BinaryFormatter exception c#

[sadralatif]

I’m trying to serialize an object using System.Runtime.Serialization.Formatters.Binary.BinaryFormatter but I’m getting an exception related that the constructor of the BinaryFormatter is not accessible.

[     73422] [    GTAProcess]             MainThrd/ Error invoking callback for event onClientResourceStart: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.MethodAccessException: Error verifying FiveMGameMode.Client.MainScript:Serialize (object): Constructor System.Runtime.Serialization.Formatters.Binary.BinaryFormatter:.ctor () not visible from FiveMGameMode.Client.MainScript:Serialize (object) at 0x003c
[     73485] [    GTAProcess]             MainThrd/   at FiveMGameMode.Client.MainScript.OnStart (System.String resourceName) [0x00050] in <da9f11586ef547f184246bac619b9c8d>:0 
[     73563] [    GTAProcess]             MainThrd/   at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
[     73610] [    GTAProcess]             MainThrd/   at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00032] in <74fbbe963b7e417b8d715b858c5c584f>:0 
[     73672] [    GTAProcess]             MainThrd/    --- End of inner exception stack trace ---
[     73719] [    GTAProcess]             MainThrd/   at System.Reflection.MonoMethod.Invoke (System.Object obj, System.Reflection.BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00048] in <74fbbe963b7e417b8d715b858c5c584f>:0 
[     73766] [    GTAProcess]             MainThrd/   at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <74fbbe963b7e417b8d715b858c5c584f>:0 
[     73828] [    GTAProcess]             MainThrd/   at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x000e7] in <74fbbe963b7e417b8d715b858c5c584f>:0 
[     73906] [    GTAProcess]             MainThrd/   at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00008] in <74fbbe963b7e417b8d715b858c5c584f>:0 
[     73985] [    GTAProcess]             MainThrd/   at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <74fbbe963b7e417b8d715b858c5c584f>:0 

Code:

public byte[] Serialize(object serializableObject)
{
    using (var memoryStream = new MemoryStream())
    {
        var formatter = new BinaryFormatter();
        formatter.Serialize(memoryStream, serializableObject);
        return memoryStream.ToArray();
    }
}

[nta]

https://docs.microsoft.com/en-us/visualstudio/code-quality/ca2300?view=vs-2019

etc.

Don’t use BinaryFormatter.