sincerely, I tried almost EVERYTHING that is on the internet.Even not directly related to this specific problem.This problem is happening in Android Studio even before I Installed the latest version.I was about a month without working in Android Studio.The only thing related to Gradle that I messed with, was adding the LibGDX to Eclipse for a University work.I may be talking nonsense, but a think the problem appeared after that, because I had to install the SDK for Eclipse and this may be caused the issue.
When I open Android, I can't build my apk.So I made several changes to the app and noticed that nothing changed.So I Looked to the Gradle build and saw:
Error:Failed to complete Gradle execution. Cause: unknown.
in Gradle Sync I got:
Gradle 'BluetoothConnector' project refresh failed
So I tried:PrintScreen of the Android Studio error
◘Updating Android Studio
◘Turning off Oflline mode.
◘Reinstalling(I did it several times with false hopes) every thing
related to Java(JDK,Java,JRE,Eclipse,Android Studio).
◘Checked the project Structure, add Dependecies entries.
◘Invalidade Cache/Restart
◘Export/Reimport.
So as you fellow programmers can see, I'm kind of struggling hard with this problem.Before I ask a question, a very long battle has already been going on for quite a while.And I simply don't know what else to do.
I tried starting a new application, and the same refresh error appears. All my other apps as well.
Unfortunely the only solution was a clean formating of the PC.I have no Idea what caused this, but it was the only thing left to do.And it worked.If Anyone come across this issue, that's really what do to.
Try this, it worked for me.
1. Change compile to implementation or api (As compile is now deprecated)
2. Clean the project
Check following links for more details:
Gradle Project refresh failed error
Use the new dependency configurations
I am trying to compile and run the project
https://github.com/jitsi/jitsi-android on Eclipse by Importing.
I have imported the project successfully,Added External Jar files and Fix some of compilation errors.
When I try to run app, It is giving
Conversion to Dalvik format failed with error 1 Error on the console.So that I Clean the project, checked the all the jar files from Order and Export tab and build it again.
but it doesn't work for me.
Finally, I unchecked the all the libraries from Order and Export tab,build and run it again.
But still its giving me same error and my application is getting crashed every time i run it.
Any help will be appreciated , i really want to run this application.
here is my libs folder screenshot:-
I've had the same problem once.
Here is what I found out when I was trying to solve my issue:
The error is caused when there are two Classes/Packages with the same name (For example when LibaryX has Class org.a.b.c.Sample and LibaryY has class org.a.b.c.Sample aswell)
Different approaches which worked for some people (So if you have the error yourself, make sure to test following things out):
A) Two Libaries have the exactly same package/class-> Delete the class in one of the Libaries
B) One Jar is detected twice because it's for example in the project source folder and in the Java Build Path Libaries aswell
C) Updating Proguard often fixes it aswell (Put the new Proguard jars in [Android SDK folder]\tools\proguard\lib)
D) Cleaning the Project also helped many people (you already did that, so that won't be your solution)
When I had this issue myself it was caused because I did not follow the instructions of one of the libaries that I used. After following the libary instructions step by step, everything worked fine again.
Greetings
Felix
I'm getting really frustrated over this. Every imte i try to export my project I get the error: Conversion to Dalvik format failed with error 1
I tried a lot of things. I got the newest eclipse. Changed my proguard file.
This error only happened when I added the facebook 3.5.2 SDK to my project. We had in our library the same android-support-v4.jar. I deleted the one in my app and kept the one in the facebook SDK but I still het that error. Can anybody help me it's really frustrating ...
Thanks in advance..
We too faced this error and we found a smart solution for this,
Steps to resolve this error:
Uncheck the "Build Automatically" option in Project menu in eclipse.
Do project clean
And then, right click on the project name over
here you will find "Build Project" option
Click the "Build
Project" and now you can start export your project.
I hope it should work to you too.Please try and let me know...
For NewRelic users:
If you have integrated the newrelic jar in your app, this happens when the newrelic version is outOf date.
Solution:
Update the newrelic jar to the latest version. On eclipse, its just right click on the project and update newrelic. Or you can download the new version directly.
Thanks amalBit
I had the same error, and tried everything above but nothing helped me.
My projects are attached to GIT source control system, and I realized that there are some GIT related task while exporting to Andorid application. Then I commited all changes to the GIT repository and error dissapear.
So, if you are using GIT for source control and nothing above help you, try to commit all changes to the GIT repository (and eventually push to upstream) and try export again.
I have updated to the latest Android SDK and set JAVA_HOME in .bash_profile using
export JAVA_HOME=$(/usr/libexec/java_home), and I'm getting the following error:
Error Gradle:
FAILURE: Could not determine which tasks to execute.
* What went wrong:
Task 'assembleDebug' not found in project ':CrystalBall'.
* Try:
Run gradle tasks to get a list of available tasks.
Error: Could not execute build using Gradle distribution
http://services.gradle.org/distributions/gradle-1.6-bin.zip
I've attached a screenshot:
What should I do?
The second error in your screenshot seems more important to me. You have to make sure, that the Android Studio is able to download and execute the gradle binary. If you are using a proxy you have to configure it in the Android Studio.
