NPOI在打开文件时引发异常，但仅在发布模式下

Question

I just made a class that can translate an Excel file into a list of C# objects. I am currently working on Xamarin.Android. All worked fine in debug mode, the file was opening correctly. But when I changed to release mode, it just crashes without any exception message, but only the stacktrace (that I don't understand :s)

I believe my permissions are correctly setup, I checked them in the application settings.

I tried with a Windows application, it works.

I tried to change the file's location, but nothing changed.

try
{
     book = new XSSFWorkbook(filePath.GetStream());
}
catch (Exception e) // Exception without message
{
    onResult(new SyncProductsSummary(false, 0, 0, e));
    return;
}

filePath.GetStream works just fine, I get the actual file size, and I also tried NOT using this, but by giving the filePath as string, nothing changed.

Here's the stacktrace I get:

If the image doesn't work (I'm not sure how to use this): https://pasteboard.co/IgbV96W.jpg

Answer 1

If it is working in the debug configuration, but not the release configuration, it is likely due to the linker settings. Like Jason mentioned, your release configuration may be trying to "Link All" which would require linker configuration for use. Try using one of the other two settings.

• MS Android Docs: https://docs.microsoft.com/en-us/xamarin/android/deploy-test/linker

• MS iOS Docs: https://docs.microsoft.com/en-us/xamarin/ios/deploy-test/linker

If you are unfamiliar, you can find these settings in your project build settings.