Develop Reference

Unity FileNotFoundException "launcherTemplate.gradle" when building for Android

When using Unity 2021.3.6f1 I get a an error saying launcherTemplate.gradle file cannot be found. I don't see it referenced in the project anywhere.
I tried using a custom gradle file, modify existing gradle files but nothing has done the trick so far.
Image
FileNotFoundException: Failed to find $E:/Unity Game Engine/2021.3.6f1/Editor/Data/PlaybackEngines/AndroidPlayer/Tools\GradleTemplates\baseProjectTemplate.gradle
UnityEditor.Android.AndroidBuildPostprocessor.GetTemplate (System.String toolsPath, System.String fileName) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)
UnityEditor.Android.AndroidBuildPostprocessor+<GetDataForBuildProgramFor>d__21.MoveNext () (at <0bc7e9c04c1540528b26863a0cb726ae>:0)
UnityEditor.Modules.BeeBuildPostprocessor.SetupBeeDriver (UnityEditor.Modules.BuildPostProcessArgs args) (at <44a70d1b13cf47e29810e30f45ffae08>:0)
UnityEditor.Modules.BeeBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args) (at <44a70d1b13cf47e29810e30f45ffae08>:0)
Rethrow as BuildFailedException: Exception of type 'UnityEditor.Build.BuildFailedException' was thrown.
UnityEditor.Modules.BeeBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args) (at <44a70d1b13cf47e29810e30f45ffae08>:0)
UnityEditor.Modules.DefaultBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <44a70d1b13cf47e29810e30f45ffae08>:0)
UnityEditor.Android.AndroidBuildPostprocessor.PostProcess (UnityEditor.Modules.BuildPostProcessArgs args, UnityEditor.BuildProperties& outProperties) (at <0bc7e9c04c1540528b26863a0cb726ae>:0)
UnityEditor.PostprocessBuildPlayer.Postprocess (UnityEditor.BuildTargetGroup targetGroup, UnityEditor.BuildTarget target, System.Int32 subtarget, System.String installPath, System.String companyName, System.String productName, System.Int32 width, System.Int32 height, UnityEditor.BuildOptions options, UnityEditor.RuntimeClassRegistry usedClassRegistry, UnityEditor.Build.Reporting.BuildReport report) (at <44a70d1b13cf47e29810e30f45ffae08>:0)
UnityEngine.GUIUtility:ProcessEvent(Int32, IntPtr, Boolean&)

It looks like it's related to Unity Hub not installing Android build tooling properly.
From https://forum.unity.com/threads/cant-build-quest-game.1307529/
Unity Hub installer neglects to install the tools directory to this path:
c:\Program Files\Unity\Hub\Editor\2021.3.6f1\Editor\Data\Tools\
Copying over the directory from another recent Unity Editor installation will allow one to make Quest/Android builds again.

OleDB in Pythonnet and Mono on Mac OS X

I am trying to run several method of a dll library that I own. I use pythonnet 3.0.0dev, python3.9 and Mono 6.10.0. One of the methods triggers creating an .mdb file. On a windows machine I've install Microsoft Access Database Engine (suggested by the dll provider) and I could run my script without any problem. However, doing the same on a Mac OS X triggers the following error:
NotImplementedException: OleDb is not implemented.
at System.Data.OleDb.OleDbConnection..ctor () [0x0000b] in <bd12f551d3b343c5a146c906291931e8>:0
at (wrapper remoting-invoke-with-check) System.Data.OleDb.OleDbConnection..ctor()
at Csu.Modsim.NetworkUtils.DBUtil.OpenDBConnection () [0x0000b] in <1c83b754d09149ce95a722be79ca7efb>:0
at Csu.Modsim.NetworkUtils.DBUtil.Create (System.Boolean Overwrite, System.Boolean LeaveOpen) [0x00026] in <1c83b754d09149ce95a722be79ca7efb>:0
at Csu.Modsim.NetworkUtils.ModelOutputMSDB.InitializeOutput () [0x000a6] in <1c83b754d09149ce95a722be79ca7efb>:0
at Csu.Modsim.NetworkUtils.ModelOutputSupport.FlushOutputToCSV (Csu.Modsim.ModsimModel.Model mi, System.Boolean finalizeOutput) [0x0030d] in <1c83b754d09149ce95a722be79ca7efb>:0
at Csu.Modsim.ModsimModel.GlobalMembersOperate.operate (Csu.Modsim.ModsimModel.Model mi, Csu.Modsim.ModsimModel.Model mi2) [0x012ab] in <6f164bf9bd4744b9a0c1e4daaabc0e8a>:0
at Csu.Modsim.ModsimModel.Modsim.RunSolver (Csu.Modsim.ModsimModel.Model mi) [0x002f7] in <6f164bf9bd4744b9a0c1e4daaabc0e8a>:0
at (wrapper managed-to-native) System.Reflection.RuntimeMethodInfo.InternalInvoke(System.Reflection.RuntimeMethodInfo,object,object[],System.Exception&)
at System.Reflection.RuntimeMethodInfo.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x0006a] in <55adae4546cd485ba70e2948332ebe8c>:0
What could be a possible solution to this problem. All my installed components are 64-bit.
Thanks

