Develop Reference

cannot resolve com.google.android.gsm;play-services:25.1.0

i was working on a project, everything was fine but when i tried to run the app, i couldn't,i guess because i'm using a bundled version of google play services. so i i made sure that i update android studio and install the lastest google repository.
but it still wouldn't work. And when i click on install Repostiroy and sync project, still nothing happens.
please help me : this is my gradle ;
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "com.example.nefissa.pfe2"
minSdkVersion 16
targetSdkVersion 25
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
exclude group: 'com.android.support', module: 'support-annotations'
})
compile 'com.android.support:appcompat-v7:25.1.0'
compile 'com.android.support:design:25.1.0'
compile 'com.android.support:cardview-v7:25.1.0'
compile 'com.google.android.gms:play-services:25.1.0'
testCompile 'junit:junit:4.12'
}
please where did i go wrong?
a screenshot;please what can i do? the click on install wouldn't work

replace it with compile 'com.google.android.gms:play-services:10.2.0'
and add apply plugin: 'com.google.gms.google-services' on the bottom of your gradle,
and make sure you added classpath 'com.google.gms:google-services:3.0.0'
in the Top-level build.gradle file

There might one of these problems can cause this issue, try any one of them.
Solution 1:
Try to updated the gradle plugin.
dependencies {
classpath 'com.android.tools.build:gradle:1.5.0'
}
Then just Build->Clean project and everything works again.
Solution 2:
Go to the main module in your project, it's usually have the name app.
Then go to > Open Module Settings > in Properties change the Build Tools Version to 25.0.1
Then to make sure open the build.gradle file, and change compileSDKVersion & buildToolsVersion to 25 and 25.0.1 respectively.
If the above solution doesnt work.
Solution 3:
From this answer
"build cache" is enabled by default in build Android Plugin since 2.3.0. It creates files in build cache outside of project folder (e.g. in \Users\%username%.android\build-cache). Theese files are intended to be common between your projects.
And then Android Studio is unable to navigate in theese files.
You can disable Build Cache in gradle.properties file. just add android.enableBuildCache=false

Add AppCompat dependency to Gradle in Android Studio

Verdant newbie here. I'm making a fairly simple project that needs to be compatible with Android versions older than Lollipop, but still want to have the app look nicer by using AppCompat.
Unfortunately, I do not know how to work (or even find) the gradle - I tried to run a gradle task: compile "com.android.support:appcompat-v7:21.0.+"
But it returned an error saying that "Task 'compile' is ambiguous...." in my project.
Could anyone tell me how to add this? I've searched all over Google, but everything goes way over my head.
Thanks!

Have you been able to locate Gradle file?
Edit your gradle like this :
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.3"
defaultConfig {
applicationId "com.xyz.xyz"
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.00.00"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.3.0'
compile 'com.android.support:support-v4:23.3.0'
}
Update your question and post full Gradle code.

Add the appcomapt library(com.android.support:appcompat-v7:21.0.+") in dependancy section of the build.gradle file
Or second way to add library is by searching on maven repo.this can be done by traversing file->project structure->app>dependancy->click (+) ->add Library dependancy

Task 'compile' is ambiguous.
This issue is not the Compile Issue. but this was an issue on the task itself.
if you are not using a command like "gradle compileDebug" then one of the android configurations are executing the task and it is not working well with your build.gradle.
Here is a link that seems to relate specifically to your issue. Click Here

Add AAR file as dependency to Intellj project

I'm using Intellij IDEA 14.1.4 to make an Android project after moving from Android Studio a while back. I made some libraries (through Android Studio) and would like to use them in Intellij.
However, it seems that Intellij only accepts .jar files through the libs folder, and Android Studio only creates .aar files.
In Android Studio, one has the option (when creating a new module) to import an existing .jar/.aar package to be put into a new module. This option doesn't seem to be in intellij. This user seems to think that Intellij supports that, but those instructions allow me to create a brand new Gradle module. What I want to do is use an existing .aar file.
What should I go about doing? Should I move back to Studio for this project, or is there a way for me to use these .aar files?
P.S. Intellij can't process raw aars, period. I tried adding this to my gradle files, but got an error:
compile fileTree(dir: 'libs', include: ['*.aar'])
Edit
Here's my build.gradle:
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:1.2.3'
}
}
apply plugin: 'com.android.application'
repositories {
jcenter()
flatDir() {
dirs 'libs'
}
}
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
minSdkVersion 19
targetSdkVersion 22
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile ':mylib#aar'
compile 'com.android.support:appcompat-v7:22.2.0'
}

