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Monodroid - by default, a new project of an untouched template cannot work in the Android emulator

I recently installed monodroid and add-on with Visual Studio 2010 Professional. Apparently, the new project has partial coding, and it does not seem to be working working code. It compiles fine from using the “build solution” in the menu, but it does not work in the Android emulator. I was expecting an empty project with file structures, but it looks like it gave me an incomplete sample project. This happens with both visual studio 2010 pro and monodevelop.

Is there an empty project with file structures? if so, where can I access them? if it is supposed to be an empty template, then why is there some kind of code that looks like a button counter.

Thanks, John

codes in activity.cs from a new / untouched project

using System; using Android.App; using Android.Content; using Android.Runtime; using Android.Views; using Android.Widget; using Android.OS; namespace helloworld_a3 { [Activity(Label = "helloworld_a3", MainLauncher = true, Icon = "@drawable/icon")] public class Activity1 : Activity { int count = 1; protected override void OnCreate(Bundle bundle) { base.OnCreate(bundle); // Set our view from the "main" layout resource SetContentView(Resource.Layout.Main); // Get our button from the layout resource, // and attach an event to it Button button = FindViewById<Button>(Resource.Id.MyButton); button.Click += delegate { button.Text = string.Format("{0} clicks!", count++); }; } } }

output after i try to run android emulator

 Packaging application.. Microsoft (R) Build Engine Version 4.0.30319.1 [Microsoft .NET Framework, Version 4.0.30319.239] Copyright (C) Microsoft Corporation 2007. All rights reserved. Build started 12/22/2011 3:27:28 PM. Project "C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\helloworld-a3.csproj" on node 1 (SignAndroidPackage target(s)). _GenerateAndroidAssetsDir: Skipping target "_GenerateAndroidAssetsDir" because it has no outputs. _GenerateAndroidResourceDir: Copying file from "Resources\Layout\Main.axml" to "C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\obj\Debug\res\layout\main.axml". _ResolveMonoAndroidSdks: Looking for Android SDK.. Key HKCU\SOFTWARE\Xamarin\MonoAndroid\PrivateAndroidSdkPath found: Path contains adb.exe in \platform-tools (C:\Users\jon\AppData\Local\Xamarin\MonoForAndroid\AndroidSDK\android-sdk-windows). Looking for Java 6 SDK.. Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\CurrentVersion found. Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.6\JavaHome found: Path contains jarsigner.exe in \bin (C:\Program Files (x86)\Java\jdk1.6.0_27). MonoAndroid Tools: C:\Program Files (x86)\MSBuild\Novell\ MonoAndroid Framework: C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\;C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\ Android SDK: C:\Users\jon\AppData\Local\Xamarin\MonoForAndroid\AndroidSDK\android-sdk-windows\ Java SDK: C:\Program Files (x86)\Java\jdk1.6.0_27\ _ValidateAndroidPackageProperties: GetAndroidPackageName Task ManifestFile: AssemblyName: helloworld-a3 PackageName: helloworld-a3.helloworld-a3 _UpdateAndroidResgen: Skipping target "_UpdateAndroidResgen" because all output files are up-to-date with respect to the input files. GenerateTargetFrameworkMonikerAttribute: Skipping target "GenerateTargetFrameworkMonikerAttribute" because all output files are up-to-date with respect to the input files. CoreCompile: Skipping target "CoreCompile" because all output files are up-to-date with respect to the input files. CopyFilesToOutputDirectory: helloworld-a3 -> C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\bin\Debug\helloworld-a3.dll _ConvertDebuggingFiles: Skipping target "_ConvertDebuggingFiles" because all output files are up-to-date with respect to the input files. _ResolveAssemblies: ResolveAssemblies Task ReferenceAssembliesDirectory: C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\;C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\;; I18nAssemblies: LinkMode: None Assemblies: C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\bin\Debug\helloworld-a3.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\Mono.Android.