How To Find Android Google Play Services Version

I'm working on an android project which requires the use of google maps. I've been reading tutorials, and I have to add this to the AndroidManifest.xml file:

<meta-data
    android:name="com.google.android.gms.version"
    android:value="@integer/google_play_services_version" />

The thing is, I don't know what number to substitute the "@integer/google_play_services_version" with.

If anyone knows what I should enter there, and how to obtain that integer value, I'd appreciate it.

There is no need to subsitute. The value @integer/google_play_services_version takes care of it. Just make sure you have the latest Google Play Services library which is updated.

You can find it under google-play-services_lib>res>values>version.xml if you wish to add the number rather than @integer/google_play_services_version.

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <integer name="google_play_services_version">4030500</integer>
</resources>

Here is the official guide for setting up Google Play Services in your project.

FYI, you could find the version number in this folder:

~\android-studio\sdk\extras\google\m2repository\com\google\android\gms\play-services

Enjoy.

Error you have mentioned is maybe because of not adding Google play services lib as library of your project do the following.

1. Select File -> Import -> Android -> Existing Android Code Into Workspace and click Next.
2. Select Browse, enter /extras/google/google_play_services/libproject/google-play-services_lib, and click Open. 3.Select Copy projects into workspace and click Finish.

Mark Google Play services as a library: Right-click the google-play-services_lib project, and choose Properties > Android. Tick the Is Library option.

Right click on your project -> go to properties -> click android -> click add button -> click google_play_services_lib -> ok -> apply -> ok clean your project this will remove your error