Target "Preview" has thrown an exception

Process completed with exit code 1.

The field 'Build.PackageContentType' is assigned but its value is never used

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\CoreLibs\HolyClient.Common\ProxyInfo.cs(17,17): warning CS8618: Non-nullable property 'Host' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\CoreLibs\HolyClient.Common\HolyClient.Common.csproj]

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\Tags\NbtBoolean.cs(18,15): warning CS0108: 'NbtBoolean.Value' hides inherited member 'NbtByte.Value'. Use the new keyword if hiding was intended. [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\McProtoNet.NBT.csproj::TargetFramework=net8.0]

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\NbtReader.cs(38,10): warning CS8618: Non-nullable field '_nodes' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\McProtoNet.NBT.csproj::TargetFramework=net8.0]

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\NbtWriter.cs(43,10): warning CS8618: Non-nullable field '_nodes' must contain a non-null value when exiting constructor. Consider declaring the field as nullable. [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\McProtoNet.NBT.csproj::TargetFramework=net8.0]

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\NbtReader.cs(689,25): warning CS8604: Possible null reference argument for parameter 'tagName' in 'NbtLong.NbtLong(string tagName, long value)'. [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\McProtoNet.NBT.csproj::TargetFramework=net8.0]

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\NbtBinaryReader.cs(11,28): warning CS0649: Field 'NbtBinaryReader._seekBuffer' is never assigned to, and will always have its default value null [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\McProtoNet\McProtoNet.NBT\McProtoNet.NBT.csproj::TargetFramework=net8.0]

MSBUILD : warning FodyPackageReference: Fody: The package reference for ConfigureAwait.Fody does not contain PrivateAssets='All' [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\CoreLibs\HolyClient.Common\HolyClient.Common.csproj]

D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\QuickProxyNet\Clients\HttpsProxyClient.cs(21,10): warning CS8618: Non-nullable property 'SslCipherSuitesPolicy' must contain a non-null value when exiting constructor. Consider declaring the property as nullable. [D:\a\Minecraft-Holy-Client\Minecraft-Holy-Client\src\QuickProxyNet\QuickProxyNet.csproj::TargetFramework=net8.0]