I was working on an android tutorial and it wanted me to import the library from another project .The import worked and the project works correctly. But I noticed that doing that messed up several of my other projects (the ones that use Android 2.1) by apparently messing with the build path. Now instead of seeing "Google APIs [Android 2.1]" under the gen folder I see "Unable to get system library for project".
I verified the following:
I right-clicked the project and went to Properties I see that the correct Project Build Target is checked(Google APIs [Android 2.1]), but "Unable to get system library for project" is still shown above the assets folder and below gen and Android Dependencies. Cleaning all projects doesn't help.
How can I fix this problem?
is there a way to fix this issue globally or do I have to do it one by one?
I had the same problem. Try
Right click on your project
Go to properties
Click the Android section
Select a different target api (assuming one is already selected, as mine was - otherwise, select the one you want and jump to step 9)
Click OK
Do steps 1-3 again
Select your original target api
Click OK
Clean and build your project
Worked for me, anyway.
Derived the solution from:
"Unable to get system library for project" after I upgraded to Android SDK 2.3 and ADT 8.0
Error in .classpath on your project. It not connect to android sdk. Fix it and clean project. :-)
This happens when you are targetting an API version that for some reason is not mapped on your buildpath.
See which is the version of the SDK you are pointing to at the project.properties file.
Go to the SDK Manager at Window->Android SDK Manager
Check the Android API item that matches the version you want to use, OR, click on the latest one and then update your project.properties file.
Make sure your project build configuration is Project->"Build Automatically"
Retsart Eclipse (claning and rebuilding may not refresh all the project properties)
Borrowing from #Erhannis answer :
"
Right click on your project
Go to properties
Click the Android section
"
When I view the build target everything looked fine :
So I checked another build target , hit apply, and then re checked my original build target (Android 4.4.2) and re-hit apply. My project then compiled.
For me the project.properties file was missing (it was code from a repo I checked out). So I just created one with this line:
target=android-20
After that, Erhannis' solution worked for me.
Just for completing Erhannis answer: If you fixed the problem but it appears again when you restart Eclipse, then just go to the file local.properties on your workspace folder and verify that the location of the Android SDK there is correct.
At times, when only single Android SDK version is installed on your system, and if it gets changed either by un-installing / re-installing Eclipse, or otherwise (directly through SDK Manager), then this issue might crop up.
.
This is accompanied by the message like this on Eclipse console:
YourApp] Unable to resolve target 'android-22'
.
A simple workaround to this issue is:
Open AndroidManifests.xml of the project, and in the:
<uses-sdk
android:minSdkVersion="14"
android:targetSdkVersion="21" />
change the targetSdkVersion to the one currently installed on your system
Next, open the project.properties file and update
target=android-21
to your current SDK version
Finally, clean and re-build the project
Right Click on Project-> Select Android tools -> Select Fix Project Properties
This did the trick for me.
You need to click on the menu icon with the Android sitting in the grey box with a white arrow pointing down "Opens the Android SDK Manager".
or, from the command line, run:
%ANDROID_HOME%\tools\android sdk
Related
I have created a new project using the latest version of Android Studio (0.2.2), this is a fresh install of studio. When I am in the project explorer view, it fails to show me any folders for my project. I should see a root project folder, and within it the .idea, gradle, and module folders, but they are not showing.
Here is what I expect to see (taken from the sample project created on first boot):
But here is what I see immediately after the project's creation:
I cannot figure out how to expose my project's folders! I do not want to develop without the project explorer, it's simply too much of a hassle. Did I create the project incorrectly, or am I missing some not-so-obvious setting somewhere?
Thanks.
The problem here is that I assumed android studio would create a module for the application. I assumed this because it asked me at the beginning for app name, module name, package, sdk info etc.
This assumption turned out to be false. You must create your first module manually through File > Project Structure. After that is done, the project explorer shows the files.
File -> Project Structure -> Modules
Add Button (Green plus button) click -> New Module Select
New Module window -> "Content root" change path button click to select "Project root file path"
Apply to change save and "OK" button exit.
In the project Explorer there is a drop down menu where you have selected project, now change it to project files.
I hope this will solve your problem. reply if it didn't.
You have created a new gradle project not a new android project.
Update your android studio tools to 0.2.3 - Go to Help menu - select check for update.
then Update your android sdk tools, android support repository, android support library and android build tools using android sdk manager.
And update some configuration in project structure. Go to File menu->project structure -> in projects tab select Android SDK as default sdk and in SDKs tab set correct path to updated android sdk.
Now restart android studio and try to create a new project and it should work fine.
(Noted for posterity) I had a similar issue come up recently, when importing an Eclipse android project. The issue was that the source folder wasn't added as such. I had to manually go into Project Structure -> Modules -> Sources and make sure that the "src" folder wasn't excluded and was marked a source folder.
Although this question is asked years ago. But now following simple solution worked for me.
Clicking 'Sync Project With Gradle files' makes all directories visible.
I had this exact same issue, there are some problem if you upgrade from 0.1.9 version to 0.2.0 in Windows.
Android Studio 0.2.0 Release
The solution (which worked for me) was to completely uninstall Android Studio and reinstall the 0.2.0 version.
I had the same problem today. Additionally, the IDE posted an "Assertion Error" into its event log.
