Yes, Kakarot is currently built on top of Starknet, and every Kakarot transaction is a transaction on Starknet.

# Is Kakarot part of the Starknet ecosystem?

Elias Tazartes (Eikii)

Is Kakarot part of the Starknet ecosystem?

Any nft marketplace has launched on starknet L2?

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Any NFT marketplace has launched on starknet L2?

I got an error while deploying:
`{"code": "StarknetErrorCode.DEPRECATED_TRANSACTION", "message": "Deploy transaction is no longer supported."}`

Umm, cairo playground does not support deploying contracts anymore

What is the most user-friendly way to deploy contracts on starknet for now?

StarknetErrorCode.DEPRECATED_TRANSACTION while deploying StarkNet contract

# Hello starknet fam!

I heard with the last release of protostar it is now possible to make multiple call to different contracts functions in one protostar invoke CLI.

Can someone show me a good exemple on how to use it?

Like multicall with approve and swap.

Thank you very much!

How to use multicall with protostar 0.9.0?

Hello, Starknet will do Final State Reset around Q4 2022.    It means users need to create new wallet address & migrate asset to new wallet.   Old wallet address will be no longer usable after final state reset.     Is this correct?

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

Will StarkNet wallets work after Q4 2022 Final State Reset? Or do I need to create and merge a new wallet?

Since memory cannot be freed, what's the drawback of only using local variables (to avoid revoked refs)? What's the typical use case for tempvars?


ㅤ
_This question was originally posted on [Triality](https://triality.org/question/512)_

Cairo: When do you use tempvar and when do you use local


Hello! This is day 16 of the 17 days of the Cairo Challenge. In this exercise it is required to submit your first StarkNet contract. When you try to make it, you get an error:

```solidity
Error: code:20:1: Unsupported %lang directive. Are you using the correct compiler?
%lang starknet
^************^
```

Can you show your solution to [playground](https://www.cairo-lang.org/playground/) exercise “StarkNet contract” and also send a link to your contract, and a screenshot where you use your `add` method?

```solidity
// [StarkNet](https://starkware.co/product/starknet/) is a permissionless decentralized ZK-Rollup operating
// as an L2 network over Ethereum, where any dApp can achieve
// unlimited scale for its computation, without compromising
// Ethereum's composability and security.
//
// This is a simple StarkNet contract.
// Note that you won't be able to use the playground to compile and run it,
// but you can deploy it on the [StarkNet Planets Alpha network](https://medium.com/starkware/starknet-planets-alpha-on-ropsten-e7494929cb95)!
//
// 1. Click on "Deploy" to deploy the contract.
//    For more information on how to write Cairo contracts see the
//    ["Hello StarkNet" tutorial](https://cairo-lang.org/docs/hello_starknet).
// 2. Click on the contract address in the output pane to open
//    [Voyager](https://goerli.voyager.online/) - the StarkNet block explorer.
// 3. Wait for the page to load the information
//    (it may take a few minutes until a block is created).
// 4. In the "STATE" tab, you can call the "add()" transaction.

// The "%lang" directive declares this code as a StarkNet contract.
%lang starknet

@view
func add(x: felt, y: felt) -> (res: felt) {
    return (res=x + y);
}
```

---

> Answers to this question are a part of the ✨ 17 days of Cairo Lang with Playground & Newton. ✨
> 

*Vote for your favorite answer - the best answer will win a $10 award. A new day – a new reward! During the next 17 days, our goal is to attract more developers to the Cairo language and to systematize the knowledge of Cairo lang. [Read rules](https://www.notion.so/17-days-of-Cairo-Lang-with-Newton-550dfcda6a2d449ca468be293c776578)*

How to submit a StarkNet contract?

I use `ec.getKeyPair("copy paste from argent x")` to initialize the account however i get the response is invalid, with respect to the public key

_This question was originally posted on [StarkNet Discord](https://www.newton.so/view?tags=discord)_

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Is Kakarot part of the Starknet ecosystem?

Is Kakarot part of the Starknet ecosystem?

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