To check the gradle tasks, go to your project folder on the command line and type "gradlew tasks"
You can also configure a proxy for gradle. Just create a gradle.properties file in (your project folder) with these properties:
systemProp.http.proxyHost=www.example.org
systemProp.http.proxyPort=8080
systemProp.http.proxyUser=userid
systemProp.http.proxyPassword=password
systemProp.http.nonProxyHosts=*.nonproxy.com|localhost
I don't believe this is the issue the poster had, but for the benefit of others I'll add what I found as I was helping someone on Windows XP who was getting the same error.
It appears the issue in his case was that the path to the Android Studio project had spaces in it (since Windows XP uses the Documents and Settings directory). I had him generate a new project into a directory without spaces in it and it built and ran without problems. Might have actually been something else, but as usual it is best to avoid spaces in paths.
I'm on Eclipse for hours now and I didn't found a solution yet for my problem even after many searches on internet: I have no more R.java file on my projects.
On just created or on my old projects, i don't have R file anymore and I tried so many solutions (uninstall, re-install Eclipse, clean my project, check all my XMLs, fix problem with android tool and so on ...)
Please someone can tell me what to do in this case?
Hey If you just updated to ADT Rev 22 :
I had the problem too. There is a new component in the Tools folder called "Android SDK Build-tools" that needs to be installed.
Step 1
Open the Android SDK Manager
Step 2
Select the newly added Build Tools and install. (If problem stays then go to Project Properties => Java Build Path => Order and Export and check Android Private Libraries, then clean and build project.
It may be necessary to repeat the process, restart the SDK Manager after the update and make sure it looks like this (all tools installed):
More info:https://groups.google.com/forum/?fromgroups=#!topic/android-developers/rCaeT3qckoE%5B1-25-false%5D
Perhaps in Project Properties -> Java Build Path -> Libraries you don't have:
Android 4.2.2 (or other version)
Android Dependencies ?
If so, then right click project - > Android tools -> fix android properties
and see if this library showed up.
Thank you all for saving me! I've spent the whole afternoon on search this error.
Finally, my project works.
By the way, I also encountered one problem which i wanna share with you:
After upgrading, even if my project has not errors anymore. During runtime, it seems it couldn't find the classes from the jars placed in \libs.
Go into Project=>properties => Java build path= > Order and Export.
Please make sure all your jars are checked.
If this problem occurs suddenly in a well working project,
the first step is to find whether the problem occurs only in the current project or in all other projects.
if all other projects in the current workspace are working then 90% problem is with XML / mainfestfile/resourse file that you edited recently.
This error is not shown as red mark we have to find out what we have done recently in these files.
try this
sudo apt-get install lib32stdc++6 lib32z1 lib32z1-dev
it solved my problem
Close your eclipse and after refreshing system, try to open Eclipse again. I think you are using Emulator along with the eclipse. It may be because of the low Memory problem (RAM) of your system. I used to face the same problem when I use Emulator
whenever there is any mistakes in any of the xmls the R goes missing when a build or clean happens so check for any xml errors in your project unless you fix it you cant get back your R on clean or build. fix the xml files and perform a clean you will have the R generated. Also check in File->properties->Builders and see if everything is checked
I was using Eclipse Indigo and nothing I tried worked. I ended up downloading Juno SR2, reinstalling the ADT, and now everything works again.
Reinstall everything and it'll work.. i.e. go back to Google SDK or w.e. you're using and download it.
Update it to latest in SDK Manager.
Go into Eclipse-Project-Prefs-Java build path-order/export TICK EVERYTHING.
problem: No R file get generated.
guess: Try cleaning project if it is old one. Else create new project with no R get generated and with no compile errors but this: no project.apk
In this case you have to check your SDK for the built-tools. May not be installed after updating SDK.
Thus download them if not download here, then put them under directory: SDK/built-tools folder. Lastly, and most important, is to Run the SDK As Administrator. This guarantees refreshing SDK with all packages appearing in it.
Install the SDK-Built-Tools or any missing packages according to the above link and you're done.
hope this helps.
Try one thing, create a new Android Project and transfer all those files which are in the previous project. That worked for me.
In my case there is error due to "&" inside strings.xml file(but error not shown) for declaring string for a array type. Now the problem has been solved as I changed "&" to "and".
So, please make sure that you do not have such silly use of symbols, and clean the project.
I have had the same kind of problem, however Rechecking all XML files in the Resources folder was helpful in my case. I found syntax error in my XML files. Cleaning and building the project again can be helpful sometimes too.
I had the dreaded not more R.java.
Some of the things I've used in the past:
Clean / rebuild (the first thing we all try)
Restart eclipse (optionally reboot pc/mac)
Update both SDK/ADT eclipse plugin to latest version
Create new eclipse workspace and import project
Enable Verbose AAPT build output Eclipse menu>Preferences>Android>Build
Port project to Android Studio / Gradle (this helped my actually see the AAPT error i was getting Error Code:138)
Delete recent XML changes - Ultimately I found deleting recent menu.xml files I'd added and commenting out where they were referenced fixed the issue and I finally got R.java.
I got the error recently and had found no fault in any layout or value file. After a lot of tries I add another Activity and the R.java was build and the error disappeared. I don't know why this occur, but it takes me hours.