Develop Reference

Android Studio: Can't resolve imports (android.support.*)

AndroidStudio is driving me crazy again...
I got a one year old AS project (that worked just fine) from my Win 7 PC and want to add stuff to it on my Win 10 workstation but even though AS says that the build completed successfully, it won't resolve a couple of imports, which leads to loads of red squiggly lines:
import android.support.v4.app.ActivityCompat;
import android.support.v4.content.ContextCompat;
import android.support.v7.app.AlertDialog;
import android.support.v7.app.AppCompatActivity;
Android Studio: 2.1.3
Build tools: 25.0.2 (was installed before installing AS), 23.0.3 (installed
after first errors), 27.0.3 (installed after the other 2)
APIs: 19, 21, 23, 24
Android Support Repository 47
Yes, there's an entry for Maven in the "build.gradle" file that is directly in the project folder.
The "app" gradle file:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "27.0.3"
defaultConfig {
applicationId "com.mycompany.myapp"
minSdkVersion 19
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.+'
compile 'com.android.support:support-v4:23.0.3'
}
The first "compile" has a squiggly line too and the message says:
All com.android.support libraries must use the exact same version specification (mixing versions can lead to runtime crashes).
Found versions 28.0.0-alpha1, 23.4.0.
If I use "compile 'com.android.support:support-v4:28.0.0-alpha1'" the build fails at ":app:processDebugResources" and it complains:
AAPT2 error: check logs for details
The logs begin with:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:processDebugResources'.
What exactly does AS want (apart from getting on my nerves)?

Have you tried "Invalidate Caches/ restart" in Android Studio??
I have also faced issues like this, which was solved by this.

Clear your cache and do a ./gradlew --refresh-dependencies at the root of your project.
Saved my ass pretty often.

compile 'com.android.support:support-v4:23.0.3'
remove above line and sync project : File > Sync project with gradle files

Gradle sync failed: Unable to find method

I try to import a project in Android studio. When importing it, i've got an Error with Gradle :
Gradle sync failed: Unable to find method
'org.gradle.api.artifacts.Configuration.setExtendsFrom(Ljava/lang/Iterable;)Lorg/gradle/api/artifacts/Configuration;'.
I have tried :
Re-download dependencies and sync project: Fail (same error).
Stop Gradle build processes: Fail (same error).
Delete the .graddle in the home directory: Fail (same error).
Invalidate cache and restart Fail (same error).
Uninstall and reinstall Android studio and SDK: Fail (same error).
/build.gradle :
// Top-level build file where you can add configuration options common to all sub-projects/modules.
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.1.0'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
jcenter()
}
}
/app/build.gradle
apply plugin: 'com.android.application'
//apply plugin: 'android'
android {
compileSdkVersion 17
buildToolsVersion '20.0.0'
defaultConfig {
applicationId 'xxx.xxx.xxx'
minSdkVersion 17
targetSdkVersion 17
versionCode 1
versionName '1.0'
}
buildTypes {
release {
minifyEnabled true
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
buildPB {
debuggable false
jniDebuggable false
renderscriptDebuggable false
zipAlignEnabled true
}
}
productFlavors {
}
// lintOptions {
// abortOnError false
// }
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
// You must install or update the Support Repository through the SDK manager to use this dependency.
compile ('org.simpleframework:simple-xml:2.7.1') {
exclude module: 'stax'
exclude module: 'stax-api'
exclude module: 'xpp3'
}
compile 'net.sf.opencsv:opencsv:2.3'
compile 'de.greenrobot:greendao:1.3.7'
// You must install or update the Support Repository through the SDK manager to use this dependency.
// compile 'com.android.support:support-v4:19.+'
}

I fixed the error by changing the following things.
Open the file under your-app-project\your-app-name\gradle\wrapper\gradle-wrapper.properties
replace the old URL path by this one:
distributionUrl=https\://services.gradle.org/distributions/gradle-2.10-all.zip
Rename the folder name from "...\1.12" to your-app-project\your-app-name\.gradle\2.10
Change the classpath of your-app-project\your-app-name\build.gradle to
classpath 'com.android.tools.build:gradle:2.1.2'
Replace runProguard of your-app-project\your-app-name\app\build.gradle by minifyEnabled
Click Retry on the error reminder or Reopen your Android Studio and project.
I am using the latest versions of Android Studio and Gradle.

edit Project >> App >> gradle >> wrapper >> gradle-wrapper.properties
distributionUrl=http\://services.gradle.org/distributions/gradle-2.10-bin.zip
rebuild the project (restart ide in your mind)

Project >> App >> gradle >> wrapper >> gradle-wrapper.properties
https\://services.gradle.org/distributions/gradle-4.1-all.zip
This will surely work. I was having same issue. Solved by this.

