[IOS: <ZSTD_getDecompressedSize symbol not found>

[butoften]

Is there an existing issue for this?

• I have searched the existing issues.

Which plugins are affected?

Zstandard iOS

Which platforms are affected?

iOS

Description

Hello,

I really like your plugin. I am developing Flutter on a Mac. Debugging on an Android physical device works fine, and debugging on an iOS simulator also works fine. However, when debugging on an iOS physical device, I encounter an error.

Reproducing the issue

Error message: Failed to lookup symbol 'ZSTD_getDecompressedSize': dlsym(0x8153400, ZSTD_getDecompressedSize): symbol not found

I hope to get your help.

mac: 12.7.4 (21H1123)
ios: 14.1
Flutter: 3.29.0
Dart: 3.7.0

Thank you.

Flutter Version

3.29.0

Relevant Log Output

Flutter dependencies

Expand Flutter dependencies snippet

Replace this line with the contents of your `flutter pub deps -- --style=compact`.

Additional context and comments

No response

[efraespada]

Thanks for the report @butoften.
Let me check what the problem is.

[githublsy]

any progress ？

[efraespada]

It should be fixed on 1.3.29. Sorry for the delay 😓

[ganwumeng]

Any update? Still failed to use this plugin:Invalid argument(s): Failed to lookup symbol 'ZSTD_getDecompressedSize': dlsym(0x395077020, ZSTD_getDecompressedSize): symbol not found. Version 1.3.29, macOS 26.

[efraespada]

Could you test this? @ganwumeng

dependencies:
  zstandard:
    git:
      url: https://github.com/vypdev/zstandard.git

[efraespada]

@butoften @ganwumeng upgrade to version 1.4.0 and reopen the issue if the problem persists.

[ganwumeng]

I encountered this error when running pod install in the macos folder with version 1.4.0.

Installing zstandard_macos (0.0.1)
[!] /bin/bash -c 
set -e
bash -c '[ -x "../../scripts/sync_zstd_ios_macos.sh" ] && "../../scripts/sync_zstd_ios_macos.sh" macos'

However, using the following dependency_overrides (downgrading zstandard_macos to 1.3.29) resolved the issue for me:

dependency_overrides:
  zstandard: 1.4.0
  zstandard_android: 1.4.0
  zstandard_ios: 1.4.0
  zstandard_linux: 1.4.0
  zstandard_macos: 1.3.29  # Downgrading fixed the build
  zstandard_platform_interface: 1.4.0
  zstandard_web: 1.4.0
  zstandard_windows: 1.4.0

It seems there might be an issue with the post-install script sync_zstd_ios_macos.sh in the latest zstandard_macos: 1.4.0 release.

[efraespada]

I'm checking it right now. Thanks for the report.

[efraespada]

Fixed on 1.4.4 @ganwumeng