Failed to lookup symbol (dlsym(RTLD_DEFAULT, crypto_box_seedbytes): symbol not found)

[nailkhasipov]

[VERBOSE-2:ui_dart_state.cc(166)] Unhandled Exception: Invalid argument(s): Failed to lookup symbol (dlsym(RTLD_DEFAULT, crypto_box_seedbytes): symbol not found)
#0 DynamicLibrary.lookup (dart:ffi-patch/ffi_dynamic_library_patch.dart:31:29)
#1 Bindings.lookupSizet (package:flutter_sodium/src/bindings/libsodium.dart:29:14)
#2 new CryptoBoxBindings (package:flutter_sodium/src/bindings/crypto_box_bindings.dart:9:17)
#3 Sodium._cryptoBox (package:flutter_sodium/src/sodium.dart:35:29)
#4 Sodium._cryptoBox (package:flutter_sodium/src/sodium.dart)
#5 Sodium.cryptoBoxPublickeybytes (package:flutter_sodium/src/sodium.dart:190:7)
#6 Sodium.cryptoBoxKeypair (package:flutter_sodium/src/sodium.dart:226:40)
#7 CryptoBox.randomKeys (package:flutter_sodium/src/crypto_box.dart:10:41)
#8 generateKeys (package:vlow/screens/onboarding_screen.dart:171:36)
#9 _OnboardingState.create (package:vlow/screens/onboarding_screen.dart:47:28)
#10 GestureRecognizer.invokeCallbac<…>

Flutter (Channel stable, 1.20.2, on Mac OS X 10.15.6 19G73, locale en-GB)

[soyangel]

Same error here with Flutter 1.20.2.

It works after downgrading to Flutter 1.17.5.

[rohansingh]

Same issue with Flutter 1.20.2. I won't pretend to understand the underlying issue, but I was able to workaround it by reverting to a pre-FFI revision (0575e58).

[kozw]

Related: flutter/flutter#62853

[soyangel]

Does the workaround mentioned on flutter/flutter#62853 works with this plugin?

I'm trying with a modified pubspec.yaml including with the "platforms:" section but get the same error.

[kozw]

That issue is definitely related. However the problem is not pubspec.yaml, but the podspec which has changed significantly since Flutter 1.20. Still looking for a solution though.

[vishnukvmd]

Downgrading Flutter to 1.19.0-4.3.pre solved this for me (I had to say goodbye to a few nice things, but better them than libsodium).

@kozw What is weird is that the example app you've been kind enough to provide works well with Flutter 1.20.4 (stable). But my application freezes with (dlsym(RTLD_DEFAULT, sodium_init): symbol not found). Copying the missing elements from the example's Podfile, did not help.

[kozw]

You most likely get a warning that the Podfile is out of date. When you remove the podfile in example/ios folder, it will be regenerated with something different in flutter 1.20 and you'll get the same error.

It's still a mystery to me would I need to do to fix this.

[kozw]

Scratch that previous comment. Just had a brainwave and flutter_sodium now seems to work with flutter 1.20.

Please try 0.1.5 available in pub.dev.

[rohansingh]

Hmm, 0.1.5 fails to build on Android:

/Users/rohan/tidbyt/flutter/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java:16: error: cannot find symbol
import com.firstfloorsoftware.flutter_sodium.FlutterSodiumPlugin;
                                            ^
  symbol:   class FlutterSodiumPlugin
  location: package com.firstfloorsoftware.flutter_sodium
/Users/rohan/tidbyt/flutter/android/app/src/main/java/io/flutter/plugins/GeneratedPluginRegistrant.java:46: error: cannot find symbol
    FlutterSodiumPlugin.registerWith(registry.registrarFor("com.firstfloorsoftware.flutter_sodium.FlutterSodiumPlugin"));
    ^
  symbol:   variable FlutterSodiumPlugin
  location: class GeneratedPluginRegistrant
2 errors

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:compileDebugJavaWithJavac'.
> Compilation failed; see the compiler error output for details.

* Try:
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.

* Get more help at https://help.gradle.org

BUILD FAILED in 51s
Exception: Gradle task assembleDebug failed with exit code 1

[kozw]

My bad, fixed in 0.1.6. All should be good now.

[rohansingh]

Just confirming, 0.1.6 works beautifully. Thanks so much!

[kozw]

Good to hear, enjoy!

[nailkhasipov]

Also confirmed that 0.1.6 works perfectly with Flutter 1.22.0 beta. Thanks! 🎉