Mono.CSharp.Evaluator.ReferenceAssembly() throwing NullReferenceException

Using Mono.CSharp.dll version 2.0 targeting .Net 3.5.
Using the Unity Editor version 5.6.3p1.
There is a using statement for .
Here is my code:
Evaluator.Init(new string[] { });
foreach (Assembly assembly in AppDomain.CurrentDomain.GetAssemblies())
Evaluator.ReferenceAssembly(assembly);
(not shown: using Mono.CSharp;)
Here is the error (throwing on that third line):
NullReferenceException: Object reference not set to an instance of an object
Mono.CSharp.TypeManager.IsThisOrFriendAssembly (System.Reflection.Assembly assembly)
Mono.CSharp.Namespace.RegisterExternalExtensionMethodClass (System.Type type)
Mono.CSharp.RootNamespace.RegisterExtensionMethodClass (System.Type t)
Mono.CSharp.RootNamespace.ComputeNamespaces (System.Reflection.Assembly assembly, System.Type extensionType)
Mono.CSharp.RootNamespace.ComputeNamespace (Mono.CSharp.CompilerContext ctx, System.Type extensionType)
Mono.CSharp.GlobalRootNamespace.ComputeNamespaces (Mono.CSharp.CompilerContext ctx)
Mono.CSharp.Driver.LoadReferences ()
Mono.CSharp.Evaluator.InitAndGetStartupFiles (System.String[] args)
Mono.CSharp.Evaluator.Init (System.String[] args)
CharlesOlinerCommandConsole.CommandConsole.Start () (at Assets/CommandConsole/Scripts/CommandConsole.cs:123)
I tried elevating the permissions of the Unity Editor, but it did not work.
I also tried putting Mono.CSharp.dll in the plugins folder, but that also did not work.
Any help is appreciated.

