I know there are a multitude of questions across various forums that touch on this issue but nothing has helped thus far.
I use Eclipse Photon for my IDE.
I installed the Android SDK via Android Studio.
I recently moved to a new machine and since then I get these errors when trying to build the project. Actually, the first image occurs when I first open Eclipse. The second image is what I see when building (I cleaned beforehand).
Many solutions suggest reinstalling platform tools/build tools/the entire SDK etc.
So, I did this:
1) Closed down Eclipse
2) Opened Android Studio and went to SDK Manager
3) Unchecked and uninstalled all the options highlighted in the images below.
4) Once uninstalled I restart Android Studio and reinstalled all of them.
5) The errors noted at the start of this post persist.
Any ideas what I can try next? It seems every machine move/upgrade causes build issues. It's the main reason I dislike coding for phones, it's not the coding, it's the dev environments!
Related
In android studio, I had a project that was working in first place but then I created multiple copy of it in other paths to add changes to these copies instead of the original.
Afterwards, I noticed that the emulator shows up but doesn't launch the app I am trying to run. I followed a tutorial on YouTube that opens the setting app on the emulator and clears launcher data. then nothing changed.. I noticed that no matter how many changes I am adding to the file, nothing changes in the old app icon existing on the emulator.
Things got much worse later when I noticed that there is no modules or any other folders in the project structure except the SDK and when the older project versions were found to have same problem suddenly.
Even when I create a new project that is empty, same thing happens and the app crashes once it's installed.
Android app icon button before run appears in the project with a red cross over it.
Both the emulator and the mobile device don't get the latest version of the app I am trying to install.
I tried to make project, build, run, clean project, sync with gradle file, invalidate cache & restart. However, none of these solutions seem to work.
No idea what is going on.. things seem to be messed up and all online sources seem to be less useless to me.
Note: I am using Android studio V 1.1.0
so, I found that the best solution to this problem is to uninstall the current version of Android studio and SDK folder and reinstall it from scratch.. hope that helps
Recently I experienced that Android Studio is hanging a lot. Right in the middle of typing in any editor it will hang and block me from doing anything else for a couple of seconds. Restarting or killing adb wouldn't help.
After a while I realized that this happens if the documentation is being loaded and displayed. This happens mostly for Android documentation, which is quite verbose and also seems to contain images and formatting.
I already tried switching off the Auto-update from source option, but that doesn't change anything.
Any ideas what could cause Android Studio to block while it's loading or displaying (or doing whatever with) the documentation?
I'm using Android Studio 2.1.1, the latest build with the security fix.
you can check this solution: https://stackoverflow.com/a/26149069/2133585
Here's what fixed it for me:
Make sure you have the Documentation package downloaded in SDK Manager.
Exit Studio if it's running.
Delete the file named "jdk.table.xml" located in ~/.AndroidStudioX.Y/config/options/ (remember to take a backup
first!).
Relaunch Android Studio. should work correctly now and it should regenerate the file automatically.
Note:
This worked for me on Ubuntu 14.04 & Android Studio 0.8.11 (EDIT: Several users are reporting this solution also works for
newer versions of Android Studio).
If it still doesn't work, try deleting and re-downloading the Documentation package from inside Android SDK Manager then try the
above steps.
If you're running Windows, the file is located at "%UserProfile%.AndroidStudio\config\options", and if you're running
OS X, it's located at "~/Library/Preferences/AndroidStudio/options"
(credits to #Gero and #Alex Lipov).
Fix still works for AS 2.2.3 and MacOS 10.12.2 Sierra
I have a problem with creating Android Application project in Eclipse on my Mac. When I start Android Application Project Wizard after clicking "finish" in the last step, this window appears:
I've been trying to solve this for hours, but none of the solutions I've found on the internet worked for me (including this). I didn't try to reinstall eclipse itself, but to I don't want to do this. What's the solution to my problem.
UPDATE:
I removed Eclipse and sdk from my computer and downloaded the whole ADT Bundle from here and switched workspace but actually I am still getting the same Errors.
