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Error provider.getBlock in ethers v5, working in v4

See original GitHub issue

Getting error in ethers 5.0 while it works in 4.0,

ethers.version
"ethers/5.0.0-beta.169"

provider = ethers.getDefaultProvider('kovan')
FallbackProvider {_isProvider: true, formatter: Formatter, _network: {…}, ready: Promise, _maxInternalBlockNumber: -1024, …}

await provider.getBlock(16265864);
ethers.umd.js:4555 Uncaught (in promise) TypeError: Cannot read property '_hex' of null TypeError: Cannot read property '_hex' of null
    at Function.BigNumber.from (ethers.umd.js:4554)
    at Formatter.difficulty (ethers.umd.js:20091)
    at Function.Formatter.check (ethers.umd.js:20270)
    at Formatter._block (ethers.umd.js:20113)
    at Formatter.block (ethers.umd.js:20117)
    at FallbackProvider.<anonymous> (ethers.umd.js:21716)
    at step (ethers.umd.js:20481)
    at Object.next (ethers.umd.js:20412)
    at fulfilled (ethers.umd.js:20366)
BigNumber.from @ ethers.umd.js:4554
Formatter.difficulty @ ethers.umd.js:20091
Formatter.check @ ethers.umd.js:20270
Formatter._block @ ethers.umd.js:20113
Formatter.block @ ethers.umd.js:20117
(anonymous) @ ethers.umd.js:21716
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
fulfilled @ ethers.umd.js:20366
load (async)
(anonymous) @ ethers.umd.js:18879
fileReaderReady @ ethers.umd.js:18878
readBlobAsText @ ethers.umd.js:18898
Body.text @ ethers.umd.js:18997
(anonymous) @ ethers.umd.js:19661
step @ ethers.umd.js:19456
(anonymous) @ ethers.umd.js:19387
fulfilled @ ethers.umd.js:19341
Promise.then (async)
step @ ethers.umd.js:19356
(anonymous) @ ethers.umd.js:19359
__awaiter @ ethers.umd.js:19338
(anonymous) @ ethers.umd.js:19623
fetchJson @ ethers.umd.js:19740
JsonRpcProvider.send @ ethers.umd.js:22963
JsonRpcProvider.perform @ ethers.umd.js:23019
(anonymous) @ ethers.umd.js:21625
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
lib$l.poll.onceBlock @ ethers.umd.js:21618
check @ ethers.umd.js:19796
(anonymous) @ ethers.umd.js:19836
poll @ ethers.umd.js:19766
(anonymous) @ ethers.umd.js:21617
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
BaseProvider._getBlock @ ethers.umd.js:21548
BaseProvider.getBlock @ ethers.umd.js:21729
getRunner @ ethers.umd.js:24625
_loop_2 @ ethers.umd.js:24790
(anonymous) @ ethers.umd.js:24842
step @ ethers.umd.js:24336
(anonymous) @ ethers.umd.js:24267
step @ ethers.umd.js:24275
(anonymous) @ ethers.umd.js:24267
(anonymous) @ ethers.umd.js:24239
__awaiter @ ethers.umd.js:24218
FallbackProvider.perform @ ethers.umd.js:24728
(anonymous) @ ethers.umd.js:21625
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
lib$l.poll.onceBlock @ ethers.umd.js:21618
check @ ethers.umd.js:19796
(anonymous) @ ethers.umd.js:19836
poll @ ethers.umd.js:19766
(anonymous) @ ethers.umd.js:21617
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
BaseProvider._getBlock @ ethers.umd.js:21548
BaseProvider.getBlock @ ethers.umd.js:21729
(anonymous) @ VM13701:1
(anonymous) @ VM13701:2
ethers.umd.js:4554 Uncaught (in promise) TypeError: Cannot read property '_hex' of null
    at Function.BigNumber.from (ethers.umd.js:4554)
    at Formatter.difficulty (ethers.umd.js:20091)
    at Function.Formatter.check (ethers.umd.js:20270)
    at Formatter._block (ethers.umd.js:20113)
    at Formatter.block (ethers.umd.js:20117)
    at FallbackProvider.<anonymous> (ethers.umd.js:21716)
    at step (ethers.umd.js:20481)
    at Object.next (ethers.umd.js:20412)
    at fulfilled (ethers.umd.js:20366)
BigNumber.from @ ethers.umd.js:4554
Formatter.difficulty @ ethers.umd.js:20091
Formatter.check @ ethers.umd.js:20270
Formatter._block @ ethers.umd.js:20113
Formatter.block @ ethers.umd.js:20117
(anonymous) @ ethers.umd.js:21716
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
fulfilled @ ethers.umd.js:20366
load (async)
(anonymous) @ ethers.umd.js:18879
fileReaderReady @ ethers.umd.js:18878
readBlobAsText @ ethers.umd.js:18898
Body.text @ ethers.umd.js:18997
(anonymous) @ ethers.umd.js:19661
step @ ethers.umd.js:19456
(anonymous) @ ethers.umd.js:19387
fulfilled @ ethers.umd.js:19341
Promise.then (async)
step @ ethers.umd.js:19356
(anonymous) @ ethers.umd.js:19359
__awaiter @ ethers.umd.js:19338
(anonymous) @ ethers.umd.js:19623
fetchJson @ ethers.umd.js:19740
JsonRpcProvider.send @ ethers.umd.js:22963
JsonRpcProvider.perform @ ethers.umd.js:23019
(anonymous) @ ethers.umd.js:21625
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
lib$l.poll.onceBlock @ ethers.umd.js:21618
check @ ethers.umd.js:19796
(anonymous) @ ethers.umd.js:19836
poll @ ethers.umd.js:19766
(anonymous) @ ethers.umd.js:21617
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
BaseProvider._getBlock @ ethers.umd.js:21548
BaseProvider.getBlock @ ethers.umd.js:21729
getRunner @ ethers.umd.js:24625
_loop_2 @ ethers.umd.js:24790
(anonymous) @ ethers.umd.js:24842
step @ ethers.umd.js:24336
(anonymous) @ ethers.umd.js:24267
step @ ethers.umd.js:24275
(anonymous) @ ethers.umd.js:24267
(anonymous) @ ethers.umd.js:24239
__awaiter @ ethers.umd.js:24218
FallbackProvider.perform @ ethers.umd.js:24728
(anonymous) @ ethers.umd.js:21625
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
lib$l.poll.onceBlock @ ethers.umd.js:21618
check @ ethers.umd.js:19796
(anonymous) @ ethers.umd.js:19836
poll @ ethers.umd.js:19766
(anonymous) @ ethers.umd.js:21617
step @ ethers.umd.js:20481
(anonymous) @ ethers.umd.js:20412
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
fulfilled @ ethers.umd.js:20366
Promise.then (async)
step @ ethers.umd.js:20381
(anonymous) @ ethers.umd.js:20384
__awaiter @ ethers.umd.js:20363
BaseProvider._getBlock @ ethers.umd.js:21548
BaseProvider.getBlock @ ethers.umd.js:21729
(anonymous) @ VM13701:1
(anonymous) @ VM13701:2

Tried it for homestead seems to be working for that.

Issue Analytics

  • State:closed
  • Created 4 years ago
  • Comments:7 (5 by maintainers)

github_iconTop GitHub Comments

1reaction
ricmoocommented, Jan 22, 2020

This should be fixed now in the npm version, 5.0.0-beta.170. Please give it a go and let me know if you still have issues. 😃

1reaction
zemsecommented, Jan 21, 2020

Okay, this was pretty quick response 😛

Read more comments on GitHub >

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