I tried to add a Maven dependency to my project, which uses Gradle, by adding these lines to the build.gradle file in Android Studio:
repositories {
mavenCentral()
}
dependencies {
compile files('libs/android-support-v4.jar')
compile 'org.roboguice:roboguice:2.0'
}
The project seems to compile well, but there's no way to reference Roboguice classes inside my project's code. I feel like I'm missing something, namely, how does Gradle download the dependency and where will it store it? How should I fix my project?
Using the command line, in the root of your project, run :
./gradlew clean && ./gradlew build
Then recompile your project in studio and you should see your new dependencies.
EDIT: At the time of the answer, Android studio didn't propose the "Gradle sync" button. It now does, so rather than using the command line, you can hit the button, and it will basically run ./gradlew clean && ./gradlew build for you.
Anyway, it's always good to know how to do it in command line :)
The name of the button is: Sync Project with Gradle Files
See the screenshot below.
On Android Studio I just press the Sync Project with Gradle File button, left of the AVD Manager did the job. No restart, no ./gradlew clean or ./gradlew build.
You can also navigate through Tools-->Android-->Sync Project with Gradle File.
I was having the same problem. I tried all solutions suggested without success. Then I simply closed and opened again Android Studio and it worked!
Nothing here worked for me. What did work was File -> Invalidate Caches / Restart...
This is an extremely annoying bug, that happens way more often that it should. The build tools should not be a hindrance to development.
go to intellij preferences and enable gradle auto import dependencies
Related
I have an Android App in Android Studio. When I build project with Gradle File,it gives me one error at compile time.
Error Report:
Error:org.gradle.api.internal.changedetection.state.DefaultFileCollectionSnapshotter$FileCollectionSnapshotImpl cannot be cast to
org.gradle.api.internal.changedetection.state.OutputFilesCollectionSnapshotter$OutputFilesSnapshot
Please Give me solution about this error.
1.delete {project dir}/.gradle/{gradle distribution version dir}
{gradle distribution version dir} is whatever the gradle distribution version you use (ref: https://developer.android.com/studio/releases/gradle-plugin.html#revisions). For example, it can be "1.9" or "2.10" or some other version number.
2.Sync Project with Gradle File
This is what worked for me:
Android Studio -> File -> Invalidate Caches and Restart
Stoping the gradle daemon worked for me.
go to terminal and run ./gradlew --stop
Rebuild the project.
For me, I have tried to:
(Doesn't Work):
invalidate caches.
stop third-party plugins.
remove gradle repository.
remove {project dir}/.gradle/2.*(which are not current gradle version)
(Work):
Finally, the answer is like #MAC113's,
delete {project dir}/.gradle/2.10 (2.10 is my current gradle version)
None of those solutions working for me. I ended up by:
Clone my project to a new folder
Remove .gradle, .idea folders
Add as a new project (File > Open > [new folder])
It works! It's a weird issue that I've ever met.
Easy solution! Just fixed on my side. It was a project exported from Unity Studio.
After exporting from Unity, the gradle was like com.android.tools.build:gradle:2.1.0
I then changed it to com.android.tools.build:gradle:2.2.0 and it worked.
Also never forget to change the repositories from mavencenteral to jcenter().
buildscript {
repositories {
jcenter()
}
dependencies {
classpath 'com.android.tools.build:gradle:2.3.3'
}
}
If you using GreenDao You should update it to the lastest version
classpath 'org.greenrobot:greendao-gradle-plugin:3.3.0' // add plugin
implementation 'org.greenrobot:greendao:3.3.0'
Deleting .gradle folder works for me
I get this error when trying to build my project after changing laptop and updating to Android Studio version 0.8.2.
FAILURE: Build failed with an exception.
What went wrong:
Task '' not found in root project 'MyProject'.
Try:
Run gradle tasks to get a list of available tasks. Run with --stacktrace option to get the stack trace. Run with --info or --debug option to get more log output.
BUILD FAILED
Here are my Gradle files:
Top Level settings.gradle
include ':MyProject'
build.gradle in MyProject:
apply plugin: 'com.android.application'
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath "com.android.tools.build:gradle:0.12.+"
}
}
repositories {
mavenCentral()
}
android {
compileSdkVersion 20
buildToolsVersion "20"
defaultConfig {
minSdkVersion 14
targetSdkVersion 20
}
}
dependencies {
compile 'de.timroes.android:EnhancedListView:0.3.0#aar'
compile 'com.nineoldandroids:library:2.4.0'
}
Top level build.gradle is empty
Though late in answering, this is a hard one to Google (the single quotes) and it’s not clear what’s happening. I don't have the reputation yet to comment or ask for scope (or post 3 links), so this answer may be a little tedious.
