I am trying to make my first Android App.
Downloaded and installed the Android Studio, and followed the tutorial to start a new simple "Hello world" app, just to get started, and see that everything works.
But it does not.
I have not written one single line of code myself, so the source is completely generated by Android Studio itself.
I get this error:
Failed to resolve: com.android.support:appcompat-v7:25.+
and
Failed to resolve: com.android.support.test.espresso:espresso-core:2.2.2
When creating the project, I choose API level 15.
In the SDK manager, I have both API level 15 and 25 installed ( I think 25 was default installed, and I have installed API 15 or vice versa).
I have googled a lot, and tried different SDK's, but always the same error. No matter what versions I try to use, it fails with the same message.
Why doesn't the very first tutorial work?
I am a bit confused, if it is so difficult to make the first "Hello world" app :0)
Screenshor of error
Thanks in advance !
Go to File -> Settings -> Build,Execution,Deployment -> Build Tools -> Gradle and then uncheck Offline and then resync the project and rebuild even if all of the above doesn't work try reinstalling the whole setup
#Rahul
Here is the Screenshot of my Tools installed.
Google Repository installed too
Screenshot of Tools
#Rahul Kumar
My build.gradle below.
Project is created using API 15 as minimum.
apply plugin: 'com.android.application'
android {
compileSdkVersion 25
buildToolsVersion "25.0.2"
defaultConfig {
applicationId "dk.surlution.app3"
minSdkVersion 15
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.+'
compile 'com.android.support.constraint:constraint-layout:1.0.1'
testCompile 'junit:junit:4.12'
}
Related
The process gets stuck if I am trying to run the app (even when I start from a fresh new project) both on an emulator (Android 5.0 or 6.0) or on my phone (Android 7.1). Following some results I found online, I tried to run gradle offline but it did not work. I did also try the solutions suggested on this link, with no success. On Ubuntu, this seems to be caused because of a library issue concerning 32-bit software running from a 64-bit system, which can be solved installing the appropriate library, but I could not find any guidance when running Android Studio on Windows.
The build.gradle file (Module: app) says:
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
defaultConfig {
applicationId "com.example.denny.zuzuplayer"
minSdkVersion 21
targetSdkVersion 26
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
The build.gradle (Project) says:
buildscript {
repositories {
google()
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:3.0.1'
// NOTE: Do not place your application dependencies here; they belong
// in the individual module build.gradle files
}
}
allprojects {
repositories {
google()
jcenter()
}
}
task clean(type: Delete) {
delete rootProject.buildDir
}
Thanks!
I noticed that Android Studio has a tab called Gradle Console, which lists every gradle process that is currently running, in detail. That is how I got the message that the "aapt" instance was not fine the old rascal, due probably to the antivirus software. This is what the console told me:
> Exception in thread "queued-resource-processor_16"
> java.lang.RuntimeException: Timed out while waiting for slave aapt
> process, make sure the aapt execute at
> C:\Users\Denny\AppData\Local\Android\Sdk\build-tools\26.0.2\aapt2.exe
> can run successfully (some anti-virus may block it) or try setting
> environment variable SLAVE_AAPT_TIMEOUT to a value bigger than 5
> seconds
I have no idea how to "set environment variable SLAVE_AAPT_TIMEOUT to a value bigger than 5 seconds". I Googled the issue for a few minutes when I wondered, why not try the other possible solution first?
I added the SDK folder to my antivirus exceptions (aapt is an instance of SDK, for that matter), and voilà, the project is finally building. Hurray!
I just got this error and was able to resolve it by ensuring that the two Glide libraries I'm using refer to the same version.
This caused the error:
implementation 'com.github.bumptech.glide:glide:4.10.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.0.0'
And this fixed it:
implementation 'com.github.bumptech.glide:glide:4.10.0'
annotationProcessor 'com.github.bumptech.glide:compiler:4.10.0'
I was able to determine that the error was related to the Glide libraries, at least my configuration of them in the module's build.gradle file, by using Denny's suggestion to examine the Gradle tasks. Opening the Gradle Tool Window shows a list of tasks. The Event Log indicated that the error was related to the "assembleDebug" task. So, I double-clicked on that task in the Gradle Tool Window to execute it, and some useful information appeared in a tab on the Run console.
I just upgraded my Android studio from 2.3 to 3.0.1. But I get this error message(I have already installed API 27 ) and don't know how to fix it, because I couldn't find the the build tools version in new version of android studio!
Error:Failed to find Build Tools revision 26.0.2 Install Build Tools 26.0.2 and sync project
The gradle files are changed, also the project structure has only one tab!
Edit:
this is the content of `app/build.gradle:
apply plugin: 'com.android.application'
android {
compileSdkVersion 27
defaultConfig {
applicationId "com.m.finalocr"
minSdkVersion 21
targetSdkVersion 27
versionCode 1
versionName "1.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:27.0.2'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
}
As you can see, there is no buildToolsVersion in it. So, why my android studio looks for this specific version(26) of that when I have the 27 version installed on my computer? Also, where can I see the buildToolsVersion "26.0.2" and change it tobuildToolsVersion "27.0.3" ` ?
Your project is looking for Build Tools version 26.0.2, but you haven't yet downloaded and installed it on your computer.
To download it, go to Tools > Android > SDK Manager, then click on the "SDK Tools" tab at the top of the new window. Then select the "Show Package Details" checkbox in the lower right-hand corner. Finally, scroll down to where you see 26.0.2, check the checkbox next to it, and click "OK" to begin the install process.
If you want to change the Build Tools version in your project, that is specified in project's build.gradle file (in the 'app' module). Open the file and either add or update the Build Tools version you want to use by adding/updating the following property in the 'android' section:
android {
buildToolsVersion "27.0.3"
...
