I have updated from Android Studio 4.0 to 4.1. After the update I cannot build my application anymore which worked fine before the update.
When I build the project I am getting the following exception:
FAILURE: Build failed with an exception.
What went wrong:
Execution failed for task ':app:compressDebugAssets'.
A failure occurred while executing com.android.build.gradle.internal.tasks.CompressAssetsWorkAction
my\application\path\app\build\intermediates\merged_assets\debug\out
The folder my\application\path\app\build\intermediates\merged_assets\debug\out is empty.
What I tried to do:
Clean and rebuild the project
delete the .gradle and the build folder and clean an rebuild the project
invalidate and restart Android studio
Increased the heap size in gradle.properties to: org.gradle.jvmargs=-Xmx4096m
Increased the compileSdkVersion and targetSdkVersion
Installed and updated the buildToolsVersion from 30.0.0 to 30.0.2
Added multiDexEnabled true to my config
My gradle configuration looks like this:
apply plugin: 'com.android.application'
android {
compileSdkVersion 'android-R'
buildToolsVersion "30.0.2"
defaultConfig {
applicationId "my.application.id"
minSdkVersion 23
targetSdkVersion 29
versionCode 2
versionName "1.1"
multiDexEnabled true
testInstrumentationRunner "androidx.test.runner.AndroidJUnitRunner"
vectorDrawables {
useSupportLibrary = true
}
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android-optimize.txt'), 'proguard-rules.pro'
}
}
}
repositories {
mavenCentral()
maven { url 'https://maven.google.com' }
}
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
implementation 'androidx.appcompat:appcompat:1.2.0'
implementation 'androidx.legacy:legacy-support-v4:1.0.0'
implementation 'com.google.android.material:material:1.2.1'
implementation 'androidx.constraintlayout:constraintlayout:2.0.2'
implementation 'androidx.navigation:navigation-fragment:2.3.1'
implementation 'androidx.navigation:navigation-ui:2.3.1'
implementation 'androidx.lifecycle:lifecycle-extensions:2.2.0'
testImplementation 'junit:junit:4.13.1'
androidTestImplementation 'androidx.test.ext:junit:1.1.2'
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
implementation "androidx.room:room-runtime:2.2.5"
annotationProcessor "androidx.room:room-compiler:2.2.5"
implementation 'com.github.bumptech.glide:glide:4.11.0'
implementation 'androidx.multidex:multidex:2.0.1'
}
Guys, I am out of ideas as I am no expert when it comes to gradle. Help would be most appreciated.
I found a temporary solution in downgrading my Android Studio version to 4.0.2.
Additionally, I changed the Android gradle plugin version to 4.0.2 and the gradle version to 6.1.1 which I had installed before. You can do this under File -> Project Structure -> Project.
Now I am able to run my application again. I am aware that this is only a temporary solution but at least I can work again on my application.
I will try to install Android Studio 4.2 Canary 15 the next days and check, if this works for me. I let you know.
This is what usually works for me every time i make an update, I hope it works for you.
Sometimes gradle build fails because, downloading some dependencies required by gradle for a successful build are missing and need to be downloaded. So make sure your computer is online.
-> Click on gradle (right side of your android studio), then toggle the highlighted button in the pic below.
Make sure its not highlighted, Cause if it is highlighted that means gradle is offline (has no access to internet)
Then rebuild project to download the missing gradle dependencies.
I hope you find this useful.
this solution may help. I had problems with this error showing up and I had no idea why. As it turns out, I save my android projects to a USB stick. The USB stick is formatted using PAL. I reformatted using NTFS and the problem has gone.
I had a similar problem this morning after updating my Android studio. In my case, previous projects run well but if I create a new project and attempt to run, I will get the said error message. I changed the Android Gradle plugin version to 4.0.2 and the Gradle version to 6.1.1 from the project structure dialog and I was able to run the app successfully afterward.
I have this problem when I try to build apk with capacitor Ionic in Android Studio. My solution was:
First change the Android Gradle plugin in build.gradle to classpath 'com.android.tools.build:gradle:4.0.2' and in gradle-wrapper.properties change Gradle version to distributionUrl=https\://services.gradle.org/distributions/gradle-6.1.1-all.zip and press Sync Now.
