Exception (undefined symbol: obx_version_is_at_least) when instantiating Store

[sezaru]

After upgrading ObjectBox to version 1.0.0, I started receiving an exception every time I start the Store, I only catch this exception when I enable Visual Studio Code "All Exceptions" option, and it doesn't seem to affect anything (the database works fine).

Basic info (please complete the following information):

• ObjectBox version: 1.0.0
• Flutter/Dart SDK: 2.2.0/2.13.0
• Null-safety enabled: yes
• Reproducibility: always
• OS: Ubuntu 21.04
• Device/Emulator: Emulator

Steps to reproduce

1. Enable VSCode All Exceptions option;
2. Instantiate a new Store.

Expected behavior

No exception

Logs, stack traces

Since I couldn't get the stacktrace for the issue, I decide to add an image with the exception and the line in the code that it happens to help locate the issue:

[vaind]

That's kinda expected and I wonder if we can do anything about it. This code branch is about checking if objectbox.dll/so/dylib is already loaded (as it always is on mac and iOS, but also may be on other platforms) and it does so by trying to check if the symbol exists, catching the exception thrown by DynamicLibrary.lookup() (package dart:ffi). There's currently no other way to do that as far as I know, but I'll try to open an issue upstream.

[vaind]

the upstream issue: dart-archive/ffi#104

[sezaru]

Just so you know, version 2.14.0 implemented your upstream suggestion :D

[dev-thinks]

how to overcome this issue. Objectbox with flutter worked fine in my mac. but suddenly getting this exception and completely blocked my development. @vaind any help would be appreciated.

Update: Nevermind. somehow "Break at all exception" option checked in IDE causes this blocker; reverting this option makes it works as before.

[greenrobot-team]

Side note: Dart 2.14.0 has shipped as part of Flutter 2.5.0. New API is DynamicLibrary.providesSymbol.