try lowercase hex string, it must help

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

Newton

Hey this message looks very confusing.
`GatewayError: {'contract_address': ['Expected hex string, got: "0x01C438231cD70f47d1acB8404E51734c1Fb4d79AC55813b3E861fB1EF78Da0D6".']}`

Any hints on this?

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

CairoLang error: `GatewayError: {'contract_address': ['Expected hex string, got: 

Does anyone know how I can create an array and populate it in the python hint?
Basically something like


```cairo
let (my_array: felt*) = alloc()
%{
  ids.my_array = [1, 2, 3]
%}
```


How can I create an array and populate it in the hint Cairo lang/Protostar?

How to get private key/mnemonic for account that been created using `deploy_account`?
or can i using existing 12 words mnemonic to create contract account?

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

How to get private key/mnemonic for account that been created using `deploy_account` [StarkNet]?

What will the bundler ecosystem look like in AA?

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What will the bundler ecosystem look like in Account Abstraction?

Hey! With starknetjs(4.15.1) I am trying to declare a contract on devnet(0.4.2) using one of  predeployed accounts:

```
const account = new Account(
  provider,    '0x33507ff2edf12c12c73d0b6d1d90de9fac12a355de1097ab305249612451919',
  ec.getKeyPair('0x1de9ea6670d3da1fc735df5ef7697fb9')
);
...
const response = await account.declare({contract, classHash})
```

In return I get:

```
     GatewayError: Error at pc=0:124:
Signature (190318159909676960154007463740407923762489366165178197276822367516441018681, 1481560316189074241501727945883196969140908548840364106059171525936237675551), is invalid, with respect to the public key 1739835831186746845112715264902076958080619051586179661985458614041125785393, and the message hash 1015445806423683747697120201561835375586563571781789449937604429244570518935.
Cairo traceback (most recent call last):
Unknown location (pc=0:615)
Unknown location (pc=0:600)
Unknown location (pc=0:245)
```


Declaring a StarkNet contract on DevNet with Account(), but I get GatewayError in StarkNetJS

hi, i used the starkgate bridge from stark to eth one hour ago. Withdrawal has not occurred yet. How many hours does the process take? My tx hash is: <address>cfa0c02d013658804505506

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

How many time does it take for stark to eth starkgate bridge process?

Why am I getting an `account __execute__` error message `ape_starknet.exceptions.StarknetProviderError: Can only send invoke transaction to an account execute method`?


ApeWorX: Why am I getting an "account __execute__" error message?

protostar is great ❤️ thanks! I'm confused about the deploy command. from which account does it deploy from? also are there no gas fees on goreli when you deploy?

I want to deploy a contract from my own argent wallet I would need to declare + sign a transaction
& I guess use the StarkCurveSigner. What are your thoughts?

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

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CairoLang error: `GatewayError: {'contract_address': ['Expected hex string, got:

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