Cannot read property 'toHexString' of undefined

[deacix]

Got this error after using "estimate" in a contract:

TypeError: Cannot read property 'toHexString' of undefined
at new BigNumber (/app/node_modules/ethers/utils/bignumber.js:89:24)
at Object.bigNumberify (/app/node_modules/ethers/utils/bignumber.js:182:12)
at /app/node_modules/ethers/providers/base-provider.js:839:44
at process._tickCallback (internal/process/next_tick.js:68:7)

The return value is "undefined". The parity node answered very wrong somehow. Will try to get the response together.

Update from 15.06.2019:
Found in Parity logs this response:
Response: {"jsonrpc":"2.0","error":{"code":-32016,"message":"The execution failed due to an exception."},"id":42}.
for eth_estimateGas.

Ethers.js should normally understand the code -32016. Saw it working somewhere.

[ricmoo]

Can you please provide a contract address, ABI, network, etc? :)

[ricmoo]

I'm going to close this now, but please feel free to re-open with reproduction steps, and I'll take another look...

Thanks! :)