Error: JSON-RPC error: code=-32602, message="Invalid params", data={"reason":"expected value at line 1 column 754"}

[2klonghua]

Calling starkli declare target/dev/contracts_Simple_storage.contract_class.json --rpc .... --account .. --keystore

Investigate it further using the --log-traffic and it looks like these params are expected when calling "starknet_estimateFee":

"entry_points_by_type": {
      "CONSTRUCTOR": [],
      "EXTERNAL": [],
      "L1_HANDLER": []
},

[xJonathanLEI]

Hey can you check what spec version your RPC endpoint is serving? starkli spec-version.

[2klonghua]

0.6.0

[xJonathanLEI]

Would you mind posting the content of target/dev/contracts_Simple_storage.contract_class.json so I can reproduce the issue?

[2klonghua]

Here is the original lib.cairo:

Code: `

[starknet::contract]

mod Simple_storage {

#[storage]
struct Storage {
    value: felt252,
}

fn set_value(ref self: ContractState, value: felt252) {
    self.value.write(value);
}

fn get_value(self: @ContractState) -> felt252 {
    self.value.read()
}

} `

I compile it using scarb build, and generate the following json: Result: {"sierra_program":["0x1","0x4","0x0","0x2","0x5","0x4","0x1","0xff","0x0","0x4","0x0"],"sierra_program_debug_info":{"type_names":[],"libfunc_names":[],"user_func_names":[]},"contract_class_version":"0.1.0","entry_points_by_type":{"EXTERNAL":[],"L1_HANDLER":[],"CONSTRUCTOR":[]},"abi":[{"type":"event","name":"contracts::Simple_storage::Event","kind":"enum","variants":[]}]}%

Sorry for the formatting

[xJonathanLEI]

I just tried declaring this exact class on Sepolia using Starkli and it works. Transaction hash: 0x06bf7c26f81dafa1d9ab4b36fabd75bb05806f967dad268d5d0e729dfc520020.

Are you using the latest Starkli version? If so can you post the complete --log-traffic logs?

(You might need to do some renaming on the contract to be able to declare it again, as the network doesn't allow declaring the same class twice)

[2klonghua]

Resolved

[2klonghua]

If it helps, my Scarb.toml configuration are as follows:

` [package] name = "contracts" version = "0.1.0"

[dependencies] starknet = ">=2.2.0"

[[target.starknet-contract]] sierra = true `

[xJonathanLEI]

From your own log:

WARNING: the JSON-RPC endpoint you're using serves specs 0.5.1, which might be incompatible with the version 0.6.0 supported by this Starkli release for the starknet_estimateFee method. You might encounter errors.

Why did you claim that your RPC is 0.6.0 then? Starkli already tells you why it fails with a warning. You need a JSON-RPC 0.6.0 endpoint. Check which RPC version to use with starkli -vv.

Closing this now.

[2klonghua]

I run starkli spec-version earlier which generate 0.6.0

I missed that warning message, my bad. Switched to 0.6.0 and it works now. Thank you

[xJonathanLEI]

I run starkli spec-version earlier which generate 0.6.0

This is quite weird tbh. Maybe this means that whichever API provider you're using load balances traffic across different RPC versions, which sounds like a terrible idea if true. In any case pinning the version is always better. You can also consider using the free RPC vendor feature.