When gradle sync is finish, close Android Studio Editor and go to project folder and inside android delete .idea and .gradle folders. Next you need to open PowerSheel in this location and run the code .\gradlew clean.
Finally, you can open the project with android studio using in vs npx cap open android or as you want, wait for sync gradle and then you can build your apk.
Changing the location my projects from a FAT32 formatted drive to an NTFS drive solved the problem for me.
Related
A Flutter Android app I developed suddenly compiled wrong today.
Error:
What went wrong:
Execution failed for task ':app:processDebugResources'.
Android resource linking failed
/Users/xxx/.gradle/caches/transforms-2/files-2.1/5d04bb4852dc27334fe36f129faf6500/res/values/values.xml:115:5-162:25: AAPT: error: resource android:attr/lStar not found.
error: failed linking references.
I tried
Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output. Run with --scan to get full insights.
Get more help at https://help.gradle.org
The build failed in 16 seconds.
Using the answer from here
Update compileSdkVersion and targetSdkVersion to 31
And add this code snippet in your android/build.gradle file at the very end.
configurations.all {
resolutionStrategy {
force 'androidx.core:core-ktx:1.6.0'
}
}
Just recently the original author of audioplayers package fixed this issue in his recent PR. It has been fixed in audioplayers version 0.20.1, so if your issue is related to audioplayers, do upgrade.
For those who have this issue in a Cordova application context like me and using an Android API version older than 31 (29 in my case), I found a clean way to bypass it.
TL;DR
If you are using the plugin cordova.plugins.diagnostic, uninstall it first then reinstall it using the following argument:
cordova plugin add cordova.plugins.diagnostic --variable ANDROIDX_VERSION=1.0.0
Refresh the whole android platform and you're project should not be using the androidx.core:core:1.7.0-beta02 anymore.
Full explaination
Solutions already mentionned in the thread (gradle rules to force a certain version of a package) will not work with Cordova as it handles the whole gradle process on it's own (gathering plugins dependencies, config.xml settings and processing everything) and it's really difficult to override specific things.
I did not manage to fix our problem using resolutionStrategy for example.
And migrating to Android API 31 isn't always an easy solution (plugins & dependencies need to support it in particular)
Instead, I tried to find which of my installed plugins were having a dependency linked to the androidx.core:core package, which breaks everything in its 1.7.0-beta02 version.
No one in my list was directly using it, but I found (with the help of the builded build.gradle) that the following package androidx.appcompat:appcompat was used and since it's related to AndroidX as well, I digged a bit and I quickly found-out that the version used for it was 1.+ (latest 1.xx).
Checking on mavenrepo, androidx.appcompat:appcompat has our buggy package androidx.core:core as dependency (1.7.0-beta02 on the latest).
After a quick search with my IDE, I found the definition of the dependency :
<framework src="androidx.appcompat:appcompat:$ANDROIDX_VERSION" />
It was used by a plugin named cordova-diagnostic-plugin. (Pretty common in a Cordova project, it basically handles Android settings, permissions and hardware stuff)
I noticed that an environment variable was used to define the package version (and set by default to 1.+).
Going on the plugin's GitHub documentation : https://github.com/dpa99c/cordova-diagnostic-plugin#androidx-library will tell you that you can indeed set a custom version when installing the plugin with the Cordova command.
Which I did (I removed the plugin first):
cordova plugin add cordova.plugins.diagnostic --variable ANDROIDX_VERSION=1.0.0
After rebuilding the android platform, I started a new build and it was finally successful !
androidx.appcompat:appcompat:1.0.0 was used as well as the androidx.core:core package in its 1.0.0 version. No more error: resource android attr/lStar not found issue !
To sum-up : check your plugins dependencies and if possible, set static versions instead of "latest". In that way, you can (in most cases) avoid using alpha/beta releases, which could be instable or not supporting your current environment.
I did this for solving it in my Flutter application.
Open the android/app project
Search the text androidx.core:core-ktx:+ in all solutions. In most cases this is found in build.gradle file.
If you found this text in some dependency, change androidx.core:core-ktx:+ to androidx.core:core-ktx:1.6.0
Sync and run again
In my case, I had this problem with the audioplayers: ^0.17.3 dependency. The + sign was causing the error.
