Develop Reference

Which library should I use for Location when using google maps?

I have the following library for the google maps and it works fine
implementation 'com.google.android.gms:play-services-maps:16.1.0'
But when I try to add this one for location,
implementation 'com.google.android.gms:play-services-location:16.1.0'
the following error occurs
Failed to resolve: com.google.android.gms:play-services-location:16.1.0
Which library for the location should I use?
THANK YOU.

You will get latest gradle dependencies here
https://developers.google.com/android/guides/setup

It is probably because 16.1.0 does not exist for this library. Google Play Services libraries do not always have the same version. So maps might be on 16.1.0 but location might not even have this version.
To get the latest versions, check the official release page: https://developers.google.com/android/guides/releases
And as you are just starting, make sure to use the latest ones:
com.google.android.gms:play-services-location:17.0.0
com.google.android.gms:play-services-maps:17.0.0
Yes, it is a coincident that those versions are currently the same. As you can see in the list there are already libraries on 19.0.0, like appindexing
com.google.firebase:firebase-appindexing:19.0.0
Edit
A small practical tip: If you replace the version by + and sync the project, gradle will get the newest one and afterwards you can use the IDE warning to replace the + again with the newest version number. That eases a bit the checking on different pages if there is a new version or not etc

Failed to resolve: com.google.android.libraries.places:1.0.0:

I want to use Google places API but I can't sync the project with "com.google.android.libraries.places:1.0.0:" dependency. How to add the places in my project?.

The library in documentation is wrong I guess, use this, it works.
I had same issue few days back , gave a feedback to them on documentation they still didn't fix it.
implementation 'com.google.android.libraries.places:places:2.1.0'
You can see how to add places autocomplete over here
Edit: Seems like they finally fixed the documentation

try to change
compileOnly "com.facebook.react:react-native:+"
by
api "com.facebook.react:react-native:+"

I also stuck with the same issue, now i removed this issue. According to google,
"The v1.0.0 release of the Places SDK for Android introduces an all-new static library with updated functionality. The Google Play Services version of the Places SDK for Android (in Google Play Services 16.0.0) is deprecated as of January 29, 2019, and will be turned off on July 29, 2019."
Add following dependency it will work...
implementation 'com.google.android.libraries.places:places:1.0.0'
For more information you can visit,
https://developers.google.com/places/android-sdk/client-migration

Google play services maps 9.2.0 issue

My Android app has been successfully using maps by including the following in my gradle ...
compile project(':googleplayservices_lib')
My SDK manager says I have rev 32 which appears to be the latest. So with this, everything has been working just fine.
Now I'm enhancing the app and I saw some posts that says I can now use zIndex parameter when adding a marker to control the Z Index. But to do this I must add the following to my gradle . . .
compile 'com.google.android.gms:play-services-maps:9.2.0'
So now my gradle file has this dependencies section . . .
dependencies {
compile project(':library')
compile project(':googleplayservices_lib')
compile files('libs/gson-2.2.4.jar')
compile 'com.android.support:appcompat-v7:22.0.0'
compile 'com.android.support:design:22.2.1'
compile 'com.google.android.gms:play-services-maps:9.2.0'
}
Now I'm able to set zIndex but this new version apparently comes with breaking changes. For instance the following no longer works . . .
map = ((SupportMapFragment) getSupportFragmentManager().findFragmentById(R.id.map))
.getMap();
map is a GoogleMap. The compiler cannot resolve the getMap() method. My problem is that I can't seem to locate the documentation on this new maps revision where it discusses breaking changes for this new version. Does anyone know where I can find such information?

My Android app has been successfully using maps by including the following in my gradle
Presumably, that is an in-project copy of the old Eclipse library project edition of the Play Services SDK. Ideally, you would have moved off of that to the Play Services SDK artifacts back when you moved to Android Studio.
My SDK manager says I have rev 32 which appears to be the latest
Since you are using a local in-project copy, what the SDK Manager reports is not directly relevant.
Also, Google has not been maintaining that library project for at least the past several months, so "latest" of that library is meaningless with respect to using the latest version of the Play Services SDK.
So now my gradle file has this dependencies section . . .
I am surprised that compiles. Remove compile project(':googleplayservices_lib'). If you are using parts of the Play Services SDK beyond Maps V2, use appropriate and compatible artifacts for those APIs as well.
The compiler cannot resolve the getMap() method.
getMap() was deprecated about 20 months ago, in favor of getMapAsync().
My problem is that I can't seem to locate the documentation on this new maps revision where it discusses breaking changes for this new version.
Maps V2 release notes are in the Play Services documentation. A subset of Maps V2 release notes are incorporated in the overall Play Services release notes.

Cannot Implement GoogleApiClient.ServerAuthCodeCallbacks in android

I am implementing Google plus login system to my android app by following the tutorial of google developer at https://developers.google.com/identity/sign-in/android/sign-in
According to the tutorial, I should implement:
GoogleApiClient.ServerAuthCodeCallbacks
interface to enable server-side API access for the android app. However, 'ServerAuthCodeCallbacks' interface does not exist in the GoogleApiClient library, even in the latest version of the library.
Does anybody have the same issue? Or, am I missing something?
Any input will be greatly appreciated!

See the example implementation on GitHub: github.com/googleplus/gplus-quickstart-android
Your dependency on com.google.android.gms:play-services must be at least of version 7.0.0 (currently latest is version 7.5.0)
Class itself is currently placed in package com.google.android.gms.common.api in Maven sub-dependency play-services-base
So for example like this:
dependencies {
compile 'com.google.android.gms:play-services:7.5.0'
}
Also see current Developer documentation here:
https://developers.google.com/android/guides/setup#add_google_play_services_to_your_project

can not find symbol class Builder

I am using loginActivity in android.
ERROR
can not find symbol class Builder
I have also imported the file: com.google.android.gms.plus.PlusClient
Error on this line
mPlusClient = new PlusClient.Builder(this, this, this).setScopes(Scopes.PLUS_LOGIN, Scopes.PLUS_ME).build();
This is auto generated file from template.
What could be the reason for this error?
EDIT
I am using android studio
minSdkVersion 11
targetSdkVersion 21

I solved in my project by downgrading play-services to:
compile 'com.google.android.gms:play-services:6.1.71'
in dependencies in gradle file.

It is not available because it is deprecated. Use GoogleApiClient instead.
Start integrating Google+ : This is the official documentation for implementing Google+ client in your Android app for login and other requirements. Please follow this and not the auto-generated code from Android studio (until the code gets updated with newer implementation).
P.S. The other answer suggests to use older version of PlusClient, which is a wrong approach. You should be using newer code Instead of using older play services.