I'm trying to build an Android project in Eclipse, there are no syntax errors in the code (there's not much code at this point so I'm sure of this), I clean the project and build it and there are no errors, but as soon as I try to launch the app I get an error message and an error symbol on the project folder. This isn't the first time this has happened, I can't seem to launch any other projects either. I'm using Eclipse 3.7 (Indigo), JDK 6 with the compiler in Eclipse set to use v1.6, and Snow Leopard 10.6.8. I've tried fixing the project properties and still nothing works. Any help please?
Are there any known compatibility issues with Eclipse Indigo, JDK 6 and Snow Leopard 10.6.8?
I was concentrating on the LogCat and completely overlooked the Error/Problems view. It turns out that my Debug Certificate had expired so I just needed to delete ~/.android/debug.keystore and restart Eclipse and everything worked.
Often, misspelled assets or graphics can cause this and not show any error.
I'd make sure there are no misspelled or invalid characters in your filenames.
Hope that helps
Related
I just switched from Android Studio to intelliJ IDEA and I am trying to build my previous Android project. However, I am getting the following error upon on build.
The newly created daemon process has a different context than expected.
Java home is different.
Expecting: '/Applications/IntelliJ_IDEA_CE.app/Contents/jdk/Contents/Home' but was: '/Library/Java/JavaVirtualMachines/jdk1.8.0_111.jdk/Contents/Home'.
Please configure the JDK to match the expected one.
In my project structure's JDK setting, it is set to the IntelliJ's default JDK location but it seems like to be modified by some other configurations.
I have tried various solutions I could found online but still getting no where.
I have added the following option in my global gradle.properties:
org.gradle.java.home=/Applications/IntelliJ_IDEA_CE.app/Contents/jdk/Contents/Home
I have also tried deleting ./idea in my project and rerun the application but it is still showing the same error message.
I am not sure if anyone has another solution that worked for this problem. Thanks a lot!
PS. I am running IntelliJ on MAC.
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.
So I'm using Eclipse 4.2 to build my projects which imports native functions in Java.
Everything build fine with eclipse and yesterday everything worked fine.
Today my eclipse stopped to resolve jni.h headers and others android header and shows me errors.
My project builds correctly but eclipse forbids me running application with message saying that there are errors in my application.
I have all paths to symbols in project paths and symbols c,cpp.
And it was working without errors... My only solution right now is to build project, then restart eclipse and run application...
EDIT: oh... It's funny... Now eclipse doesn't start android emulator when i click run as...
EDIT2: even when I create new project...
EDIT3: Its funny... I had to add in avd device... I don't know how it is possible but for two days I've been using it without device in avd and it was working... (I haven't change api or anything like this and I haven't touch AVD Manager)
EDIT4: Strange things happenes in eclipse... I still don't know why eclipse has problems with includes...
It's a bug in ADT 20. Refer http://code.google.com/p/android/issues/detail?id=33788
Go with Alex' adwise until ADT 21 or a patch for ADT 20 is released.
[edit] BTW: you can always simply delete errors in the Problem list ;-)
You can go to Project|Properties|C/C++ General|Code Analysis then uncheck everything in there. That will provide for running your app until you figure out the proper fix.
You can do this by choosing Properties for the project
Properties -> C/C++ General -> Preprocessor Include..-> Entries -> Setting Entries -> CDT User Setting Entries
Add -> Include Directory -> File System Path, and enter the path of the includes like:
${NDK_ROOT}\platforms\android-5\arch-arm\usr\include
Also I found that this working for me only if I checked "Contains system headers" checkbox.
I had a working Eclipse setup with 3.6.2 and SDK tools from version 11, and it has been building my main project just fine for quite a while.
For a different project, I thought I needed to upgrade my SDK to the latest and greatest - at this point API 14 (ICS 4.0).
I cannot even reconstruct the steps I went through, but what happened was that my project would seem to build, but I would see that it would say that it was skipping a post-compiler step, and at the end I would have no APK.
I also noticed that it updated my .classpath so that the output path was bin/classes instead of .bin.
Along the way I tried updating my Eclipse to the latest version (Indigo 3.7.1) but this didn't help.
I solved the problem eventually with help from this post on the Google Android forum:
http://code.google.com/p/android/issues/detail?id=21031
For me personally the biggest issue seemed to be solved as follows (qutoe from comment 25 in the forum post)
"I seem to solve the problem with .apk files not being built automatically until run/debug is used (comments #10, #11 etc.). Go to Windows -> Preferences -> Android -> Build and uncheck "Skip packaging and dexing until export or launch" then restart Eclipse. Works for me."
But there is other useful material there. Different people with different projects seem to have different problems with this setup.
I still don't understand the change in the classpath, but it doesn't seem to matter.
In addition, I found a discussion of installing the ADT with Eclipse Indigo which was helpful here in Stackoverflow:
Eclipse Indigo - Cannot install Android ADT Plugin
I also found that I guess because of various uninstalls/reinstalls, for some reason it stopped excluding my .svn directories from the sources. This Stackoverflow post was helpful with that:
Why is eclipse trying to copy my .svn folders from src to bin, and how can I make it stop?
Finally: a tip for really and truly uninstalling Eclipse - everybody says there is no uninstall, and there isn't, but there is a directory that Eclipse leaves in your home directory (in windows 7 under c:\users\) called .eclipse -
Zap it if you really want to start fresh.
In addition, for less extreme measures, there is Project->Clean inside Eclipse, and you can invoke eclipse with "eclipse -clean" for additional cleansing effects. No idea what, but various helpful people along the way suggested trying that to solve problems.
Ah yes - when I first installed Indigo and tried to build, I got a warning that my Java Compiler Compliance level was not up to snuff, which was simply not true - I have only Java 1.6 installed on my machine.
See this post for somebody who had similar experience:
http://marakana.com/forums/android/general/374.html
For me, what worked was simply going to Project, Properties, Java Compiler, then click on Configure Workspace Settings, and click on Ok in the dialog. Didn't need to actually change anything. Just showed it that everything was ok!
Eventually I indeed did clean out my Eclipse and Android installations (including the aforementioned .eclipse directory, and there's also an .android directory in your home directory which you may want to erase if uninstalling the Android SDK Tools doesn't do that - this actually is uninstallable). Installed everything from scratch and then used the additional information provided above and now it's building my APK.
I hope this saves somebody the hours I spent getting my build back in shape.
i put this question in this forum because i am not sure whether this is an eclipse error or an Android error.
yesterday i created an Android application using Google Maps and GPS on Eclipse and it build and ran successfully however today i wanted to do some modification to the code so i started eclipse but it gave me an error.
SDK parse failed
if i try to run it. it says the apk cannot find. how can that be happened? the same application ran successfully on the same environment yesterday. i am using Ubuntu 10.04
Thanks !!
There is a problem with your project, as evidenced by the red x icon on your project title bar shown in the image above. Right-click your project, choose Properties and go through all your properties to make sure they are all still valid. It might be a reference to one of the jar files.
I get this problem all the time, hopefully my solution works for you.
To work around, goto your libraries inside the properties page.
Add any library and then rebuild your project.
Go back and remove the library later for clean up.
The project should still build.