Package problem

General
1

While android previewing the app , this error shows up:
C:\Users\USER\Documents\GitHub\MyIQFinanceMobile\DeviceLocale.uno(30,24): Error E3107: 'Language' does not contain a member called 'Java'. Could you be missing a package reference

And this is DeviceLocale.uno code:

// Cut down from the "fuse-device" package by Maxim Shaydo aka MaxGraey
// https://github.com/MaxGraey/fuse-device

using Uno;
using Uno.UX;
using Uno.Text;
using Uno.Collections;
using Uno.Compiler.ExportTargetInterop;
using Fuse;
using Fuse.Scripting;
using Fuse.Reactive;
[extern(Android)ForeignInclude(Language.Java, "android.app.Activity", "android.provider.Settings",
                               "android.content.*","java.security.*", "java.util.regex.*", "java.util.*",
                               "java.net.*", "java.nio.*", "java.io.*")]

[extern(iOS) ForeignInclude(Language.ObjC, "sys/types.h", "sys/sysctl.h")]

[UXGlobalModule]
public sealed class DeviceLocale : NativeModule {
    static readonly DeviceLocale _instance;
    
    public DeviceLocale() : base() {
        if (_instance != null) return;
        Uno.UX.Resource.SetGlobalKey(_instance = this, "DeviceLocale");

        AddMember(new NativeProperty< string, object >("locale", GetCurrentLocale));
    }


    [Foreign(Language.Java)]
	public static extern(Android) string GetCurrentLocale()
	@{
		Locale loc = java.util.Locale.getDefault();

        final char separator = '-';
        String language = loc.getLanguage();
        String region   = loc.getCountry();
        String variant  = loc.getVariant();

        // special case for Norwegian Nynorsk since "NY" cannot be a variant as per BCP 47
        // this goes before the string matching since "NY" wont pass the variant checks
        if (language.equals("no") && region.equals("NO") && variant.equals("NY")) {
            language = "nn";
            region   = "NO";
            variant  = "";
        }

        if (language.isEmpty() || !language.matches("\\p{Alpha}{2,8}")) {
            language = "und"; // "und" for Undetermined
        } else if (language.equals("iw")) {
            language = "he";  // correct deprecated "Hebrew"
        } else if (language.equals("in")) {
            language = "id";  // correct deprecated "Indonesian"
        } else if (language.equals("ji")) {
            language = "yi";   // correct deprecated "Yiddish"
        }

        // ensure valid country code, if not well formed, it's omitted
        if (!region.matches("\\p{Alpha}{2}|\\p{Digit}{3}")) {
            region = "";
        }

         // variant subtags that begin with a letter must be at least 5 characters long
        if (!variant.matches("\\p{Alnum}{5,8}|\\p{Digit}\\p{Alnum}{3}")) {
            variant = "";
        }

        StringBuilder bcp47Tag = new StringBuilder(language);
        if (!region.isEmpty()) {
            bcp47Tag.append(separator).append(region);
        }

        if (!variant.isEmpty()) {
            bcp47Tag.append(separator).append(variant);
        }

        return bcp47Tag.toString();
	@}

	[Foreign(Language.ObjC)]
	private static extern(iOS) string GetCurrentLocale()
	@{
		NSString* language = NSLocale.preferredLanguages[0];

        if (language.length <= 2) {
            NSLocale* locale        = NSLocale.currentLocale;
            NSString* localeId      = locale.localeIdentifier;
            NSRange underscoreIndex = [localeId rangeOfString: @"_" options: NSBackwardsSearch];
            NSRange atSignIndex     = [localeId rangeOfString: @"@"];

            if (underscoreIndex.location != NSNotFound) {
                if (atSignIndex.length == 0)
                    language = [NSString stringWithFormat: @"%@%@", language, [localeId substringFromIndex: underscoreIndex.location]];
                else {
                    NSRange localeRange = NSMakeRange(underscoreIndex.location, atSignIndex.location - underscoreIndex.location);
                    language = [NSString stringWithFormat: @"%@%@", language, [localeId substringWithRange: localeRange]];
                }
            }
        }

        return [language stringByReplacingOccurrencesOfString: @"_" withString: @"-"];
	@}

    // Preview's implementations
    public static extern(!Mobile) string GetCurrentLocale() {
		return "en-EN";
    }
}

Is it problem with the packages?Should I use something like
using Language; ???

2

I understand that this was solved on another thread.