I received this error in Android Studio when I created a new Android application. The latest versions of BOTH appcompat and core-ktx in dependencies appear to be the issue.
Open build.gradle, and look in dependencies
Roll back appcompat to 1.3.0
Roll back core-ktx to 1.6.0
Tap "Sync Now" (should be in the top right)
dependencies {
...
//implementation 'androidx.appcompat:appcompat:1.4.0'
//implementation 'androidx.core:core-ktx:1.7.0'
implementation 'androidx.appcompat:appcompat:1.3.0'
implementation 'androidx.core:core-ktx:1.6.0'
...
}
Rerun your program and cross your fingers.
I got the same error
C:\Users\pc.gradle\caches\transforms-2\files-2.1\7a25962662620ee4f1493c07e779c7ef\core-1.7.0\res\values\values.xml:105:5-114:25: AAPT: error:
resource android:attr/lStar not found.
fix this issue by =
replacing compileSdkVersion 30 in build.gradle
to
compileSdkVersion 31
Are you using the #react-native-community/netinfo library? You need to refresh this library if you are using it.
After updating or uninstalling and reinstalling the netinfo library it will work.
The solution for this error may change according to the platform which we are using for building the application.
For Cordova,
Reinstall cordova.plugins.diagnostic plugin
cordova plugin add cordova.plugins.diagnostic --variable ANDROIDX_VERSION=1.0.0
For React Native,
Reinstall #react-native-community/netinfo library
For Android Studio,
Specify specific or stable version of android core dependency in build.gradle(app) file.
dependencies {
...
implementation "androidx.core:core-ktx:1.6.0"
}
Major source of this issue is appcompat library. As a quick fix to run your project you can use appcompat version below 1.4.0 that is you can switch to appcompat version
implementation 'androidx.appcompat:appcompat:1.3.0'
or below.
remove dynamic version in project dependencies in all build.gradle files
example:
"androidx.core:core-ktx:+"
remove + or ^ operator in dependencies { } and mention specific version or stable version
"androidx.core:core-ktx:1.6.0"
source : https://flutter.dev/docs/development/packages-and-plugins/using-packages
If you are using React Native and started experiencing this issue later than November 4th 2022, it could be related to the next known issue: https://github.com/facebook/react-native/issues/35210
In order to try if this is what's causing your issue, you can upgrade react-native to the corresponding patch version specified in that link.
Doing that fixed the "error: resource android:attr/lStar not found" issue and two other issues that started suddenly happening for us, so it might be worth a try!
I resolved this issue by changing these compileSdkVersion 31, targetSdkVersion 31 and classpath 'com.android.tools.build:gradle:4.0.2'
this issue appeared with me in flutter and solved it thanks to this answer
https://issuetracker.google.com/issues/199180389#comment2
just adding the following to the bottom of our app/build.gradle seemed to work for us while our compileSdkVersion and targetSdkVersion remained at 29:
configurations.all {
resolutionStrategy {
force 'androidx.core:core:1.6.0'
force 'androidx.core:core-ktx:1.6.0'
}
}
Add the following to your Project build.gradle:
buildscript {
ext {
androidXCore = "1.6.0"
}
}
If anyone is facing the same issue in ionic cordova, remove these plugin
cordova-plugin-androidx
cordova-plugin-androidx-adapter
And also any plugins dependent on them.
I removed implementation androidx.core:core:1.7.0, the project did not depend on it, and now everything is OK.
Update the following code in your build.gradle(:app) file:
compileSdkVersion 31
targetSdkVersion 31
For Cordova
Uninstall cordova.plugins.diagnostic and cordova-plugin-androidx by running
cordova plugin remove cordova.plugins.diagnostic
cordova plugin remove cordova-plugin-androidx
I solved this problem by down grading my androidx.test.espresso:espresso-core from
androidTestImplementation 'androidx.test.espresso:espresso-core:3.4.0'
to
androidTestImplementation 'androidx.test.espresso:espresso-core:3.3.0'
All you have to do is go in build.gradle and erase the entire line:
implementation "androidx.core:core-ktx:+"
super easy
Update: This was also related to this for me
None of the other answers worked for me. As a last resort I watched a video in a foreign language and it worked for me. I was compiling to sdk 31
add this in the app build.gradle:
android {
...
