Hi guys
I am stuck I can't solve an error I have on Remix
I don't understand, yesterday it seemed to work and today I have an error message...
I am trying to deploy a contract or Arbitrum Goerli or Arbitrum. Using adapted Camelot Router/Factory
I have this error message on both transactions:

Gas estimation errored with the following message (see below). The transaction execution will likely fail. Do you want to force sending?
Returned error: {"jsonrpc":"2.0","error":"invalid opcode: PUSH0","id":6119467112710341}

Anyone knows something about that please ? 🙏🙏

are you using 0.8.20 ?

Yes

I shouldn't?

not on those chains

they don't support PUSH0 yet

only eth mainnet does

so use 0.8.19

What is PUSH0 ?

https://blog.soliditylang.org/2023/05/10/solidity-0.8.20-release-announcement/

It's working, thanks mate 🙏

using SafeERC20 for IERC20
IERC20 private immutable WETH

Using the SafeERC20 wrapper, shouldn't I be able to call safeTransferFrom()?

just a new shortcut to make deployments a bit cheaper

An opcode

It pushes 0 into a stack, before it you had to use PUSH1 00 which are 2 bytes (6000) now you reach the same with PUSH0 (5f)

Anyone 🥲

Okok I see, thanks 💪

moralis?

where'd you read that?

in sol docs?

i just know😅

push0 is available only on eth mainnet for now

since 2021?

what?

The date, this opcode's been used

nope

https://iq.wiki/wiki/eip-3855

thx

ah, it was discussed in 2021, implemented now

yep

with shangai

you have v2 too

the address is the same of mainnet
0x7ac..

yeah ofc

I assumed you were talking about feeless tokens since you said you are using v3

yeah my mistake i haven't read the full docs before testing on v3, since i could not find the testnet for v2 i went ahead with it

guys I highly suggest to check http://rabby.io/

Does it support gasless tx?

@minefolelser https://vxtwitter.com/msolomon44/status/1656411871635972096?t=edzyEuG_XvYyJxsnCoeCCQ&s=19

never tried

1inch supports gasless swap

yes I mean with this wallet
i just started using it

As long as you can sign a message

Idk, gasless tx should be a feature for wallets

exactly

Thanks!

it is like metamask but OP

Which one

Rabby

Use sepolia

Another testnet with more generous faucets and less expensive gas fees

Enough with this airdrop bs

Use your airdrop hunters groups for that

not for airdrop hunting, but ok I get it

y'all busy

Have u read the group rule?

a chain?

lol

show me please

This is annoying, people should learn to rely on others as last resource especially for bs like that

well I thought I will get alteast a little help

for?

like and retweet? I don't see any help needed

engagements🤡

Airdrop

try and see what will happen😒

I wont

The airdrop hunters should get a job, they spam everywhere

not hunting, for own memecoin project attempt twitter handle

What are the utilities?

A simple Blog and Profile NFTs

I just said sepolia chain

No utilities

NFT-Fi , NFT can be used to store the token (fee on that), and when staking the NFTs apy will be boosted according to the stored value

but yeah it doesnt go with you guys's views, as the token have a small tx fee

And where are these apys coming from?

token tax

and the collateral adding fee

haha lol when thinking clearly it looks like a ponzi plan

My view is pretty straight forward,
Create better projects with good utilities and no tx fee,
It'd benefit everyone
But the current ecosystem is full of shitcoins

I have a project in mind from quite a long time, but I lack the funds and management skills needed to do so, that's why thought of trying to launch a memecoin as those are cheaper to launch and manage with less things/goals to attend to then a serious project... and get the initial funds needed to do to....

My main project plan is a Culture Based project with aim to represent my local Assamese culture through the crypto ecosystem

well thats all, I'd Appreciate any help and I have no intention to scam or get rich quick, just to get enough funds to smoothen that process as well as gain some actual market/launcing experience.

Sounds interesting but can't tell how successful it would be

Yes, Crypto is lacking cultural representation

all shit everywhere

I am not worried about the success of that project now, even if it fails to get massive attetion, atleast being able to launch it without problems would atleast ensure the representation of Assam

have you ever thought about integrating on an already existing project as a developer to gain experience before launching yours?

