Exception with libMonoPosixHelper.dylib on MAC Build

Unity Engine
1

Hello,

I’m working again on an old project that used to build and work fine with Unity 2018.3

I’ve installed Unity 2019.3.0f3.

I can build without issue (unless I’ve missed something in a log somewhere?).

I have the following function:

public static string CompressString(string text)
        {
            try
            {
                if (text == null || text.Length == 0) return String.Empty;

                using (var memoryStream = new MemoryStream())
                {
                    byte[] buffer = Encoding.UTF8.GetBytes(text);
                    using (var gZipStream = new GZipStream(memoryStream, CompressionMode.Compress, true))
                    {
                        gZipStream.Write(buffer, 0, buffer.Length);
                    }

                    memoryStream.Position = 0;

                    var compressedData = new byte[memoryStream.Length];
                    memoryStream.Read(compressedData, 0, compressedData.Length);

                    var gZipBuffer = new byte[compressedData.Length + 4];
                    Buffer.BlockCopy(compressedData, 0, gZipBuffer, 4, compressedData.Length);
                    Buffer.BlockCopy(BitConverter.GetBytes(buffer.Length), 0, gZipBuffer, 0, 4);

                    return Convert.ToBase64String(gZipBuffer);
                }
            }
            catch (Exception erreur)
            {
                return text;
            }
        }

Which works fine on windows.

When I try on my mac I get the following exception:

Am I missing something?

2

Same issue. work fine on unity 2019.2 and only happen with mac build in 2019.3.2f
P/S: not happen when using il2cpp

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5519482--566845--Screen Shot 2020-02-25 at 7.24.42 PM.png
5519482--566845--Screen Shot 2020-02-25 at 7.24.42 PM.png2546×1456 558 KB

3

Same here, also work fine on previous versions… stopped working on 2019.3.0f

4

Same here. Something changed in 2019.3 that broke mono linking to libMonoPosixHelper

5

I’ve found a work around:

  1. Open the package contents of your built mac app
  2. Go into the frameworks folder
  3. Create (inside the frameworks folder) the following directories:

MonoBleedingEdge/MonoEmbedRuntime/osx

  1. move libMonoPosixHelper.dylib from the frameworks folder to the osx folder.

libMonoPosixHelper.dylib should be found now in the build when you run it.

Feels like a Unity bug?

2 Likes