To answer fast, you may have multiple Gradle plugins in your project.
Synchronize Gradle Wrapper and Plugins
My issue seemed to start with a corrupted IML file. Android Studio (between closing and reopening a project) began complaining an IML was gone (it wasn’t) and a module should be deleted, which I declined. It persisted, I upgraded to AS 0.8.7 (canary channel) and got stuck on the OP issue (Task '' not found in root project). This completely blocked builds so I had to dig in to Gradle.
My repair steps on OSX (please adjust for Windows):
Upgrade Android Studio to 0.8.7
Preferences | Updates | Switch "Beta Channel" to "Canary Channel", then do a Check Now.
You might be able to skip this.
Checked the Gradle wrapper (currently 1.12.2; don’t try to use 2.0 at this time).
Assuming you don’t need a particular version, use the latest supported distribution
$ vi ~/project/gradle-wrapper.properties ... distributionUrl=http\://services.gradle.org/distributions/gradle-1.12-all.zip
This can be set in Android Studio at Preferences | Gradle (but 0.8.7 was giving me ‘invalid location’ errors).
The 'wrapper' is just a copy of Gradle for each Android Studio project. It allows you to have Gradle 2 in your OS, and different versions in your projects. The Android Developer docs explain that here.
Then adjust your build.gradle files for the plugin. The Gradle plugin version must be compatible with the distribution/wrapper version, for the whole project. As the Tools documentation (tools.android.com/tech-docs/new-build-system/user-guide#TOC-Requirements) is slightly out of date, you can set the plugin version too low (like 0.8.0) and Android Studio will throw an error with the acceptable range for the wrapper.
Example, in build.gradle, you have this plugin:
dependencies {
classpath "com.android.tools.build:gradle:0.12.+"
}
You can try switching it to the exact version, like this:
dependencies {
classpath "com.android.tools.build:gradle:0.12.2"
}
and (after recording what version you’re changing from in each case) verifying that every build.gradle file in your project pulls in the same plugin version. Keeping the “+” should work (for 0.12.0, 0.12.1, 0.12.2, etc), but my build succeeded when I updated Google’s Volley library (originally gradle:0.8.+) and my main project (originally 0.12.+) to the fixed version: gradle:0.12.2.
Other checks
Ensure you don’t have two Android Application modules in the same Project
This may interact with the final solution (different Gradle versions, above), and cause
UNEXPECTED TOP-LEVEL EXCEPTION: com.android.dex.DexException: Multiple dex files define (various classes)
To check, Build | Make Project should not pop up a window asking what application you want to make.
Invalidate your caches
File | Invalidate Caches / Restart (stackoverflow.com/a/19223269/513413)
If step 2 doesn't work, delete ~/.gradle/ (www.wuttech.com/index.php/tag/groovy-lang-closure/)
Quit Android Studio
$ rm -rf ~/.gradle/
Start Android Studio, then sync:
Tools | Android | Sync Project with Gradle Files
Repeat this entire sequence (quit...sync) a few times before giving up.
Clean the project
Build | Clean Project
Project structure mismatch; see https://stackoverflow.com/a/64962359/8740349 for details.
If You See This...
In my recent builds, I kept seeing horrible fails (pages of exceptions) but within seconds the messages would clear, build succeeded and the app deployed. Since I could never explain it and the app worked, I never noticed that I had two Gradle plugins in my project. So I think the Gradle plugins fought each other; one crashed, the other lost its state and reported the error.
If you have time, the 1-hour video "A Gentle Introduction to Gradle" (www.youtube.com/watch?v=OFUEb7pLLXw) really helped me approach the Gradle build files, tasks, build decisions, etc.
Disclaimer
I'm learning this entire stack, on a foreign OS, after working a different career...all at the same time and under pressure. In the last few months I have hit every wall I think Android has; I've been here quite often and this is my first post. I thought this was a hard fix, so I sincerely apologize if the quality of my answer reflects the difficulty I had in getting to it.
Download system image(of targeted android level of your project) from sdk manager for the project you have imported.
This error comes when you do not have target sdk of your android project installed in sdk folder
for eg. Your imported project's target sdk level may be android-19 and on sdk folder->system-images you may have android-21 installed. so you have to download android-19 system image and other files from sdk manager or you can copy paste it if you have the system image.
Remove:
<facet type="android" name="Android">
<configuration />
</facet>
in your iml file. That works for me.
https://plus.google.com/+AlexRuiz/posts/49hP3V9GSGe
This happened to me recently when I close one Android Studio project and imported another Eclipse project. It seemed to be some bug in Android Studio where it preserves some gradle settings from previously open project and then get confused in the new project.