I tried but I do not have that much connections or Skills and Expertise , Also I am still a beginner on Web Development as a whole that's why a simple doable project like a memecoin would give me a whole lot of valuable experience

well thanks and I really appreciate for the talk and the time to listen to the problem, but I don't mind if you guys dont wanna like and Rt I understand as I also have my ideals and views and I respect yours. Bye gotta go

yep, just remember this is a solidity group =)

it's ok to go off-topic for a little but a twitt is totally out of the scope for that group

😃I am banned from most crypto related groups due to my nature to spam and critisize projects

okay noted ✅

let's keep that list as it is then

P2PLending.length (set = null)=>(3)
P2PLending._length (set = null)=>(3)


P2PLending.at(set = null, index = 0)=>(0x6586aaaf9ce2ee33c84049bf97702fbba4390dc2)
P2PLending._at(set = null, index = 0)=>(0x0000000000000000000000006586aaaf9ce2ee33c84049bf97702fbba4390dc2)

P2PLending.remove(set = null, value = 0x6586aaaf9ce2ee33c84049bf97702fbba4390dc2)=>(true)
P2PLending._remove(set = null, value = 0x0000000000000000000000006586aaaf9ce2ee33c84049bf97702fbba4390dc2)=>(true)


P2PLending.at(set = null, index = 1)=>(0xc2503240d0a8beb0d94a7f67220bc8858cf43c33)
P2PLending._at(set = null, index = 1)=>(0x000000000000000000000000c2503240d0a8beb0d94a7f67220bc8858cf43c33)

P2PLending.remove(set = null, value = 0xc2503240d0a8beb0d94a7f67220bc8858cf43c33)=>(true)
P2PLending._remove(set = null, value = 0x000000000000000000000000c2503240d0a8beb0d94a7f67220bc8858cf43c33)=>(true)


P2PLending._at(set = null, index = 2)=>()
REVERT
P2PLending._at(0x)=>()

This is from Tenderly
My contract function failure seems to be coming from the EnumerableSet data

At index 2, apparently, there is no address
I don't know how that happened or something

no useful info in there, send the tx hash

https://mumbai.polygonscan.com/tx/0x19ce9ea08cc233efbb9c54ba1f5f1f2a71a7036e2bc3f01f19ef907f1ad5f733

hardhat comes latter , well yeah remix vm is also free and easy for beginners

he is not refering to remix or hardhat lol

seems something wrong with your loop

issue is the set

it fails at "_at"

It's what I shared too
There seems to be nothing at index 2

P2PLending._at(set = null, index = 2)=>()
REVERT
P2PLending._at(0x)=>()

Nothing seems stored at index 2. Which should be impossible 😕

that's the inner revert, the problem is not in the _at itself, it goes out of index i guess

hehe he is using goerli, just what tutorials told him to

yep I meant that there is some issue with his set
probably missing value

It is missing a value at index 2
But this value was set, and should be present
@lIIIIlIlIlIlII raised a good point
I don't know if it's valid?

but hate is only for scammers

web3 development pays well, specially with experience

money will come automatically

please send me some goerli eth

😝😝

hahaha yes thh

then you get rich on goer,i

I'll take mainnet eth, if you don't have

goerli

just look at ever shit memecoin that make 100x

early in late out

okok let's go
Solidity Dev chat here

That's pretty much against the group policy

/warn stop please

User Champion has 2/3 warnings; be careful!
Reason:
stop please

@FreezyEth

I am out now

try and see no?

no better way to learn

try -> make an error-> repeat

Will do boss 🙇🏾‍♂️

Error Driven Development 👍

2nd language I learnt after C

Been a long time I did something worthwhile with the language though

yea

I also like having versatility

Just so y'all know, I'm a farmer 😌
Studied Animal Production 😑
I'm here for the tech 😁

Farming is a great business, programming is depressing

At least you don't have to debug for days or weeks

In a country like Nigeria with no government incentives, favorable conditions, available resources, one will need to expand the idea

One little pest incursion destroys months of hard work 🥲

Going off topic 🥲

yah you do the most important job, produce food

Learning yield farming must be easy af then

agreed, the debugging , specially when learning really gets depressing

wagmi or foundry?

Ik both, but what is foundry chain

That idk

BSC too

And test using that

Thanks

You welcome 😄

local network

I fork mainnet with anvil

On foundry?

the chain is then exposed on the anvil default port
so just add the rpc to the wallet

anvil is part of foundry yes

Oh ok

do you have foundry installed?

No man. I use hardhat. But I'll install it

ah ok nvm

Do u prefer foundry over hardhat

for hardhat follow krakovia message

depends on the case

for wagmi, I choose foundry because Paradigm is behind both

Okay

We really do learn every day 🙂
@lIIIIlIlIlIlII thanks for the input

screenshot please

what to do when a contract exceeds the byte limit?

I'm confused how libraries can help in that, won't it be same?

enable optimization

and how to set thay up, I mean how to set the runs

what do you mean?

I mean by default Solidity optimizes to 200 runs, what exactly does that mean, and what to set there if the contract size exceeds limit

you exceedrd the size with optimization on?

yes, it's the default values

isn't it bt default 200 runs?

btw the higher you set, the higher you will pay at deployment, but lower will be the gas usage

yes just leave it if you don't plan to have milions of tx

oh