[iOS] Error when accessing DataReader

[EgorK0rshun]

Only in release mode. On build from TestFlight it is always reproduced

Invalid argument(s): Failed to lookup symbol 'super_native_extensions_init_message_channel_context': dlsym(RTLD_DEFAULT, super_native_extensions_init_message_channel_context): symbol not found

https://github.com/superlistapp/super_native_extensions/issues/309#issuecomment-1932769768

[knopp]

This might be related to a particular applications. Can you check the binary uploaded to testflight, look at the libsuper_native_extension.so inside, list the symbols (using nm) and find out if super_native_extensions_init_message_channel_context is there?

[stepushchik]

There no .so files in TestFlight version, we have .../Products/Applications/Runner.app/Frameworks/App.framework/App file and

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in it.

[EgorK0rshun]

it looks like super_native_extensions_init_message_channel_context2 . Maybe problem in 2?

[stepushchik]

[knopp]

Sorry, I meant dylib. There should be a dylib super_native_extensions framework. Using the nm command you should be able to list all symbols inside.

[knopp]

Note that the dylib does not have an extension. It's the binary file in the root of the framework.

[stepushchik]

There is no super_native_extensions dylib in Frameworks

[stepushchik]

We have some mentions of super_native_extensions in App, but nm -gD App output:

App:
/Applications/Xcode.app/Contents/Developer/Toolchains/XcodeDefault.xctoolchain/usr/bin/nm: error: App: File format has no dynamic symbol table

and nm App output:

App:
00000000005e6c40 S _kDartIsolateSnapshotData
000000000000e340 T _kDartIsolateSnapshotInstructions
00000000005de340 S _kDartVmSnapshotData
0000000000004000 T _kDartVmSnapshotInstructions
                 U dyld_stub_binder

[knopp]

There don't seem to be any frameworks from other flutter plugins. Is super_native_extensions only flutter plugin that you're using?

[stepushchik]

We are using a lot of other plugins and there are mentions of them in App For example, sqflite:

[stepushchik]

Also we have

flutter_ios_podfile_setup

target 'Runner' do
  platform :ios, '13.0'
  use_frameworks! :linkage => :static
  use_modular_headers!

  flutter_install_all_ios_pods File.dirname(File.realpath(__FILE__))

end

in Podfile

[knopp]

use_frameworks! :linkage => :static`

super_native_extensions does not support static linkage. What reason do you have for using static linkage?

[stepushchik]

I have removed :linkage => :static. It was added for unknown reason from previous project (maybe due to old dependencies). Everything works OK.

Thanks for your time and for super_native_extensions!