This issue appears when I updated my android studio to 3.1.1
1.
I have resolved it by changing:
classpath 'com.android.tools.build:gradle:3.1.1'
in build.gradle (project)
2.
change:
distributionUrl=https\://services.gradle.org/distributions/gradle-4.4-all.zip
in gradle-wrapper.properties.
(you can check it in explorer C:\Program Files\Android\Android Studio\gradle\gradle-4.4)

I faced similar issue and i resolved it by
Android Studio Version 3.0.1
1.Change the classpath of your-app-project\your-app-name\build.gradle to classpath 'com.android.tools.build:gradle:3.0.1'.
2.Replace the old URL path by this one: distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip
My gradle file was of version 4.1
ie; file in following location:(may differ slightly in your machine)
C:\Program Files\Android\Android Studio\gradle\gradle-4.1

Under gradle->gradle-wrapper.properties
replacing
distributionUrl=https\\://services.gradle.org/distributions/gradle-2.2.1-all.zip
with
distributionUrl=https\\://services.gradle.org/distributions/gradle-4.1-all.zip
solved the issue.

This issue happened to me today with Android Studio 2.2 Beta2 on Windows 7 64-bit.
None of the solutions mentioned helped. Finally I was able to resolve the issue by re-importing my project.

For me the solution was to open Settings -> Build, Execution, Deployment -> Gradle and check "Use default gradle wrapper (recommended)".

I was able to copy over the /.gradle folder from a new Android project into the one that was having the problem. Then I restarted Android Studio and did a clean/build. This resolved my issue.

After 1 hour R&D Not Solution as worked for me...
But still i have solution follow this its work 100
step 1: upgrade your build.gradle(Project:<your project name>)
Example : classpath 'com.android.tools.build:gradle:2.1.3' // old gradle file
classpath 'com.android.tools.build:gradle:2.3.1' // upgraded file
OR
classpath 'com.android.tools.build:gradle:3.1.0'
Step 2 : Upgrade compileSdkVersion buildToolsVersion
Example : compileSdkVersion 23 buildToolsVersion "23.0.3 // old api's
compileSdkVersion 25 buildToolsVersion "25.0.2" // upgraded api's
Step 3: upgrade gradle-wrapper.properties
Example : distributionUrl=https\://services.gradle.org/distributions/gradle-2.14.1-all.zip // old or any version
distributionUrl=https\://services.gradle.org/distributions/gradle-4.1-all.zip // new or any version
Step 4 : finally goto build>rebuild project...
......End #Ambilpura

The answer is partially reduntant, but it's for those who are confused with what version of gradle distribution to add.
It's the gradle version that's installed on your machine.
Ex:
Check your gradle version by:
"gradle -v" (mine was 5.4.1)
Update the file "your-app-project\your-app-name\gradle\wrapper\gradle-wrapper.properties" with
distributionUrl=https://services.gradle.org/distributions/gradle-5.4.1-all.zip
And done! It solved the problem for me.

Execution failed for task :app:compileDebugJavaWithJavac

I picked up someone else's project and when I asked AS to run the project on my AVD, it pops me an error:
Error:Execution failed for task ':app:compileDebugJavaWithJavac'.
Compilation failed; see the compiler error output for details.
Here is my build.gradle
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
applicationId 'ca.gggolf.aminutegolf'
minSdkVersion 19
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
productFlavors {
}
}
dependencies {
compile fileTree(include: ['*.jar'], dir: 'libs')
testCompile 'junit:junit:4.12'
compile 'com.android.support:appcompat-v7:23.1.1'
}
I don't know what to do.. Everything else works fine and the app was working a couple of years ago when it was first made.

Enable multidex for your project. Add below line to gradle defaultConfig:
multiDexEnabled true
Also add multidex dependency to gradle's dependencies :
compile 'com.android.support:multidex:1.0.1'

Check your location address of exist project. if you use special character like :
( / | \ + = * ... )
In folder and sub-folders name, you should change it and check it out.
I changed my folder name from "UI/UX" to "UiUx" and its done :)

I'm back at this question simply because it got many views.
First, thanks all for the help. I managed to run the app by creating a new project on Android Studio and importing classes one at a time while making sure the code was still fine. Maybe creating a new project added some parameters that were not present in the older version of the project.
If someone has a better explanation, feel free to answer!