configurations.all {
resolutionStrategy {
force 'androidx.appcompat:appcompat:1.3.0'
force 'androidx.core:core-ktx:1.6.0'
}
}
}
dependencies {
implementation "androidx.core:core-ktx:1.6.0"
implementation "androidx.appcompat:appcompat:1.3.0"
}
I got the from Saurabh Kumar but it wasn't working in android/build.gradle for some reason.
configurations.all {
resolutionStrategy {
force 'androidx.appcompat:appcompat:1.3.0'
force 'androidx.core:core-ktx:1.6.0'
}
}
Sorry I cannot comment as I just created an account. Thanks to Nitrix and Codemaker for the hints.
This is the complete list of commands in Ionic just to add to Codemaker's answer to get rid of the not found error
Android resource linking failed /Users/xxx/.gradle/caches/transforms-2/files-2.1/5d04bb4852dc27334fe36f129faf6500/res/values/values.xml:115:5-162:25: AAPT: error: resource android:attr/lStar not found.
npm uninstall cordova.plugins.diagnostic
rm -rf plugins/
rm -rf node_modules/
rm -rf package-lock.json
delete from package.json if diagnostic is still somewhere
npm install
ionic cordova platform rm android
cordova plugin add cordova.plugins.diagnostic --variable ANDROIDX_VERSION=1.0.0 // This probably cause an error if Capacitor is used or even lately it also causes error with Cordova, so just use the command below
npm install cordova.plugins.diagnostic --variable ANDROIDX_VERSION=1.0.0
npm install #ionic-native/diagnostic
ionic cordova platform add android
ionic cordova build android
I hope that this will help a bit.
comment this line in build.gradle
dependencies {
implementation fileTree(dir: "libs", include: ["*.jar"])
//implementation 'androidx.appcompat:appcompat:1.4.0'
that work's for me
I've had this happen a few times and it always happens when I upgrade my dependencies.
I solved this each time by updating the following items in my gradle files to the latest versions:
compileSdk
targetSdk
compileSdkVersion
buildToolsVersion
The buildToolsVersion has always been the one that has caused the problem.
when craete new project:
select Use legacy android.support librares
build.gradle (project)
buildscript { dependencies { classpath 'com.android.tools.build:gradle:4.0.2' } }
build.gradle (:app)
android {
compileSdkVersion 31
defaultConfig {
minSdkVersion 23
targetSdkVersion 31
}
}
dependencies {
def core_version = "1.7.0"
// Java language implementation
implementation "androidx.core:core:$core_version"
// Kotlin
implementation "androidx.core:core-ktx:$core_version"
}
Keep the same configuration of the app module for the feature modules so as not to generate inconsistencies.
GL
I solved this problem by down grading my appcompat lib from
implementation 'androidx.appcompat:appcompat:1.4.1'
To
implementation 'androidx.appcompat:appcompat:1.1.0'
For someone still trying to fix this while all of the above does not help, forcing dependency projects to build on the same SDK worked for me:
subprojects {
afterEvaluate {project ->
if (project.hasProperty("android")) {
android {
compileSdkVersion = 31
buildToolsVersion = "31.0.0"
}
}
}
}
see https://github.com/react-native-image-picker/react-native-image-picker/issues/882
My situation is a bit different, I'm using mavenPublisher and don't want to upgrade the sdk version, so I need to put the configuration in library/build.gradle, it works for me.
configurations.all {
resolutionStrategy {
force 'androidx.core:core:1.6.0'
force 'androidx.core:core-ktx:1.6.0'
}
}
One major cause for this issue is the Gradle version difference between an added library and the projects build Gradle. This can result to a resource being unavailable during build time.
Matching the gradle versions can be an easy fix (If the library is you creation).