Xamarin Binding "Wrapper type '' is missing its native ObjectiveC Class

I am trying to bind an external accessory MSR SDK to Xamarin. Note, this is ON the device. It does not work in the simulator at all. I keep getting this error:
Wrapper type 'iMagProII.IMag' is missing its native ObjectiveC class 'IMag'.
Here is my .cs with my linker flags:
[assembly: LinkWith ("libiMagSDK.a", LinkTarget = LinkTarget.ArmV6 | LinkTarget.ArmV7 | LinkTarget.Simulator, SmartLink = true, ForceLoad = true, IsCxx = true, Frameworks = "CoreGraphics ExternalAccessory", LinkerFlags="-lsqlite3.0 -lc++")]
Here is the Stack Trace:
at MonoTouch.Registrar.DynamicRegistrar.OnRegisterType (MonoTouch.Registrar.ObjCType type) [0x00334] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/.pmcs-compat.DynamicRegistrar.cs:573
at MonoTouch.Registrar.Registrar.RegisterTypeUnsafe (System.Type type, System.Collections.Generic.List`1& exceptions) [0x009a4] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/.pmcs-compat.Registrar.cs:1027
at MonoTouch.Registrar.Registrar.RegisterType (System.Type type, System.Collections.Generic.List`1& exceptions) [0x00011] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/.pmcs-compat.Registrar.cs:680
at MonoTouch.Registrar.DynamicRegistrar.Register (System.Type type) [0x00002] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/.pmcs-compat.DynamicRegistrar.cs:839
at MonoTouch.ObjCRuntime.Class.Register (System.Type type) [0x00000] in /Developer/MonoTouch/Source/monotouch/src/ObjCRuntime/.pmcs-compat.Class.cs:126
at MonoTouch.ObjCRuntime.Class.GetHandle (System.Type type) [0x00000] in <filename unknown>:0
at MonoTouch.Foundation.NSObject.AllocIfNeeded () [0x00015] in /Developer/MonoTouch/Source/maccore/src/Foundation/.pmcs-compat.NSObject2.cs:390
at MonoTouch.Foundation.NSObject..ctor (MonoTouch.Foundation.NSObjectFlag x) [0x00006] in /Developer/MonoTouch/Source/maccore/src/Foundation/.pmcs-compat.NSObject2.cs:102
at iMagProII.IMag..ctor () [0x00000] in /Users//Projects/Xamarin/Bindings/Unimag/iMagProII/obj/Debug/ios/iMagProII/IMag.g.cs:112
at iMagProII.iOS.ImagViewController.ViewDidLoad () [0x0005c] in /Users//Projects/Xamarin/Bindings/Unimag/iMagProII.iOS/ImagViewController.cs:46
at (wrapper managed-to-native) MonoTouch.ObjCRuntime.Messaging:IntPtr_objc_msgSendSuper (intptr,intptr)
at MonoTouch.UIKit.UIViewController.get_View () [0x00030] in /Developer/MonoTouch/Source/monotouch/src/build/compat/UIKit/.pmcs-compat.UIViewController.g.cs:2232
at iMagProII.iOS.ImagViewController..ctor () [0x00008] in /Users//Projects/Xamarin/Bindings/Unimag/iMagProII.iOS/ImagViewController.cs:23
at iMagProII.iOS.AppDelegate.FinishedLaunching (MonoTouch.UIKit.UIApplication app, MonoTouch.Foundation.NSDictionary options) [0x00016] in /Users//Projects/Xamarin/Bindings/Unimag/iMagProII.iOS/AppDelegate.cs:33
at (wrapper managed-to-native) MonoTouch.UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at MonoTouch.UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x0004c] in /Developer/MonoTouch/Source/monotouch/src/UIKit/.pmcs-compat.UIApplication.cs:38
at iMagProII.iOS.Application.Main (System.String[] args) [0x00008] in /Users//Projects/Xamarin/Bindings/Unimag/iMagProII.iOS/Main.cs:17
Any help on getting this library bound would be greatly appreciated. I have been banging my head at it for hours now.

This occurs when the class IMag can't be found in the final executable.
The most common reasons for this are:
A typo in the class name.
The native library does not include the architecture you're building for. For instance the native library needs to contain i386 code to run in the simulator. You can use the lipo tool to list the architectures in the native library:
$ lipo -info /path/to/libiMagSDK.a
You also need to know the architecture you're using for the app, you can check this in the project's iOS Build settings, on the Advanced page. Select one that the native library includes.
The native library in the binding project depends on another native library which is not in the binding project (and the IMag class is in that other library). All non-platform dependencies must be included.
The native library is incorrectly built, and doesn't include the class you're trying to bind (this is not frequent, but I've still seen it several times). You can use the nm tool to check what's included in a native library:
$ nm -arch armv7 /path/to/libiMagSDK.a | grep IMag
0x0000f00d S _OBJC_CLASS_$_IMag
[other results]
The above result would indicate that the class is included in the native library.

Mono TypeLoadException in ChannelFactory<>.CreateChannel, no exception on .NET/Windows