So I saw this option in Intellj called "Associate file..." and associated the aar with an archive. Upon recompile I got this error
Warning:Project app: Only Jar-type local dependencies are supported. Cannot handle: mylib.aar
I guess it's only jars for Intellij. Back to Android Studio, I suppose :)

Well first of all you can create .jar files with Android Studio as well, see this but .aars are awesome and enable you to do more then what you could with a jar
I have not used Intellij IDEA but I assume you have a gradle.build file in your project? If the name of your aar file is
my_lib_1.0.0.aar
and its under the libs directory then try the following in your gradle.build file:
compile(name:'my_lib_1.0.0', ext:'aar')

Gradle in Android Studio

I'm trying to set up Double Espresso, but that's probably not relevant here. What I'm trying to do is to set up a project in Android Studio using Gradle.
I'm very new to Gradle and build tools in general, though I've successfully used Maven before. Despite an hour of searching I can't find an answer to a very simple question.
In Jake Wharton's instructions it says
No more fumbling with local jars or dependency conflicts. Pull it in with one line:
androidTestCompile 'com.jakewharton.espresso:espresso:1.1-r3'
Pull in where? Where do I put/execute that command to import the project? In the command prompt? Do I put it in one of the scripts?
Thanks for any help.

You have a build.gradle file inside your app folder. In that file you can configure your project, "dependencies" and other options. It's very similar to maven. You have another build.gradle file in your root folder from your project. This conf file is more general and call the other build.gradle file.
e.g I have in one of my projects
apply plugin: 'com.android.application'
android {
compileSdkVersion 20
buildToolsVersion "20.0.0"
defaultConfig {
applicationId "com.acostela.example"
minSdkVersion 17
targetSdkVersion 20
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile 'com.android.support:appcompat-v7:20.+'
compile "com.android.support:gridlayout-v7:18.0.+"
compile 'com.j256.ormlite:ormlite-core:4.48'
compile 'com.j256.ormlite:ormlite-android:4.48'
compile 'commons-net:commons-net:3.3'
compile 'net.sf.opencsv:opencsv:2.3'
}
Dependencies here are similar to maven and the use in that tool of "/".
Gradle take libs from repositories in the same way of maven. In fact you can use the maven repository. You have a tab with the gradle sentence to download libraries.
http://mvnrepository.com/artifact/com.squareup.assertj/assertj-android/1.0.0

Android Studio can't find imported library

I've imported a library in Android studio (0.5.3)
My settings.graddle looks like this:
include ':app', ':libs:Android-PullToRefresh-master'
And my build.graddle looks like this:
apply plugin: 'android'
android {
compileSdkVersion 19
buildToolsVersion '19.0.1'
defaultConfig {
minSdkVersion 14
targetSdkVersion 19
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
}
}
}
dependencies {
compile 'com.android.support:appcompat-v7:19.+'
compile 'com.android.support:support-v4:19.+'
compile 'com.google.android.gms:play-services:4.2.42'
compile fileTree(dir: 'libs', include: ['*.jar'])
project(':libs:Android-PullToRefresh-master');
}
The folder I've downloaded is placed in the libs folder directly under the app folder. Also the graddle syncs and building doesn't provide any error. Yet whenever I try to import import com.handmark.xxxxxx; I get the error cannot resolve symbol 'handmark'. I've chcecked to project structure and the app has the dependency in the list.
What is going wrong and how can I fix this?

I ran into the same issue here and asked the question on the "Android Developer Tools" Google+'s community. Alex Ruiz picked up the conversation and told me:
I'm able to reproduce this issue. Unfortunately, no updates yet. We
are currently fixing the "Project Structure" (the core
infrastructure,) and we will get to this, hopefully soon.
So they are aware of it but we still have to wait until they fix it.

In the root of your project, run :
./gradlew clean && ./gradlew build
Then recompile your project in studio and you should see your new lib.

I had the exact same problem as this, however the library file was an aar file, and it happened a long time after adding the library and developing with it for a while.
Building on the information Thomas provided; I found to fix this you should replace the file dependency with a maven dependency if possible. A good resource for finding and creating your Gradle dependency is Gradle, please.
That site returns the below dependency when searching for PullToRefresh
dependencies {
compile 'com.loopeer.android.thirdparty.pulltorefresh:Android-PullToRefresh:2.1.1'
}