Use this::
buildscript {
ext {
buildToolsVersion = "31.0.0"
minSdkVersion = 21
compileSdkVersion = 31
targetSdkVersion = 31
androidXCore = "1.6.0"
}
}
Since today, Android Studio can't find the AppCompat themes in styles.xml, but for example AppCompatActivity in code does get recognized. My Android Studio version is 2.2.2, Build #AI-145.3360264
I already tried upgrading to the latest build tools, compile sdk (25) version etc. but it didn't fix the problem.
At the moment I have installed the following (from sdk manager):
android api: 19 and 23
sdk platform tools: 25.0.1
sdk tools: 25.2.3
build-tools: 23.0.2 and 25.0.1
support repository: 40
google repository: 39
and a few others, that shouldn't be necessary to list here.
build.gradle of app:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion '25.0.1'
defaultConfig {
applicationId "xxx.xxxxxxxx.xxxxxxxxx" //not the real applicationId
minSdkVersion 14
targetSdkVersion 19
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled true
shrinkResources true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
debug {
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
compile files('libs/RootTools.jar')
compile 'com.android.support:support-v4:23.+'
compile 'com.android.support:support-v13:23.+'
compile 'com.android.support:appcompat-v7:23.+'
compile 'com.android.support:design:23.+'
compile 'com.android.support:cardview-v7:23.+'
compile 'com.android.support.constraint:constraint-layout:1.0.0-beta4'
compile 'de.hdodenhof:circleimageview:2.1.0'
}
Another solution that worked for me with Android Studio 3.1.2:
delete these from build.gradle if you have them:
'com.android.support:appcompat-v7:27.1.1'
'com.android.support:design:27.1.1'
then sync,
then undo delete,
then sync again.
I encountered this after updating to Android Studio 3.1.
None of the other answers listed here worked for me, however when I switched my appcompat support lib version to the latest 28.0.0-alpha1 then back to 27.1.0 that it was on before, it worked.
Seems the new version of Android Studio lost connection to where the library was synced to and just needed to have it reset.
No need to change anything.
Just press small button on top "Sync Project with Gradle Files"
EDIT: As #Alexey noted, bug still appears in Android Studio v3.1.4
This worked for me:
Click File > Close Project
Reopen the project from Studio's dialog.
That's because of feature called "build cache" that is enabled by default in build Android Plugin since 2.3.0.
It creates files in build cache outside of project folder (in my case -- 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.
That's all.
If you want to disable Build Cache, add android.enableBuildCache=false to gradle.properties file. Then restart Android Studio.
more info here:
https://developer.android.com/studio/build/build-cache.html#disable_build_cache
I have had the same problem. The only solution that worked for me was to manually delete the support libraries in file system and sync the project to let Android Studio download them again.
Steps:
Go to your project folder in File system
Go to .idea\libraries
Delete all the Gradle__com_android_support_****.xml files
Open Android Studio
Select File > Sync with File System
Once that is done, Select File > Sync Project with Gradle Files
Build Project
And now your error should be gone!!!
you can hit file -> invalidate Caches / Restart ... if it doesn't fix the issue you can close the project (file-> close project) and import it (file -> new -> import project.
I switched support lib to version 27.1.1 and problem has been solved. Seems like some bug in 27.1.0
I went through the same problem when I upgraded to alpha-2.
I looked at this link: http://tools.android.com/recent, but the only thing that worked well was:
Change this:
Classpath 'com.android.tools.build:gradle:2.3.0-alpha2'
For this:
Classpath 'com.android.tools.build:gradle:2.2.3'
In your build.gradle (Project)
Only this worked for me
Close project (File> Close Project)
Import / Re-Open project again (NOT from Recent)
Error should be resolved now.
If that fails, try below-
Open build.gradle, remove appcompact-v7 dependency and sync project.
Add appcompact-v7 dependency and sync.
I encountered same problem like this.Just the difference is I was using Studio 2.2.3. This is what solved my problem:
In my project level gradle I had:
classpath 'com.android.tools.build:gradle:2.3.0-alpha2' (which was a result of updating studio)
which I replaced with:
classpath 'com.android.tools.build:gradle:2.2.3'
I think you should look for a compatible classpath for your gradle configuration.
I was having the same issue after linking Firebase to my app. Updating the build.gradle in the app module did the trick, updated to:
implementation 'com.android.support:appcompat-v7:27.1.1'
implementation 'com.android.support:design:27.1.1'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.google.firebase:firebase-database:11.8.0'
I had also the same problem when I upgraded my android studio from 2.2.2 to 2.3 Canary Version.