I am creating a net.tcp based WCF service to control one of our backend applications. During development and testing on a Windows machine everything worked as expected.
However when I tried to run the very same application using Mono on either the same Windows box (Mono 2.10.6) or on Debian Squeeze (with Mono 2.10.5), I suddenly get a TypeLoadException in the ChannelFactory.
In the end it comes down to just this call that fails:
controlHost = ChannelFactory<IControlServiceContract>.CreateChannel(
new NetTcpBinding(SecurityMode.None),
new EndpointAddress(endpointAddress)
);
With this definition for IControlServiceContract in another assembly:
[ServiceContract]
public interface IControlServiceContract
{
[OperationContract(IsOneWay = true)]
void Ping ();
[OperationContract(IsOneWay = true)]
void Shutdown ();
[OperationContract]
int GetCommandCount ();
}
Which runs fine when started directly (i.e. using .NET).
When executed using mono --debug --runtime=v4.0 though it crashes with this super sweet stack trace:
! Ein Fehler ist beim Erzeugen des Kanals auf net.tcp://localhost:34684/watchdog/watchdog.ctrl/ aufgetreten
A type load exception has occurred.
at System.Linq.Enumerable.Union[Object] (IEnumerable`1 first, IEnumerable`1 second, IEqualityComparer`1 comparer) [0x00014] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.Core\System.Linq\Enumerable.cs:2948
at System.Linq.Enumerable.Union[Object] (IEnumerable`1 first, IEnumerable`1 second) [0x00007] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.Core\System.Linq\Enumerable.cs:2938
at System.ServiceModel.Description.ContractDescriptionGenerator.GetOrCreateOperation (System.ServiceModel.Description.ContractDescription cd, System.Reflection.MethodInfo mi, System.Reflection.MethodInfo serviceMethod, System.ServiceModel.OperationContractAttribute oca, System.Type asyncReturnType, Boolean isCallback, System.Type givenServiceType) [0x001f2] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescriptionGenerator.cs:314
at System.ServiceModel.Description.ContractDescriptionGenerator.FillOperationsForInterface (System.ServiceModel.Description.ContractDescription cd, System.Type exactContractType, System.Type givenServiceType, Boolean isCallback) [0x00131] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescriptionGenerator.cs:240
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContractInternal (System.Type givenContractType, System.Type givenServiceType, System.TypeserviceTypeForCallback) [0x00296] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescriptionGenerator.cs:197
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContract (System.Type givenContractType, System.Type givenServiceType, System.Type serviceTypeForCallback) [0x00000] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescriptionGenerator.cs:136
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContract (System.Type givenContractType, System.Type givenServiceType) [0x00000] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescriptionGenerator.cs:131
at System.ServiceModel.Description.ContractDescriptionGenerator.GetContract (System.Type contractType) [0x00000] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescriptionGenerator.cs:101
at System.ServiceModel.Description.ContractDescription.GetContract (System.Type contractType) [0x00017] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel.Description\ContractDescription.cs:66
at System.ServiceModel.ChannelFactory`1[com.derixx.dll.controlservicehost.ServiceBase.IControlServiceContract].CreateDescription () [0x00000] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel\ChannelFactory_1.cs:185
at System.ServiceModel.ChannelFactory`1[com.derixx.dll.controlservicehost.ServiceBase.IControlServiceContract]..ctor (System.Type type) [0x00033] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel\ChannelFactory_1.cs:56
at System.ServiceModel.ChannelFactory`1[com.derixx.dll.controlservicehost.ServiceBase.IControlServiceContract]..ctor (System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress remoteAddress) [0x00000] in <filename unknown>:0
at System.ServiceModel.ChannelFactory`1[com.derixx.dll.controlservicehost.ServiceBase.IControlServiceContract].CreateChannel (System.ServiceModel.Channels.Binding binding, System.ServiceModel.EndpointAddress address) [0x00000] in C:\cygwin\tmp\monobuild\build\BUILD\mono-2.10.6\mcs\class\System.ServiceModel\System.ServiceModel\ChannelFactory_1.cs:130
at applicationframework.ControlApplicationBase.ConnectionCreate (IControlServiceContract& controlHost, System.String endpointHost, Int32 endpointPort, System.String endpointPath) [0x00000] in <filename unknown>:0
All assemblies used int his project are either our own ones targeted at Framework 4.0, core assemblies and log4net 1.2.10/2.0.50727.
Does anyone have a clue what this could be and where I should start digging?

Well, if it works on .NET and not Mono it's definitely a bug.
I would go ahead and first thing submit it in http://bugzilla.xamarin.com/
Then maybe hangout in irc://irc.gnome.org/mono , and poke Atsushi Enomoto (nick "eno") which is the maintainer of WCF, to see what he thinks.