Hey there! 

I am using the Oz Nile framework for smart contract development on Starknet. More specifically, I am testing the proxy upgrade feature, but my tests fail with the error message TypeError: int() can't convert non-string with explicit base. This happens when nile.signer tries to sign a transaction. Here's the snippet in the stack trace below. 

```
def sign_transaction(self, sender, calls, nonce, max_fee):
        """Sign a transaction for an Account."""
        (call_array, calldata) = from_call_to_call_array(calls)
        message_hash = get_transaction_hash(
>           int(sender, 16), call_array, calldata, nonce, int(max_fee)
        )
```

Some relevant info:
cairo-lang==0.10.0
cairo-nile==0.8.2
openzeppelin-cairo-contracts==0.4.0b
pytest==7.1.2
python=3.9 

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

Cairo/Nile: Testing the proxy upgrade feature, but my tests fail with the error message TypeError: int() can't convert non-string with explicit base.

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?

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Hi. I am seeing this error in my tests after upgrade.

```
(starknet-py) JediSwap % protostar test tests/test_deployment.cairo 
17:59:05 [INFO] Collected 1 suite, and 3 test cases (0.062 s)                                                                                                    
[UNEXPECTED_EXCEPTION] tests/test_deployment.cairo                                                                                                               
Traceback (most recent call last):
  File "protostar/commands/test/test_runner.py", line 98, in run_test_suite
  File "protostar/commands/test/test_runner.py", line 155, in _build_execution_state
  File "protostar/commands/test/environments/setup_execution_environment.py", line 38, in execute
  File "protostar/starknet/execution_environment.py", line 32, in perform_execute
  File "starkware/starknet/testing/contract.py", line 293, in execute
  File "starkware/starknet/testing/contract.py", line 303, in _execute_on_given_state
  File "protostar/starknet/cheatable_state.py", line 97, in execute_entry_point_raw
  File "starkware/starknet/testing/state.py", line 241, in add_messages_and_events
  File "starkware/starknet/business_logic/execution/objects.py", line 337, in get_sorted_events
IndexError: list assignment index out of range
```

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

StarkNet error while deploying: IndexError: list assignment index out of range. Can anyone help?

Is there any blockchain project contract supporting web2 scripts executable on VIa EVM?

I think it only one Tru (truebit)

Is there any blockchain project contract supporting web2 scripts executable on VIa EVM?

Hey everyone, is it possible to use argentx to sign in/authenticate user to a off-chain api/db

What I want to do is store some data off chain for each user(wallet)

I have seen that metamask/etherem has 'personal_sign' rpc method that can be used for something like this

Is there anything like this available in starknet ecosystem?

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

Is it possible to use ArgentX to sign in user to a off-chain api/db?

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