Error Message in Unity

[ad2003]

Hello!
Getting the following error Log when opening Unity 2018.2 and importing the current release into an new project:

Assets/Scripts/BTCPayUnity.cs(27,16): error CS1644: Feature asynchronous functions' cannot be used because it is not part of the C# 4.0 language specification`

When following the tut (https://blog.indiesquare.me/develop-a-lightning-game-with-unity-btcpay-sdk-part-2-set-up-unity-project-d4fa68cec3bf - thank you for this!) and importing "Download In-Game Shop version of Survival Shooter" everything worked fine.

Thanks.

[ad2003]

microsoft/MixedRealityToolkit-Unity#739 (comment)

[masashinaka]

Hi @ad2003 . Thanks for comments. How did you fix it ? I am guessing you have done either,

1. .net version change on Unity setting to 4.x from 3.x
2. import asset for async-await from Unity asset store
   Because I want to make the documentation better, I want to know that.
   Your feedback helps other game devs.

[ad2003]

Hi! Correct: 1. Under Project Settings I changed "Scripting Runtime Version" from 3.5 to 4.
This worked. I could open the project and fiddle around a bit. I could connect to my server and lightning pay works. I wanted to make a test build but now I am getting errors:

ArgumentException: The Assembly log4net is referenced by BitCoinSharp ('Assets/Dlls/BitCoinSharp.dll'). But the dll is not allowed to be included or could not be found. UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List1[T] alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary2[TKey,TValue] cache, UnityEditor.BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:155) UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List1[T] alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary2[TKey,TValue] cache, UnityEditor.BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:161) UnityEditor.AssemblyHelper.AddReferencedAssembliesRecurse (System.String assemblyPath, System.Collections.Generic.List1[T] alreadyFoundAssemblies, System.String[] allAssemblyPaths, System.String[] foldersToSearch, System.Collections.Generic.Dictionary2[TKey,TValue] cache, UnityEditor.BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:161) UnityEditor.AssemblyHelper.FindAssembliesReferencedBy (System.String[] paths, System.String[] foldersToSearch, UnityEditor.BuildTarget target) (at C:/buildslave/unity/build/Editor/Mono/AssemblyHelper.cs:195) UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

Build completed with a result of 'Failed' UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

UnityEditor.BuildPlayerWindow+BuildMethodException: 3 errors at UnityEditor.BuildPlayerWindow+DefaultBuildMethods.BuildPlayer (UnityEditor.BuildPlayerOptions options) [0x0021f] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:187 at UnityEditor.BuildPlayerWindow.CallBuildMethods (System.Boolean askForBuildLocation, UnityEditor.BuildOptions defaultBuildOptions) [0x0007f] in C:\buildslave\unity\build\Editor\Mono\BuildPlayerWindowBuildMethods.cs:94 UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr)

edited: added the correct error log.

[hypergori]

Please try to download the log4net dll here and put it in /Assets/Dlls/ folder.

https://logging.apache.org/log4net/download_log4net.cgi

We will make the dependency management more elegant. #3

[ad2003]

Nice! Thank you! I used log4net-2.0.8-bin-oldkey.zip\log4net-2.0.8\bin\net\4.0\release and put it in the DLLs folder. Under Player Settings I checked API Compatibility Level to NET 4.X. and now it works!