The solution was extremely simple: Close the project and shut down Android Studio completely, before re-opening it and then import/open the new project. Everything goes smoothly from then on.
Apparently this error has multiple causes. Here's what fixed it for me.
I was running the build command like this:
./gradlew :testapp: build
Running it without the space fixed the issue:
./gradlew :testapp:build
I got this error when switching from one Git branch to another, and then trying to run "Clean Project". I used ack to search for the Task name, and found it in a .iml file.
My solution was to regenerate the project's .iml file by clicking (in the main menu) Tools > Android > Sync Project with Gradle Files. (Thanks to this answer.)
In my case, setting the 'Gradle version' same as the 'Android Plugin version' under File->Project Structure->Project fixed the issue for me.
Simple fix for me was
Build > Clean project
Restart Android Studio
Yet another solution to the same problem:
This happened to me every time I imported an eclipse project into studio using the wizard (studio version 1.3.2).
What I found, quite by chance, was that quitting out of Android studio and then restarting studio again made the problem go away.
Frustrating, but hope this helps someone...
Sometimes, if you have opened two windows of Android Studio, and when you try to compile, this issue might happen. For me, when I was compiling a backed Google Cloud Endpoint module which was not embedded in a project, rather shared among different Android Studio projects, and when there is more than once instance open, this error use to spring up for me. But as soon as you close other windows, everything will be fine. Sometimes, you might have to restart Android Studio altogether.
I got this problem because it could not find the Android SDK path. I was missing a local.properties file with it or an ANDROID_HOME environment variable with it.
Make sure you have the latest values in your gradle files. As of this writing:
buildToolsVersion "21.1.2"
dependencies {
classpath 'com.android.tools.build:gradle:1.1.0'
}
Open Command Prompt
then go your project folder thru Command prompt
Type gradlew build and run
Apparently this issue caused by Android Studio on the various situation but the reason is build error When importing an existing project into android studio. In my case, I've imported my exist project where I was supposed to install few build tools then finally build configuration was done with error. In this case, just do the following things
Close the current project
File>New>Import Project (Don't use the open recent project)
Note:
I'm sure this kind of error is not on source code when this happened on Import project.
Problem
I specifically got the "[module_name]:prepareDebugUnitTestDependencies" task not found error, every time I ran gradle build. This happened to me after updating my Android Studio to 3.0.0.
Investigation
I had previously added command-line options to the gradle-based compiler, which you can find under: File -> Settings -> Build, Execution, Deployment -> Compiler -> Command-line Options. Specifically, I had excluded a number of tasks, including the aforementioned task. While that worked fine on the previous stable version (2.3 at that time), it seems like this was the reason behind the build failure.
Solution
This is one of many possible solutions.
Make sure you have the correct command-line options specified in the settings under: File -> Settings -> Build, Execution, Deployment -> Compiler -> Command-line Options, and that none of them is causing this problem.
In my case, I removed the exclusion of this task (and other tasks that seemed related), left the unrelated tasks excluded, and it worked!
I had the same problem and the "Tasks" tab doesn't appear to me on the Gradle settings, neither doing the commands gradlew signinReport or something.
I fix it doing the following steps:
1.- Add android: exported = "true" in my main activity of the AndroidManifest (because that Activity has an intent-filter)
2.- Update in Build.gradle (app) the compileSdkVersion to 31
3.- Update in the same place the targetSdkVersion also to 31.
4.- Click on "Sync now".
And that works for me.
Farewell!
For this you may simply just goto: SETTINGS > EXPERIMENTAL > Then uncheck the option:
"Do not build Gradle Task List during Gradle sync", Click on "Apply" > "Ok" and then click on the "Sync Project with Gradle files" option from the right side of the menu bar.
Your issue should be resolved.
Set the path of the root folder and after run the below command
ex : cd C:\Users\maha\Documents\gradle\gs-gradle-master\initial
This is what I did
Remove .idea folder
$ mv .idea .idea.bak
Import the project again
I remove/Rename .gradle folder in c:\users\Myuser\.gradle and restart Android Studio and worked for me
In my case, I meet this problem that compile options in Android Studio is "stacktrace." Modify stacktrace to --stacktrace, the problem solved.
I have solved this problem You just need to Create file in Android Folder
Go android folder
Create file local.properties
then just add this code in local.properties file:-
If you are using MacBook then sdk.dir=/Users/USERNAME/Library/android/sdk
if you are using Windows then sdk.dir=C:\Users\USERNAME\AppData\Local\Android\sdk
if you are using Linux then sdk.dir = /home/USERNAME/Android/sdk
if you want to know what is your system USERNAME then just use command for Mac whoami
and then just rerun command react-native run-android
Thanks :)
Am on Mac so answer is as per like that.
