Linux - Fails to Compile (System.Enum)

[T321]

Greetings,

Trying to get this to work on Ubuntu and recive the following error.

Errors:
+ VitaNex/Core/PropertyObjects/SettingsObject.cs:
CS0450: Line 22: `System.Enum': cannot specify both a constraint class and the `class' or `struct' constraint
CS0702: Line 22: A constraint cannot be special class `System.Enum'
+ VitaNex/Core/Extensions/Server/SerializeExt.cs:
CS0450: Line 1593: `System.Enum': cannot specify both a constraint class and the `class' or `struct' constraint
CS0702: Line 1593: A constraint cannot be special class `System.Enum'
CS0450: Line 1657: `System.Enum': cannot specify both a constraint class and the `class' or `struct' constraint
CS0702: Line 1657: A constraint cannot be special class `System.Enum'
CS0450: Line 1675: `System.Enum': cannot specify both a constraint class and the `class' or `struct' constraint
CS0702: Line 1675: A constraint cannot be special class `System.Enum'

I did change the ScriptCompiler to use langversion:7.2 instead of 7.3 as that was the only way for me to get ServUO to actually run. Hopefully that is not causing the issue...

Any pointers would help. Thanks!

 

[Voxpire]

You can probably just remove the "Enum" part of the constraint, for example;

where T : struct, Enum

->

where T : struct

 

[T321]

Making those changes it still runs on Windows but on Linux it is throwing a few errors. I'm not even sure if these errors are related or not but...one such error:

ScriptCompiler: : Unhandled Exception:
ScriptCompiler: : Mono.CSharp.InternalErrorException: Scripts/VitaNex/Core/Modules/EquipmentSets/Objects/Set.cs(150,53): VitaNex.Modules.EquipmentSets.EquipmentSet.FindEquippedParts(Server.Mobile) ---> Mono.CSharp.InternalErrorException: (1,1): ---> Mono.CSharp.InternalErrorException: Scripts/VitaNex/Core/Modules/EquipmentSets/Objects/Set.cs(151,3): VitaNex.Modules.EquipmentSets.EquipmentSet.<FindEquippedParts>c__Iterator0.<item>__2 ---> System.NullReferenceException: Object reference not set to an instance of an object
ScriptCompiler: : at IKVM.Reflection.Signature.WriteType (IKVM.Reflection.Emit.ModuleBuilder module, IKVM.Reflection.Writer.ByteBuffer bb, IKVM.Reflection.Type type) [0x000b6] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : at IKVM.Reflection.FieldSignature.WriteSig (IKVM.Reflection.Emit.ModuleBuilder module, IKVM.Reflection.Writer.ByteBuffer bb) [0x00014] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : at IKVM.Reflection.Emit.FieldBuilder..ctor (IKVM.Reflection.Emit.TypeBuilder type, System.String name, IKVM.Reflection.Type fieldType, IKVM.Reflection.CustomModifiers customModifiers, IKVM.Reflection.FieldAttributes attribs) [0x00062] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : at IKVM.Reflection.Emit.TypeBuilder.__DefineField (System.String fieldName, IKVM.Reflection.Type type, IKVM.Reflection.CustomModifiers customModifiers, IKVM.Reflection.FieldAttributes attributes) [0x00000] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : at IKVM.Reflection.Emit.TypeBuilder.DefineField (System.String fieldName, IKVM.Reflection.Type type, IKVM.Reflection.Type[] requiredCustomModifiers, IKVM.Reflection.Type[] optionalCustomModifiers, IKVM.Reflection.FieldAttributes attributes) [0x0000b] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : at Mono.CSharp.Field.Define () [0x00076] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : at Mono.CSharp.TypeDefinition.DoDefineMembers () [0x0033a] in <8af43adb329b4b31adfd72b11b31e258>:0
ScriptCompiler: : --- End of inner exception stack trace ---

 

[Voxpire]

Sorry, I'm not even sure where to begin with that, MONO is fickle at the best of times and the code throwing the null-reference error doesn't have the potential to actually be null.

Is it the latest version of MONO?

 

[T321]

I was on 6.8.0.105 but just updated to the latest of 6.12.0.200. Still hitting that same error.

I shall continue to beat my head against the wall and see what happens .

 

[Aetherius Shadowblade]

install latest version of mono with: sudo apt install mono-develop[
that will install everything related to mono.

update your gcc compiler, that might be a problem.

and beyond that, not sure.

 

[T321]

I have installed the monodevelop and verified newest version of gcc. Sadly the same issue occurs.

Back to

 

[YUKIMIMI]

I'm using mono 6.13.0. and i'd deleted 'struct' keywords.
but I got following errors.

Errors:
+ VitaNex/Core/PropertyObjects/SettingsObject.cs:
CS0702: Line 22: A constraint cannot be special class `System.Enum'
+ VitaNex/Core/Extensions/Server/SerializeExt.cs:
CS0702: Line 1593: A constraint cannot be special class `System.Enum'
CS0702: Line 1657: A constraint cannot be special class `System.Enum'
CS0702: Line 1675: A constraint cannot be special class `System.Enum'
Scripts: One or more scripts failed to compile or no script files were found.

MONO supports only "/langversion:7.2", not "/langversion:7.3".
So it can not compile following code:

void Func<T>() where T: System.Enum {}

Help!

I tried to compile Vita-Nex 5.2.0. I didn't get above errors.
but I got errors in UOFonts.cs (https://www.servuo.com/threads/compilation-error-in-uofont-cs.15461/#post-91764)
I think we cannot compile Vita-Nex in MONO environments(Ubuntu/macOS)