Check your lib versions. In my case it was old Realm plugin that was an issue.

Sometimes this error happens to me. I don't have any java compiler errors.
And seems this issue related to the build cache of a project.
So it can be solved like this
Build/Clean Project
Build/Make Project or Build APK

Build with below command, this command will point the exact point in source code where the compilation error is getting generated.
gradlew assembleDebug --stacktrace

Android Studio 1.2.2, build successful but no apk in build/output?

I began a few days ago with Android Studio 1.2.2 in order to make some simple app by curiosity. I did a first one and was able to get the .apk without any problem in app>build>output.
But since yesterday I can't get any .apk in output folder although build is successful. Maybe have I done an unintentional mistake ? I see .gradle and output directories are excluded (folder is red) and I've got the problem since it is, why are those excluded and what would be the manipulation to solve this ?
Here's a screenshot
I've searched and read some threads but didn't manage to find the solution to my problem, I guess it must be simple but as a noob I still can't figure some things :)
Thanks a lot for your help,
Aaron

After successful build, run your application. Then you will get the APK folder inside of the app/build folder.

Add this to app/build.gradle: to android section:
signingConfigs {
release {
storeFile file('../../android-release-key.keystore')
storePassword "pass"
keyAlias "alias"
keyPassword "keypass"
}
}
buildTypes {
release {
signingConfig signingConfigs.release
}
}

By default Android Studio 1.2.2 store apks in build-> artifacts->project_name->aproject_name.apk

The Executing tasks of make project command in Android Studio 1.2.2 are different from those in the previous version. In 1.2.2 , the executing tasks are [:app:compileDebugSources, :app:compileDebugAndroidTestSources] while in previous version the executing tasks are [:app:assembleDebug, :lib:bundleDebug]. That is why you can not find .apk.You can get the .apk by running your application.

Open messages tab then open Information:See complete output in console
This will show you more details about what happened

I was using Azure DevOps and my case issue was related to gradle task that I was providing.
Wrong task:
- task: Gradle#3
displayName: 'gradlew $(Build.DefinitionName)'
inputs:
tasks: 'bundleskyandroid'
Changed to assembleskyandroid and it worked.
- task: Gradle#3
displayName: 'gradlew $(Build.DefinitionName)'
inputs:
tasks: 'assembleskyandroid'
My build.gradle file
productFlavors
{
skyandroid
{
applicationId 'io.xxxxxx.skyandroid'
versionCode 7
versionName '1.10'
manifestPlaceholders = [manifestApplicationId: "${applicationId}"]
signingConfig signingConfigs.skyandroid
}
}

Android build.gradle fail Android studio

I program with Android Studio.
Error message:
Error:Execution failed for task ':app:dexRelease'.
com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command 'C:\Program Files\Java\jdk1.8.0_25\bin\java.exe'' finished with non-zero exit value 2
And my build.grandle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 22
buildToolsVersion "22.0.1"
defaultConfig {
applicationId "theToolcome.theTool.theTool"
minSdkVersion 15
targetSdkVersion 22
versionCode 4
versionName "1.1"
}
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-analytics:7.3.0'
}
I didn't change anything, I only added the Google analytics. What's my problem? I search also on the stackoverflow, but nothing worked for me.
I also imported the project again, but nothing helped me.

For everyone reading.
The problem was that he downloaded a sample from the internet that contained anaylitics jar file, and he also told Android Studio to compile it for him via compile 'com.google.android.gms:play-services-analytics:7.3.0' so the end effect was that there were two libraries with mostly the same classes and that failed the build.

As the official documentation states out, your applications method references have exceeded the maximum limit:
Note: If the number of method references in your app exceeds the 65K limit, your app may fail to compile. You may be able to mitigate this problem when compiling your app by specifying only the specific Google Play services APIs your app uses, instead of all of them. For information on how to do this, see Selectively compiling APIs into your executable.
Instead of importing the entire Google Play Services, you should import the part that you use.
So instead of compile 'com.google.android.gms:play-services-analytics:7.3.0' you could use compile 'com.google.android.gms:play-services-maps:7.3.0', if what you want is GoogleMap API.
Check the Analytical Table and select the part that you want, then import it and you should be fine.

Project structure > JDK Location > Change it to a 1.7 version of the jdk.

In your message log you can scroll down to errors there can you see what the error is and maybe you can solve it at yourself. Otherwise one of the forum members can maybe help if you send the error.