}
Trying to install MPAndroidChart, I tried to follow the instructions in the Readme for adding the library as a gradle dependency.
EDIT:
I didn't edit the top-level build.grade file, only the build.gradle file in my app directory. The latter looks like this:
apply plugin: 'com.android.application'
android {
compileSdkVersion 23
buildToolsVersion "23.0.0"
useLibrary 'org.apache.http.legacy'
defaultConfig {
applicationId "com.gmail.konstantin.schubert.workload"
minSdkVersion 16
targetSdkVersion 23
versionCode 7
versionName "1.1.5"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
repositories {
maven { url "https://jitpack.io" }
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.0.0'
compile 'com.google.guava:guava:17.0'
compile 'joda-time:joda-time:2.8.2'
compile 'com.android.support:design:23.0.0'
compile 'com.github.PhilJay:MPAndroidChart:v2.2.3'
}
As you can see, I have added the maven repository and the compile instruction in the dependencies.
However, Android Studio gives me an error:
Error:(32, 13) Failed to resolve: com.github.PhilJay:MPAndroidChart:v2.2.3
EDIT: Here are the instructions as given by JitPack: https://jitpack.io/
I believe I followed them to the letter.
What am I doing wrong? What am I forgetting?
EDIT: The question is really following the wrong lead. Looking at my gradle log, I discovered the following error:
* What went wrong:
A problem occurred configuring project ':app'.
Could not resolve all dependencies for configuration ':app:_debugCompile'.
Could not resolve com.github.PhilJay:MPAndroidChart:v2.2.3.
Required by:
workload:app:unspecified
Could not GET 'https://jitpack.io/com/github/PhilJay/MPAndroidChart/v2.2.3/MPAndroidChart-v2.2.3.pom'.
> peer not authenticated
This is a much better lead to follow and can easily be googled.
please edit your top level gradle file like this:
allprojects {
repositories {
jcenter()
maven { url "https://jitpack.io" }
}
}
other thing.. take a look at gradle console in the bottom right of android studio, and show me the log.
It is a problem with java/gradle on linux not recognizing the ssl certificate. The easiest solution is to use java 8, see https://www.jitpack.io/docs/FAQ/.
I am on Debian 8.5 Jessie and using openjdk 8 (instead of the stock 7 version) from jessie/backports solved the issue (building gnucash-android) on my system.
I am developing an Android library that depends on Google Play Services.
The instructions provided by Google on how to setup Google Play Services only specify the steps to follow when adding it to an application project and not a library.
I tried following the same steps for my library and ended up with the following build.gradle file:
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.0.0-alpha3'
classpath 'com.google.gms:google-services:2.0.0-alpha3'
}
}
apply plugin: 'com.android.library'
android {
compileSdkVersion 23
buildToolsVersion "23.0.2"
defaultConfig {
minSdkVersion 15
targetSdkVersion 23
versionCode 1
versionName "1.0"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
repositories {
jcenter()
mavenCentral()
}
dependencies {
compile fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:appcompat-v7:23.1.1'
compile 'com.android.support:support-annotations:+'
provided 'com.google.android.gms:play-services-auth:8.4.0'
}
apply plugin: 'com.google.gms.google-services'
The problem with this is that when building the project, I get the following exception:
* What went wrong:
Execution failed for task ':processDebugGoogleServices'.
> File google-services.json is missing from module root folder. The Google Services Plugin cannot function without it.
I understand this because, as stated in the Google Play Services documentation (https://developers.google.com/android/guides/setup) , it depends on a json file for configuration. However, since I am building this as a library, I wanted the google-services.json file to be added in the project that will use my library instead of putting it in the library itself.
So how can I do this? How can I compile my library that depends on classes defined in Google Play Services but not really configure Google Play Services inside the library and let it be done by the application that consumes my library?
Thank you!
It was simpler than I thought.
All I had to do was remove the lines classpath 'com.google.gms:google-services:2.0.0-alpha3' and apply plugin: 'com.google.gms.google-services' from the library's build.gradle file and then add them only to the gradle file in my application project that depends on this custom library.
You can generate and add the google-services.json using instruction on this page
It has a step by step set of instructions for generation of the file.
I'm using Android Studio and when I try to "Sync Project with Gradle Files" or "Clean Project" it fails. I see the message:
Gradle 'MyTestProject' project refresh failed:
Artifact 'com.android.support:support-v4:19.1.0:support-v4.jar' not found.
I see in my MainActivity that import com.google.android.gms.ads.*; is having a problem, saying, "Cannot resolve symbol 'android'."
I don't even know if these two are related. In the past, I have been able to add support-v4 to the dependencies, and everything was fixed. However, I am trying that again right now, and I get the same project refresh failed message.
Oh yeah... my minSdkVersion is 14, and my targetSdkVersion is 19.
Any ideas?
EDIT:
Ok, I forgot to mention that I am including the Google Play Services as a dependency, but that doesn't help. For testing, I went ahead and created a new, bare-bones, project and gradle syncs fine if I don't touch it. However, as soon as I add the Google Play Services dependency to the gradle file, I get the same fail message noted above. Here is my gradle file and that fail message once again:
apply plugin: 'android'
android {
compileSdkVersion 19
buildToolsVersion '19.0.3'
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.google.android.gms:play-services:4.+'
compile fileTree(dir: 'libs', include: ['*.jar'])
}
Message:
Gradle 'SimpleExample' project refresh failed:
Artifact 'com.android.support:support-v4:19.0.1:support-v4.jar' not found.
I'm thinking that something else must be going on?
You need to add the Google Play Services dependency:
compile 'com.google.android.gms:play-services:4.4.52'