Go to Android Studio(From Menu Bar) -> Preferences -> Build, Execution, Deployment -> Compiler . Then look for Command-Line Options , there make sure nothing typed in its Text Field. That should be empty. Then rebulid project and thats it.
After I updated Android Studio to version 0.2.7, I got the following error:
org.gradle.tooling.GradleConnectionException: Could not execute build
using Gradle distribution
'http://services.gradle.org/distributions/gradle-1.6-bin.zip'.: Could
not execute build using Gradle distribution
'http://services.gradle.org/distributions/gradle-1.6-bin.zip'.
This is my build.gradle:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.5.+'
}
}
apply plugin: 'android'
dependencies {
compile files('libs/android-support-v4.jar')
}
android {
compileSdkVersion 17
buildToolsVersion "17.0.0"
defaultConfig {
minSdkVersion 10
targetSdkVersion 17
}
}
Does anyone know this error?
I had the same issue, can't say I know what caused it, but I just closed Android Studio, renamed the c:\users\MY USERNAME\.gradle directory to old-.gradle and then re-launched Android Studio.
Android studio then re-created the directory and automatically downloaded the gradle zip file and set it all up.
Seems to all be fine but to be honest I don't know what this directory is nor what the root cause of the problem was either, so proceed with caution and keep the old .gradle folder around for a bit until you're happy all is working fine.
For me the following two steps fixed the issue:
Make sure the Gradle build was successful
Android Studio - File - Invalidate Caches / Restart...
I suddenly had this issue in the morning after it working the night before. I tried all solutions here and failed.
I also tried installing another version of Gradle 1.8 and setting the gradle_home.
Tried restarting studio.
Eventually the tried and trusted method of restarting Windows worked for me.
All in all a frustrating waste of time.
I updated to 0.3.0 and had the same issue. I had to end up changing my Gradle version to classpath 'com.android.tools.build:gradle:0.6.1+' and in build.gradle and also changing the distributionUrl to distributionUrl=http\://services.gradle.org/distributions/gradle-1.8-bin.zip in the gradle-wrapper.properties file. Then I did a local import of the Gradle file. That worked for me.
I had this issue as well and jaywhy13 answer was good but not enough.
I had to change a setting: Settings -> Gradle -> MyProject
There you need to check the "auto import" and select "use customizable gradle wrapper". After that it should refresh gradle and you can build again. If not try a reboot of Android Studio.
First of all, JDK environment variable settings :
e.g) JAVA_HOME -> C:\develop\java\jdk\jdk1.8.0_25
path -> %JAVA_HOME%\bin;
eclipse
Window -> preferences -> Gradle -> Arguments -> Worksapce JRE check -> jdk(jdk1.8.0_25) choice
again Run -> gradle build :)
1- delete .gradle folder in the root directory of the app
2- invalidate cache and restart
As per answer by WarrenFaith, go to:
Settings -> Gradle -> Project-level settings
Change to Use customizable gradle wrapper.
Click OK and watch it build. If you still get an error at that stage, go back to:
Settings -> Gradle -> Project-level settings
Change it back to Use default gradle wrapper (recommended)
Click OK. That fixed it for me.
I had the same issue and i solved it by deleteing gradle-wrapper.jar and gradle-wrapper.properties file of Gradle wrapper then clean rebuild work for me.
I entered:
[C:\Users\user\].gradle\caches\1.8\scripts directory and deleted its content.
I didn't had to restart anything, just removed scripts content any rerun it.
For me, when using IntelliJ IDEA, this error arose because I had the Java SDK, rather than an Android SDK, set at the Project level.
My fix:
IntelliJ > File > Project Structure ...
Project > Project SDK > [Select] 'Android API 19 Platform (java version "1.7.0_40")'
I'm on:
IntelliJ IDEA: 13.1.3
Gradle: 1.10
Android Plugin for Gradle: 0.9.+
I had the same problem on Ubuntu with Eclipse 4.3 (Kepler) and the problem was that I created the project with a minus-sign in it.
I recreated the project with no specialchars and it all worked fine
I had the same Gradle build problems in Eclipse and by doing the following steps, the problems were solved:
set up project to use correct java version of java
project properties-> java build path -> jre system (edit the current one, and add the correct java jdk or jre there)
window->Preferences ->Gradle->Arguments-> Workspace JRE (set to the correct one)
Hope this will help those who have the same problems.
