node_modules/web3-eth-contract/src/index.js:572:1)\n’ +
’ at Method.outputFormatter (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3-eth/node_modules/web3-eth-contract/src/index.js:932:1)\n’ +
’ at Method.formatOutput (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3-eth/node_modules/web3-core-method/src/index.js:169:1)\n’ +
’ at sendTxCallback (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3-eth/node_modules/web3-core-method/src/index.js:640:1)\n’ +
’ at /opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3/node_modules/web3-core-requestmanager/src/index.js:177:1\n’ +
’ at /opt/homebrew/lib/node_modules/truffle/build/webpack:/packages/provider/wrapper.js:107:1\n’ +
’ at XMLHttpRequest.request.onreadystatechange (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/web3/node_modules/web3-providers-http/src/index.js:111:1)\n’ +
’ at XMLHttpRequestEventTarget.dispatchEvent (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/xhr2-cookies/dist/xml-http-request-event-target.js:34:1)\n’ +
’ at XMLHttpRequest.exports.modules.996763.XMLHttpRequest._setReadyState (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/xhr2-cookies/dist/xml-http-request.js:208:1)\n’ +
’ at XMLHttpRequest.exports.modules.996763.XMLHttpRequest._onHttpResponseEnd (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/xhr2-cookies/dist/xml-http-request.js:318:1)\n’ +
’ at IncomingMessage. (/opt/homebrew/lib/node_modules/truffle/build/webpack:/node_modules/xhr2-cookies/dist/xml-http-request.js:289:47)\n’ +
’ at IncomingMessage.emit (node:events:381:22)\n’ +
’ at IncomingMessage.emit (node:domain:532:15)\n’ +
’ at endReadableNT (node:internal/streams/readable:1307:12)\n’ +
’ at processTicksAndRejections (node:internal/process/task_queues:81:21)’
}
If anyone could get back to me, that would be great
Hi @dan-i
It still says the same, it’s written in German though but I will still post it.
I need to say that I can compile in the terminal window only not in VSC.
Thanks so much Dani - I forget that we are also using JavaScript with Truffle - thanks again.
I found a solution to my problems, turns out that I just forgot to include
pragma abicoder v2;
at the start 
Hi Dani, this was working fine but had to close my session on VS Pro and when I re-opened the same file, I could not get the getWalletBallance() call to work again. I am now getting these errors:
truffle(develop)> let res = await instance.getWalletBalance()
Uncaught:
Error: Returned values aren’t valid, did it run Out of Gas? You might also see this error if you are not using the correct ABI for the contract you are retrieving data from, requesting data from a block number that does not exist, or querying a node which is not fully synced.
at evalmachine.:1:18
at evalmachine.:2:49
at sigintHandlersWrap (vm.js:273:12)
at Script.runInContext (vm.js:140:14)
at runScript (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\console.js:270:1)
at Console.interpret (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\core\lib\console.js:285:1)
at bound (domain.js:413:15)
at REPLServer.runBound [as eval] (domain.js:424:12)
at REPLServer.onLine (repl.js:817:10)
at REPLServer.emit (events.js:315:20)
at REPLServer.EventEmitter.emit (domain.js:467:12)
at REPLServer.Interface._onLine (readline.js:337:10)
at REPLServer.Interface._line (readline.js:666:8)
at REPLServer.Interface._ttyWrite (readline.js:1010:14)
at REPLServer.self._ttyWrite (repl.js:907:9)
at ReadStream.onkeypress (readline.js:213:10)
at ReadStream.emit (events.js:315:20)
at ReadStream.EventEmitter.emit (domain.js:467:12)
at emitKeys (internal/readline/utils.js:345:14)
at emitKeys.next () {
hijackedStack: “Error: Returned values aren’t valid, did it run Out of Gas? You might also see this error if you are not using the correct ABI for the contract you are retrieving data from, requesting data from a block number that does not exist, or querying a node which is not fully synced.\n” +
’ at ABICoder.decodeParameters (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3-eth-abi\src\index.js:332:1)\n’ +
’ at Contract._decodeMethodReturn (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3-eth\node_modules\web3-eth-contract\src\index.js:572:1)\n’ +
’ at Method.outputFormatter (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3-eth\node_modules\web3-eth-contract\src\index.js:932:1)\n’ +
’ at Method.formatOutput (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3-eth\node_modules\web3-core-method\src\index.js:169:1)\n’ +
’ at sendTxCallback (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3-eth\node_modules\web3-core-method\src\index.js:640:1)\n’ +
’ at C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3\node_modules\web3-core-requestmanager\src\index.js:177:1\n’ +
’ at C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\packages\provider\wrapper.js:107:1\n’ +
’ at XMLHttpRequest.request.onreadystatechange (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\web3\node_modules\web3-providers-http\src\index.js:111:1)\n’ +
’ at XMLHttpRequestEventTarget.dispatchEvent (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\xhr2-cookies\dist\xml-http-request-event-target.js:34:1)\n’ +
’ at XMLHttpRequest.exports.modules.996763.XMLHttpRequest._setReadyState (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\xhr2-cookies\dist\xml-http-request.js:208:1)\n’ +
’ at XMLHttpRequest.exports.modules.996763.XMLHttpRequest._onHttpResponseEnd (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\xhr2-cookies\dist\xml-http-request.js:318:1)\n’ +
’ at IncomingMessage. (C:\Users\benX\AppData\Roaming\npm\node_modules\truffle\build\webpack:\node_modules\xhr2-cookies\dist\xml-http-request.js:289:47)\n’ +
’ at IncomingMessage.emit (events.js:327:22)\n’ +
’ at IncomingMessage.EventEmitter.emit (domain.js:529:15)\n’ +
’ at endReadableNT (internal/streams/readable.js:1327:12)\n’ +
’ at processTicksAndRejections (internal/process/task_queues.js:80:21)’
Hi @inzhagey,
I had the same problem and I uncommented version and updated to the version I’m using and it worked.
3 Likes
yay it worked, thank you!
1 Like
I’m glad I could help !
1 Like