مشکل با برنامه نویسی اندروید در ویژوال استودیو 2015

سلام

زامارین و پیش نیازهای آن و ویژوال استودیو 2015 را نصب کردم. کرک هم شده حالا ولی خروجی Xamarin Diagnostics به شکل زیر هست. تعداد دستگاه های پیدا شده رو میگه صفر هست.

من تازه در شروع کار برنامه نویسی اندروید هستم لطفا راهنمایی کنید چی کار کنم

[W:]:                     Adb connection refused
[I:]:                     Starting Adb server (adb start-server)
[I:]:                     Adb start-server operation completed
[D:]:                     TrackDeviceTask got: 
[I:]:                     Got new device list from adb with 0 devices
[D:]:                     avd watcher: got device list from avd with 0 devices

کاملش رو هم اینجا میزارم

[I:sdk]:                  Looking for Android SDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory found:
   Path does not contain adb.exe in \platform-tools (C:\android-sdk-windows).
[I:sdk]:                    Key HKCU\SOFTWARE\Xamarin\MonoAndroid\PrivateAndroidSdkPath not found.
[I:sdk]:                    Key HKCU\SOFTWARE\Android SDK Tools\Path not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Android SDK Tools\Path found:
   Path contains adb.exe in \platform-tools (C:\Program Files\Android\android-sdk).
[I:sdk]:                  Looking for Android NDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory found:
   Path contains ndk-stack.exe in \. (C:\Program Files\Android\android-sdk\android-ndk-r10).
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\JavaSdkDirectory not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\JavaSdkDirectory not found.
[I:sdk]:                  Looking for Java 6 SDK..
[I:sdk]:                    Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\CurrentVersion found.
[I:sdk]:                    Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.6\JavaHome not found.
[I:sdk]:                    Key HKLM\SOFTWARE\JavaSoft\Java Development Kit\1.7\JavaHome found:
   Path contains jarsigner.exe in \bin (C:\Program Files\Java\jdk1.7.0_51).
[I:Unknown]:              Found Android SDK. API levels: 20, 21, 23
[I:Unknown]:              Found Xamarin.Android 6.0.2
[I:sdk]:                  Looking for Android SDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory found:
   Path does not contain adb.exe in \platform-tools (C:\android-sdk-windows).
[I:sdk]:                    Key HKCU\SOFTWARE\Xamarin\MonoAndroid\PrivateAndroidSdkPath not found.
[I:sdk]:                    Key HKCU\SOFTWARE\Android SDK Tools\Path not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Android SDK Tools\Path found:
   Path contains adb.exe in \platform-tools (C:\Program Files\Android\android-sdk).
[I:sdk]:                  Looking for Android NDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory found:
   Path contains ndk-stack.exe in \. (C:\Program Files\Android\android-sdk\android-ndk-r10).
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:Unknown]:              Found Android SDK. API levels: 20, 21, 23
[I:Unknown]:              Found Xamarin.Android 6.0.2
[I:sdk]:                  Looking for Android SDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidSdkDirectory found:
   Path does not contain adb.exe in \platform-tools (C:\android-sdk-windows).
[I:sdk]:                    Key HKCU\SOFTWARE\Xamarin\MonoAndroid\PrivateAndroidSdkPath not found.
[I:sdk]:                    Key HKCU\SOFTWARE\Android SDK Tools\Path not found.
[I:sdk]:                    Key HKLM\SOFTWARE\Android SDK Tools\Path found:
   Path contains adb.exe in \platform-tools (C:\Program Files\Android\android-sdk).
[I:sdk]:                  Looking for Android NDK..
[I:sdk]:                    Key HKCU\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory found:
   Path contains ndk-stack.exe in \. (C:\Program Files\Android\android-sdk\android-ndk-r10).
[I:sdk]:                    Key HKLM\SOFTWARE\Novell\Mono for Android\AndroidNdkDirectory not found.
[I:Unknown]:              Found Android SDK. API levels: 20, 21, 23
[I:Unknown]:              Found Xamarin.Android 6.0.2
[I:]:                     Tracking android devices started
[D:]:                     Tracking avd started
[D:]:                     avd watcher *.ini path: 'C:\Users\Mehran\.android\avd'
[D:]:                     avd watcher android path: 'C:\PROGRA~1\Android\ANDROI~1\tools\android.bat'
[W:]:                     Adb connection refused
[I:]:                     Starting Adb server (adb start-server)
[I:]:                     Adb start-server operation completed
[D:]:                     TrackDeviceTask got: 
[I:]:                     Got new device list from adb with 0 devices
[D:]:                     avd watcher: got device list from avd with 0 devices