Develop Reference

Android Studio freezes on indexing

my project was working well but suddenly when I ran it on my phone, Android Studio freezes and I should stop it from task manager.
before this happens I installed "Geny motion" & "Virtual Box", but when the error occurred I uninstalled them. but the problem insisted.
Solutions I've tried
I uninstalled it and installed it again
I unplugged and plugged in my device
I disabled android indexing from setting
None of the above solutions worked.

I had today this exact problem. None of the above helped me until I found simple solution here
Just run File -> Invalidate Cache and Restart
That simple and it works!!!

Delete all Android Studio data - .gradle .android .androidstudio folders from your home folder. And all project build folders gradle and iml files.

This worked for me.
1.Close the project
2.Remove the project
3.Close Android Studio
4.Open it again
5.Open the project
Enjoy Coding!

I checked my java file and I saw somehow all the code in one of my java files was replaced with "NULL NULL NULL NULL....."
I deleted the file and the application runs without a problem.

Android Studio (3.1.3) froze on me while editing a source file. I waited and finally killed the process in Task Manager (Windows). Twice I tried to start up again and both times it got stuck with the "indexing..." message in the lower right. Both times I ended the process in Task Manager.
I looked in the source folder of the project I was working on. The source file I had been editing when it froze was "Receipt.java". There was another file in the src folder "Receipt.java__jb_tmp__". I deleted that file and Android Studio started up fine. It looks like I lost some edits, though.
When I did start up, it detected there had been some error and offered to submit a report.

If the project is large & has a lot of modules, you might need to increase the Allocated Heap Size for Android Studio.
Go to Edit Custom VM Options from Help menu and increase the value for -Xms and -Xmx
This is what I'm using
-Xms2048m
-Xmx8192m
-XX:MaxPermSize=2048m
-XX:ReservedCodeCacheSize=1024m
-XX:+UseCompressedOops

In my case color was declared as invalid, Android Studio ignored that and during building it froze. I had to remove the file, let it index, paste it back and fix the color string (it gave me error when I entered the pasted file)

just rename project folder then open IDE, it will show
now rename back to origin folder name, click open project
it work on my case

I have older project with sdk version 22, when I open it in android studio 3.1.2 on macOS. It keep indexing forever, everything was installed and configured properly but indexing loop never stopped.
Following worked for me
File > Invalidate caches/restart… > Invalidate caches/restart

Go to the File menu and click the option Invalidate Caches / Restart This will solve the problem ! Enjoy ;)

Unable to clean or rebuild project in Android Studio 2

I have a problem with my Android studio 2. That's whenever I want to clean or rebuild my android project, I always get this message
Error:Execution failed for task ':app:clean'.
Unable to delete directory: C:\Users\MyPC\Desktop\SharePlace\app\build\intermediates
and can not fix it. what I only can do is go to File explorer and delete it.
then come back android studio and rebuild again. Sometime, that way also does not work.
I need some help to fix that Android studio. Please.
Thank inadvance!

Solution 1 :
you are using Android Studio 2.0 Beta, this issue might appear (more likely if you are working on NTFS filesystem) and it seems like the "Instant Run" is the culprit. Search for "Instant Run" in settings and uncheck the box.
I have filed an issue on the bug tracker.
Solution 2 :
You need to go to the source file directly. Close the studio and go to the path the issue is located at and delete the folder there.

I got a lot of faults like this.
Try to refresh all gradle projects: in Android Studio click on the "Gradle" tab on the right side of the window. When the gradle menu is shown, click on two blue mixed arrows icon. Then wait a moment until gradle completes refreshing and try cleaning or rebuilding again.

For me it was fixed by running Android Studio as administrator.

Manually deleted folder( build\generated and build\intermediates) after closing android studio works for me.

Found the solution. For windows, goto Task Manager and find your Android Studio. Expand it and end task for OpenJDK Platform Binary as depicted below
screenshot.
Then re-run your app in Android Studio again. It should work, and you don't have to restart your Android Studio all the time. More productivity~

How to fix android studio gradle errors from unexpected shutdown

I am developing android applications in android studio 2.1. My system was shut down unexpectedly due to the power failure.Then after power comes i restarted my system open the android studio all my API components are showing error but my gradle file showing that it was successfully build what was the problem here i am getting don't know This screen shot will explain you more
It was showing gradle successfully build but still error remains same can anyone help me

Try to clean the project using the gradle task clean then invalidate the cache of android studio and restart (File/invalidate cache and restart).
after that synchronise your project with grade and build it again. I think it would solve your issue.
Let me know if it works.