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.Linq.dll [Output] ResolvedAssemblies: C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\bin\Debug\helloworld-a3.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\Mono.Android.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\Mono.Security.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll [Output] ResolvedUserAssemblies: C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\bin\Debug\helloworld-a3.dll [Output] ResolvedFrameworkAssemblies: C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\Mono.Android.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\Mono.Security.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll _GenerateJavaStubs: ResolvedAssemblies: C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\bin\Debug\helloworld-a3.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\mscorlib.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\Mono.Android.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Core.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\Mono.Security.dll C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v1.0\System.Xml.dll ResolvedUserAssemblies: C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\bin\Debug\helloworld-a3.dll Touching "obj\Debug\android\AndroidManifest.xml". _AddStaticResources: Resource obj\Debug\android\assets\machine.config is unchanged. Skipping. Resource obj\Debug\android\src\mono\MonoRuntimeProvider.java is unchanged. Skipping. Resource obj\Debug\android\src\mono\android\Seppuku.java is unchanged. Skipping. _GeneratePackageManagerJava: Skipping target "_GeneratePackageManagerJava" because all output files are up-to-date with respect to the input files. _CreateBaseApk: C:\Users\jon\AppData\Local\Xamarin\MonoForAndroid\AndroidSDK\android-sdk-windows\platform-tools\aapt.exe package -f -M obj\Debug\android\AndroidManifest.xml -JC:\Users\jon\AppData\Local\Temp\1uuncz32.z2o --custom-package helloworld-a3.helloworld-a3 -F obj\Debug\android\bin\packaged_resources.bk -S "C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\obj\Debug\res" -IC:\Users\jon\AppData\Local\Xamarin\MonoForAndroid\AndroidSDK\android-sdk-windows\platforms\android-8\android.jar obj\Debug\android\AndroidManifest.xml:2: Tag <manifest> attribute package has invalid character '-'. obj\Debug\android\AndroidManifest.xml:14: Tag <category> attribute name has invalid character '-'. _CompileJava: JavaSourceFiles: JavaLibraries: AddOnPlatformLibraries: C:\Program Files (x86)\Java\jdk1.6.0_27\bin\javac.exe -d obj\Debug\android\bin\classes -classpath "C:\Program Files (x86)\Reference Assemblies\Microsoft\Framework\MonoAndroid\v2.2\mono.android.jar" -bootclasspath C:\Users\jon\AppData\Local\Xamarin\MonoForAndroid\AndroidSDK\android-sdk-windows\platforms\android-8\android.jar -encoding UTF-8 "@C:\Users\jon\AppData\Local\Temp\tmpF60D.tmp" C:\Program Files (x86)\MSBuild\Novell\Novell.MonoDroid.Common.targets(678,3): error MSB6006: "javac.exe" exited with code 1. [C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\helloworld-a3.csproj] Done Building Project "C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\helloworld-a3.csproj" (SignAndroidPackage target(s)) -- FAILED. Build FAILED. "C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\helloworld-a3.csproj" (SignAndroidPackage target) (1) -> (_CompileJava target) -> C:\Program Files (x86)\MSBuild\Novell\Novell.MonoDroid.Common.targets(678,3): error MSB6006: "javac.exe" exited with code 1. [C:\Users\jon\Documents\Visual Studio 2010\Projects\helloworld-a3\helloworld-a3\helloworld-a3.csproj] 0 Warning(s) 1 Error(s) Time Elapsed 00:00:01.96 Error: Cancelled ========== Deploy: 0 succeeded, 1 failed, 0 skipped ==========
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 obj\Debug\android\AndroidManifest.xml:2: Tag <manifest> attribute package has invalid character '-'. obj\Debug\android\AndroidManifest.xml:14: Tag <category> attribute name has invalid character '-'.

Remove the dash / hyphen from your project / assembly name.

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Source: https://habr.com/ru/post/904355/

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