Although the new beta version of 2.3 is released yet it is using the gradle plugin of 2.2.3 which is of stable version.
So just change the classpath dependency in buildscript of build.gradle project level from alpha to 2.2.3 and sync it. It'll resolve the issue or change to the more appropriate version with respect to your channel version.
More on gradle watch this Gradle Recipes for android Ken Kousen - Gradle Summit 2016
https://www.youtube.com/watch?v=4L6wHTVmxGA
In newer versions of Android Studio, we are asked to use 'AppCompat'. Some users uncheck that and still use the Theme.AppCompat. That makes up this error. Same happened with me.
Solution is to add this line in your build.gradle (app).
compile 'com.android.support:appcompat-v7:26.1.0'
#Daniel Wilson made a comment in one of the answers that solved this issue for me. I wanted to add add as an answer to draw more attention to this solution.
Updating compileSdkVersion and targetSdkVersion from 26 to 27 (and then of course updating the dependencies) eliminated the errors for me.
Mine was fixed by deleting the .gradle file from the folder and re-importing the project in Android Studio
I also faced the problem with Android Studio 3.1 , syncing does not help me.
Then I switched back to
`'com.android.support:design:27.1.0'` from : `'com.android.support:design:27.1.1'`
and added android.enableBuildCache=false to gradle.properties to disable build cache
This is weird, I encounter this problem as below:
Android Studio is 3.1.2
support lib version is 27.0.0
I solve this by below:
change support lib version to 27.1.0, and "Sync Project with Gradle Files", then this error disappear
change support lib version to 27.0.0，and "Sync Project with Gradle Files", then this error not appear again
Deleted .idea and .gradle from project folder.
Then sync with gradle files, it worked.
I ran into the same problem when updating the Android Studio software.
What I did was this:
Go to the Gradle Settings as follows (this path is for Mac, but should be similar on Windows):
Android Studio -> Preferences -> Build, Execution, Deployment ->
Gradle.
Then pick "Use default gradle wrapper (recommended)".
If you already have that option chosen then your problem must lie somewhere else.
I changed my gradle version from
classpath 'com.android.tools.build:gradle:2.3.0'
to
classpath 'com.android.tools.build:gradle:2.2.3'
and it works now!
In Android Studio 3.1.3, the simple work around:
"Sync Project with Gradle Files"
If none of these methods mentioned by other contributors does not work for you..
Then please simply ignore this...
Even flutter officials also said to ignore these errors..
Caution*** Only ignore after trying all the methods.If above methods solve your errors then fine otherwise you can ignore these..
This type of errors happen after installing latest version of flutter sdk,gradle ,android studio and other plugins -packages
If you are using latest version then you have to ignore these errors.
I've updated my Android SDK and also the PlayServices Library. Nothing seems to work right now.
The import com.google.android.*; does not exists, and I've added the 'compile' lines on the Gradle File.
Have someone experienced this? How can I solve this?
EDIT
apply plugin: 'com.android.library'
android {
compileSdkVersion 21
buildToolsVersion '22.0.1'
defaultConfig {
minSdkVersion 14
targetSdkVersion 21
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 'com.android.support:appcompat-v7:22.1.1'
compile 'com.google.code.gson:gson:2.3'
compile 'org.roboguice:roboguice:3.0.1'
compile 'com.google.android.gms:play-services:7.3.0'
}
That's the Gradle File for a Module.
If you use Android Studio and want to use the latest Google libraries via Gradle dependency, you will have to update the
You can do this via Tools -> Android -> SDK Manager -> You have to update the stuff under Extras
Also make sure that you are not using the Offline Mode of Gradle. You can find this option via (I did this on a Mac) Android Studio -> Preferences -> Gradle -> (Global Gradle Settings) Offline Work
Make sure this option is not checked.
Something which was mentioned by #CommonsWare already (and i add it just to sum up this answer) is to sync the project via the Gradle files. You can do this via the toolbar as seen here:
Or via the menu Tools > Android > Sync Project with Gradle Files
If nothing of the above is working for you, it would be really helpful if you can try to build the project via the command line or the terminal with the following command:
gradle clean build --debug
and then post the output here. It will hopefully show why it can't resolve the library.
