flutter web got exception RangeError

[oonid]

Hi,
I try to use stellar_flutter_sdk in flutter web.
the code simply call KeyPair.random().

I got this exception:

══╡ EXCEPTION CAUGHT BY WIDGETS LIBRARY ╞═══════════════════════════════════════════════════════════
The following RangeError was thrown building MyApp(dirty):
max must be in range 0 < max ≤ 2^32, was 0

The relevant error-causing widget was:
  MyApp file:///Users/x/y/z/lib/main.dart:5:10

When the exception was thrown, this was the stack:
dart-sdk/lib/_internal/js_dev_runtime/private/ddc_runtime/errors.dart 214:49  throw_
dart-sdk/lib/_internal/js_dev_runtime/patch/math_patch.dart 314:7             nextInt
packages/tweetnacl/src/tweetnacl_base.dart 3150:27                            randombytes_array_len
packages/tweetnacl/src/tweetnacl_base.dart 3139:12                            randombytes_array
packages/tweetnacl/src/tweetnacl_base.dart 3143:12                            randombytes
packages/stellar_flutter_sdk/src/key_pair.dart 176:46                         random

that was using Chrome (web), ddc runtime.
the functionality has no problem on the Android emulator.

my pubspec.yaml:

  stellar_flutter_sdk: ^1.0.4

I saw both packages stellar_flutter_sdk and tweetnacl, has flutter web badge support.

thoughts?

thank you.

[christian-rogobete]

Hi @oonid thank you for reposting this. I will take a look next week and let I will let you know.

[christian-rogobete]

Hello @oonid the issue comes from the tweetnacl code. I first tried to solve it there, but then a new issue appears that is not an easy fix. I added this new issue to the tweetnacl repo. Hopefully they fix it, otherwise we will need to find another solution. For now the sdk is not usable with the flutter web beta but good for android and ios. I will remove the web badge in pub.dev with the next release if tweetnacl is not fixed until then.

[oonid]

thank you @christian-rogobete for the updates.