When I want to run android app in Microsoft Visual Studio (with XAMARIN), I'm getting this message:
Could not find android.jar for API Level 23. This means the Android SDK platform for API Level 23 is not installed. Either install it in the Android SDK Manager (Tools > Open Android SDK Manager...), or change your Xamarin.Android project to target an API version that is installed. (C:\Users\Tomek\AppData\Local\Android\Sdk\platforms\android-23\android.jar missing.)
How can I change this path to D:\Android\Sdk\platforms\android-23\android.jar ? Changing location in Tools > Options > Xamarin > Android SDK location doesn't work.
It looks like you need to point Xamarin.Android to the location of your Android SDK on your D:\ drive:
Visual Studio > Tools > Options > Xamarin > Android > Android SDK Location
You would set this to the path of your SDK, in your case
D:\Android\Sdk
Please also make sure that you have the Android API 23 installed in your SDK Manager.
Go to Tools > Android > Android SDK Manager
Locate the SDK Platform item in the Android 6.0 (API 23) folder and select the checkbox. Click Install in the bottom right and follow the instructions.