First, Close your IDE and Follow these two simple steps to solve this problem.
Delete caches folder of the path
C:\Users\user\.AndroidStudio4.0\system\caches.
Delete specific project's caches folder too
E:\AndroidProjects\SampleApp\.idea\caches

Android Studio Out of Memory Error [duplicate]

This morning I have been experiencing an issue with Android Studio, whenever I open it I am getting the following error.
I have tried removing Android Studio and getting a clean install. Removing all the preference folders. Removing and re-downloading my project's repository. Creating a new project. All of these still end with this error showing up. No mater how high I increase the memory it is still getting this issue.
I have checked the Activity Monitor and it is actually only using 524mb of memory. Does anyone have any suggestions?
The next thing I'm going to try is using an older version of Android studios. Apart from that I'm not sure what else to do beside a clean install of the OS and hope for the best.
UPDATE:
Couldn't work out a way of fixing this, and had to perform a clean reinstall of OSX.

I was fighting with this problem today for a few hours and ended up trying File -> Invalidate Caches / Restart... and chose the Invalidate/Restart option. Seems to have fixed the Out of Memory error.
Don't know if that will work for you at a later time, but hopefully it helps.

Go to /Applications and do right click on Android Studio > show package contents
Then go to /Contents/bin/studio.vmoptions and change it like this:
-Xms128m
-Xmx800m
-XX:MaxPermSize=350m
-XX:ReservedCodeCacheSize=96m
-XX:+UseCompressedOops

There are couple of ways to handle out of memory in Android Studio:
Clean the Project And Rebuild
Invalidate Caches/Restart -> Sync Project with Gradle files
Restart the PC
Close Android Studio -> Delete .idea folder -> Start the Android
Studio and rebuild.
Still facing the issue, Need proper investigation.

This may be a simple error in your code that Android Studio does not know how to resolve.
Example problem: In my case, within my activity's onCreate function, I wrote binding.root.also{ } and deleted the opening curly bracket of the also scope function. This caused Android Studio to run out of memory and freeze.
Solution: I deleted the also function within Notepad and there were no problems afterwards.

This happened to me when I entered /* to begin commenting out a few lines. And it happened before I could add the */ to close the comment section. Therefore, the entire second half of the file (and beyond) was being commented out. I could not go back to add the needed */ to close the comment, because the "Out of Memory" window kept popping back up before I could do so.
So I closed Android Studio,
opened the same .java file in NotePad,
added the needed * / a few lines below the /*,
saved the file with NotePad,
then reopened it again in Android Studio.
The Out of Memory problem was gone for good.

I also got the same problem in my case, I tried to dump memory and it is reached to 200mb and while opening the studio it is showing the continuous process, because of '.hprof' the file is loading. Finally, I removed the '.hprof' and able to run my project. The .'hprof' file removed from the directory ''

I had the same error recently (Android studio 3) even though I had 16gb Ram + I7700K CPU.
I noticed that it started to appear after I disabled the Virtual Memory Ram because I needed some extra space in my SSD. so I just reactivated it and the problem was solved!

android studio rendering timeout

I have a problem with Android Studio. Since this morning I can't edit my layouts through the Design interface. It's stuck on "Initializing Rendering Library" and the IDE freezes. All my layouts were working well yesterday and I haven't changed anything since then.
I have tried to invalidate the cache and restart but without any result.

Try that steps :
1.Update Android SDK and Android Developer Tools.
2.If that will not help, reinstall Android Studio using the newest available version (remember to do a backup of your data and projects).
3.If that will not help, install other IDE for example Eclipse and import all your projects to it.
Good luck !

For me helped such steps:
Remove .gradle folder from the project folder, all *.iml files and
.idea
Remove C:\Users\username.AndroidStudioPreview1.2
Run Android Studio without importing settings. This will allow to see a dialog where you can open your project from scratch. If you
import settings then Android Studio will open previously opened
*.xml files which caused the problem (hanging "Initializing Rendering Library") and the situation will happen again
Run Gradle cleanup
Sync project
Invalidate cache and Restart
Build the project from command line. If use Build from AndroidStudio I got hanging "scanning files to index..."

I reinstalled my android studio without success,
Then, I downloaded the sdk again, and change my old sdk-path to the new one
After I restarted my studio, it works.
The most mysterious thing is, I rechange my sdk-path back to my older one, then every thing is ok,I don't know why,but it solved the problem