What I found up on the internet was that you could have upgraded your java. So this occurred. The solution to this problem for Mac is to edit the Eclipse.ini file to use java 1.6 .The code Below will work :
-vm/System/Library/Frameworks/JavaVM.framework/Versions/1.6.0/Commands/java
Start with a clean slate. Unistall Eclipse and redownload - Eclipse is a very big program and can be very buggy at times for no reason. While it is not the quickest solution, ensuring that Eclipse was properly downloaded and installed will provide a good foundation for the future development of you Android applications. Did you install Eclipse just for Android, or did you have a pre-existing copy and want to install the Android SDK?
I'm trying to learn to develop Android applications and I'm using eclipse, I Installed the android SDK and eclipse and I was able to make a couple of basic examples but suddenly I updated the SDK with the lates reviews and eclipse is not generating the R.java anymore, I read a lot of forums with the same problem but all responses are releated with errors one the code and errors on the xml's but I just create a new project with all defaults and not touching any line or any configuration and I don't have the R.java so I can't run the project I've clean the project 100 times and I reinstalled everything a couple of times but nothing works, so totally frustrate, I change from my Windows 8 PC to my MAC and I found exactly the same problem. Does anyone have a suggestion?
Thanks
I am a new Android developer (4 weeks into porting my iPhone app to Android). I have 8 projects (the app, and 6 small UI experiments, and a vanilla Hello World project that I just created with Eclipse). All fail to compile, and the issue is that every reference to the generated file R is flagged as "R cannot be resolved to a variable".
Up until yesterday afternoon -- every project compiled and ran (albeit very slowly) in the Android emulator. I've changed something, and since yesterday, all projects fail to compile, all in the exact same manner "R cannot be resolved to a variable". I every case, the generated files are missing. I believe they disappeared as I tried to clean and rebuild each project in the course of debugging this problem.
Two things that I know changed when this problem started, but that I can't say caused the problem, were: 1) shifting to debugging on a real Android device (a Samsung Galaxy Tab 2, which worked like a champ after struggling with the slow emulators), and 2) allowing Android (and perhaps Eclipse) to update themselves from the web.
I've spent many hours trying other user's suggestions and none have helped. Most suggestions refer to file naming issues, xml syntax errors, but I haven't changed these files and filenames since compilation was working. I have tried:
cleaning and rebuilding the projects
checking for subsequent updates to the Android SDK (and there were 2 subsequent ones)
Eclipse->File->Android Tools->Fix Project Properties
making small source changes to force rebuilding
rebooting Eclipse, as well as the Mac host, adb, the emulator, the Android SDK Manager
deleting a project, restarting Eclipse, and adding the project back in (bad idea - this fails with an error "Failed to load properties file for project 'ListViewFragmentTest'"
creating a brand new Android App project, which has worked many times before, but now fails
There's something going systematically wrong, and while I won't claim all these projects are bug-free, they did run up until 6pm yesterday, and then all stopped compiling thereafter.
I wonder if anyone has other suggestions, before I embarking with a complete reinstall of the development environment?
My environment is:
Macbook Pro (OS X 10.7.5, 8GB RAM, 2.53GHx Core i5)
Eclipse (Indigo Service Release 2, Build: 20120216-1857) (too old?)
Android SDK Manager Rev 22
Android SDK Tools (22), Platform Tools (17), Build Tools (17)
API's 11-17, all up-to-date
Seems like lots of people experience trouble with missing generated files (R), and I have had trouble when I've had layout XML errors as well, but that doesn't seem to be causing this problem. Thanks in advance for your help!
I am not sure but you are facing issue of R.java file is not getting generated after updated with ADT rev 22.
If this is the case then here is the solution:
Hope you know Android studio has gradle building tool. Same as in eclipse they have given new component in the Tools folder called Android SDK Build-tools that needs to be installed. Open the Android SDK Manager, select the newly added build tools, install it, restart the SDK Manager after the update.
Check in the Java build path library, whether "src" check box is checked or not.
If you are using any additional Libraries then make sure libs/android-support-v4.jar is same for project as well as the Libraries.
Thanks everyone. None of these suggestions resolved my problem. And while I'm curious as to why it happened, I was more impatient with not making any progress. I've reloaded Eclipse and the Android tools (this time with the bundled version from developer.android.com), and everything is working smoothly again.