Try Tools > Android > Sync Project with Gradle Files and see if that clears up your problem. There's a bug where Android Studio does not always warn you to do this with the yellow banner on the editor.
I'm having some strange issue with Android Studio recently. I'm trying to build a project after few modification in code. But the APK got installed is of old code. (I found this by debugging. When I debugged it was going to empty lines) But all my latest code are saved and it's there. I have tried the following steps which I know.
Delete the build folders of Project and Module manually > Restart Studio > Clean Project > Rebuild Project
Restart Android Studio and (I don't know why I restarted but I did that too)
Invalidate and Cache Restart
At some point I found a issue in XML related to style attribute for button which was like style:attr/buttonBarButtonStyle I later corrected to style:"?android:attr/buttonBarButtonStyle"I hope this change is correct because it don't show any more error.
And finally it doesn't give me any error in stacktrace. Project always shows BUILD SUCCESSFUL
Nothing above helped me.
EDIT 1 : I have updated my Android Support Library to 22.1.1 latest version which released a couple of days ago
EDIT 2 : I uninstalled Android Studio. Deleted Android Studio related folders in C:\Program Files\Android\Android Studio and also deleted C:\Users\MyUserName\.android & .AndroidStudio & .gradle folders. And did fresh install of Android Studio. Later I imported a same project and build it. Again it happens in same way! I have also tried running the same project in other lap and it runs without any problem. I Don't know what else I'm missing here
EDIT 3 : Updating my build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.0"
signingConfigs {
debug {
storeFile file("./debugkeystore/MyAppDebug.keystore")
}
}
defaultConfig {
applicationId "com.example.myapp"
minSdkVersion 14
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 'com.android.support:appcompat-v7:22.0.0'
compile 'com.google.android.gms:play-services:6.1.+'
compile 'com.android.support:recyclerview-v7:+'
compile 'com.android.support:support-v4:22.0.+'
compile 'com.android.support:cardview-v7:21.0.+'
}
I just again uninstalled AndroidStudio and clear the registery and made it like a fresh install for the 3rd time and I don't know how but this time it worked! But didn't get what exactly happened!
I solved it by rebuilding the project. Go to the build tab
you should configure Run/Debug Configuration again and add to "Before launch" section "Gradle-aware Make"
that's it
I want to build an app in Android Studio with the support library but I get the following error when adding the dependency for the support library:
Error:Failed to find: com.android.support:support-v4:19.1.0
Here is my build.gradle file
apply plugin: 'com.android.application'
android {
compileSdkVersion 19
buildToolsVersion '20'
defaultConfig {
applicationId "sample.myapplication"
minSdkVersion 15
targetSdkVersion 19
versionCode 1
versionName "1.0"
}
buildTypes {
release {
runProguard false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:support-v4:19.1.0'
}
I have downloaded the support library via the sdk manager.
Ok, found the problem. The Android support repository was missing. After installing and restarting Android Studio it worked.
If you are using Android Studio, then as an addition to changing the build.gradle file manually, you can also lookup the dependency via the library dependencies under the Project Structure menu item.
Double clicking that dependency will generate this line in build.gradle:
dependencies {
compile 'com.android.support:support-v13:+'
}
And also, if you are wondering what this library is about, it's described at the developer pages at developer.android.com; Support Library.
My Android Studio version is 1.1. I select tools->Android->SDK Manager, check the Android Support Library then click Install packages, solved this issue.
In my case the solution was as simple as running Build:Make Project. No amount of gradle syncing or clearing caches would do it. Of course, that required getting my project into a state where it would build successfully.
In my case I needed to add Google Maven repository.
It shows as part of the error in Android Studio and only needed to click on it to add itself.
Then Gradle built the project on its own.
Following the instruction here helped me. For whatever reason when I had to reinstall the latest version of android studio the initial download of the extras section android support library failed. I simply retried it. Followed the steps mentioned and verified it was added to the build.gradle file and did a rebuild project and good to go.
http://developer.android.com/tools/support-library/setup.html