This happened to me after a java update, few things to check if you are sure your path has been set before:
if the path doesn't match the latest java install folder, change it (if your in eclipse check the eclipse.ini too to make sure your using your systems default vm (ie no VM tag) )
go to the java directory, there should be a 'jdk' and a 'jre' in the path, for example:
C:\Program Files (x86)\Java\jdk1.8.0_72\jre
if not you probably installed the JRE only not the JDK that
finally if the lib folder of the jdk (not jre) doesnt contain tools.jar then you have a problem with the install
I had a similar problem after doing brew install gradle. Perhaps it was because it was an older version. So I uninstalled and instead followed the gradle website's install instructions and then when I did gradle eclipse I no longer had the could not execute build using gradle distribution error.
This problem occurred to me when I edited the configurations in Android Studio to use the Desktop. However, using the default(android) seems to work well without any issues.
To correct this mistake very easily,
If you read logs. The problem occurs because of the sudden shutdown of the IDEA. And the log files do not correctly write data. Just delete the file on the path
C:/Users/{UserName}/.Gradle/demon/{gradleVersion}/registry.bin.lock.
I'm using Android Studio 0.2.5 with gradle 1.6. I'm collaborating with a developer of a library I'm using, so when he pushes updates to some-library:2.1.5-SNAPSHOT I'd like to get it immediately. I can disable caching for changing modules in gradle by setting the resolution strategy as follows:
configurations.all {
resolutionStrategy.cacheChangingModulesFor 0, 'seconds'
}
This works fine for command line builds, but it looks like Android Studio is still using the old version of some-library-2.1.5-SNAPSHOT. The only workaround I've been able to get to work is to delete myproject.iml and the .idea directory and re-import into Android Studio, which is very time consuming and seems unnecessary.
Another workaround is to delete the ~/.gradle/caches directory and then sync the project in Android Studio.
This is not ideal since all your dependencies need to be re-downloaded, but its a little less intrusive that re-importing the project into AS as noted by #Joe.
Terminal: rm -rf ~/.gradle/caches
AS: Tools > Android > Sync Project with Gradle Files (or hit the "Sync Project with Gradle Files" menu button)
EDIT
Did some more researching and found this little gem.
Just configure your dependency as such...
compile ('groupId:artifactId:X.X.X-SNAPSHOT'){
changing=true
}
Then just run gradle clean assemble on the project that has the SNAPSHOT dependency.
I did test to see if a newly added constant became available, and sure enough it worked.
I'm trying to add a .jar library to my project into the /libs folder. Here is my grade.build:
buildscript {
repositories {
mavenCentral()
}
dependencies {
classpath 'com.android.tools.build:gradle:0.4'
}
}
apply plugin: 'android'
dependencies {
compile files('libs/android-support-v4.jar', 'libs/java-api-wrapper-1.2.0-all.jar')
}
android {
compileSdkVersion 17
buildToolsVersion "17.0.0"
defaultConfig {
minSdkVersion 15
targetSdkVersion 16
}
}
After I add that, I build my project and there are no errors. But when I try to use the class in my code private ApiWrapper wrapper, I get an error:
Gradle: error: cannot find symbol class ApiWrapper
I can't quite find where the error is. Is my grade.build not ok, or am I supposed to build it some other way?
Using the command line, in the root of your project, run :
./gradlew clean && ./gradlew build
Then recompile your project in studio and you should see your new lib.
Set minifyEnabled to false for all your library projects in build.gradle.
See accepted answer by Scott Barta in this thread.
See accepted answer by Scott Barta in this thread
Goto File ⇒ Invalidate Caches & Restart
Solved my problem
As first option, i think will be enough Syncronizing the Project with Gradle Files.
Another option, from the command line, run the batch file gradlew.bat located inside your project folder:
./gradlew clean && ./gradlew build
I had a similar situation where Android Studio couldn't find a library that definitely existed. Even though I was able to compile my project in Android Studio, run it from Android Studio in the emulator or on a physical device, and build it from the command line using gradlew, the Android Studio IDE complained Cannot resolve symbol 'ConstraintLayout'. I believe I had imported the library correctly because I followed Google's instructions: https://developer.android.com/training/constraint-layout/#add-constraintlayout-to-your-project.
Anyway, I ended up solving the problem as follows:
Close Android Studio
Delete the .idea folder in the project's directory
Open Android Studio
Re-import the project so Android Studio can regenerate the .idea folder
This in-fact solved the problem. I believe Android Studio somehow corrupted the .idea folder when I had done "Android Studio" > "Check for Updates" earlier in the day.
Go to the Android studio File and press Invalidate Caches/Restart. This worked for me to find the library