Downloading and reinstalling the preview version, then applying the patch to 0.2.6 worked for me.
Change the SDK to a level that you have installed in the SDK manager. The SDK manager can be accessed from Tools -> Android -> SDK Manager. For me, Android Studio was packaged with API Level 17 but the new project wizard tried to target API Level 18.
I am just starting to learn Libgdx, and am in the process of importing the 4 projects[desktop, main java game, android, html] into Eclipse Juno. I have not added any lines of code, just trying to get them to run on the different platforms.
It runs fine on the desktop version, but when I tried to run it in the Android emulator I get the error. Cannot find mygdxgame.apk!
I realized that my gen folder is completely empty, there is no R.java for the project. I have tried a number of things to make this work, but none of it is working. I am listing the things I have tried so far, and the hopefully the reason why I am asking this repeatedly asked question.
Project > Clean
Package Explorer [right click on my project] > Android Tools > Fix Project Issues
Deleted gen folder and Project > Clean
Restarted Eclipse
Deleted the project and Imported it again
Set Compiler Compliance Level to 1.6 for both main java game and Android project
Added a dummy XML to the android project and tried clean, and deleted it
Unchecked and rechecked Build Automatically
Checked my target-sdk in project.properties and made sure it is the same Project Properties -> Android and in my Manifest.xml
[Right click on project] > Properties > Java Build Path > Source tab, Removed mygdxgame/gen folder and then added it again
Made sure Project Properties > Android > Is Library is unchecked
Nothing has worked so far. My gen folder is still empty and I am unable to run the Android project because of the same error. Cannot find mygdxgame.apk!
What else can I do to fix this? In case this is answered I would appreciate someone giving me a link to the solution, as I have been pouring through SO and Google in general for nearly 2 hours now, with no success.
Regs
What happened to me a few days ago:
1.- I got the SDK Tools 22 update and I installed it, no other update appeared in my sdk manager... so I closed it.
2.- Then I got that "NO APK" error and tried every answer I could find.
3.- I opened SDK manager again, and I noted SDK Platform Tools also got an update and there was a new one: SDK Build Tools. Both of them didn't show up when I first updated the SDK Tools.. so.
ANSWER:
Open SDK Manager and check if your SDK Tools, SDK Platform Tools, SDK Build Tools are updated :)
On your build path, you should have a reference to the main project, under Projects tab of Java Build Path. Under Libraries, you should have gdx-backend-android.jar and gdx.jar along with Android not being a library.
Please check if Android is set as a library. If so, uncheck it. To do that, right click on the project and then select Properties. Choose Android on the left panel of the new window. Uncheck Is Library if checked.
Here's something might help-
Unable to run Android app, Could not find .apk issue in eclipse
I would take alook at your buildpath if all libs are correct. If it's a projekt from an other computer the libs are often at different places so you need to correct those manual. If they are not correct the android projekt do not generate your R. class and so on. So do rightclick on the core projekt -> Buidl Path -> Configure Build Path. Now take a look at the libs if all are there. I had the same issue with the android 15 apk so i need to add it manual. The clean or such do not fix such because eclipse can't know where you have all your libs.
If you really dont get it run i would recoment to use the setup ui of libgdx. It does noramlly handle all imports and so on for you. You can also use it to update your current projekt and so on.
Else i would read the guide for Manual Project Setup of Libgdx.
Libgdx setup Guide
I hope this does fix it.
I've been having a terrible time trying to get a simple Map to appear in an app as shown on the Google Maps v2 documentation. Eclipse keeps saying:
The container 'Android Dependencies' references non existing library 'X:\Android Development\workspace\google-play-services_lib\bin\google-play-services_lib.jar'
I found a couple people on here that had the problem and I followed those steps with no luck. I have Google Play Services installed and I even uninstalled and reinstalled it. I have imported google-play-services_lib project into Eclipse and checked move to workspace.
Any help would be amazing as I cannot get this to work. I did check in the location and there isn't a file there, so I don't know why it is missing since I have installed Google Play Services.
This answer worked for me https://stackoverflow.com/a/16398399/1874332
I met this issue as well.
My solution is,
clean project google-play-services_lib firstly then clean my project
which depends on play service library
I fixed this issue by:
Right click "google-play-services_lib" project, select "Properties".
Click "Android" on left panel.
Check a version of Android SDK on "Project Build Target", then select "OK" button.
Rebuild google-play_services_lib project, now you have "google-play-services_lib.jar" in "bin" folder.
Clean and rebuild your project.
Details: google-play-services_lib project's original build target is android-10. If you do not install this version of Android SDK in Eclipse, Eclipse just don't build it, leaving an empty bin folder. And our project reference to a .jar file in this bin folder, which results in the error message. So to fix this issue is just to check an appropriate build target for google-play-services_lib project.
In Eclipse open Project -> Properties.
Select Android on left.
Check on the bottom that you have a reference to Google play services with a green checkmark. If not, click Add and add the google play services library
I fonund my answer. I hope this helps someone.
I've installed several versions of Android Build Tools. (17, 18, 18.1, 19).
I read other questions and answers. Someone pointed Build Tools.
So, I went to the SDK manager and I removed all Build Tools but not latest. (19)
Clean google-play-servies. And re-build.
Clean my project. And re-build.
Voila~! Thanks all~! I'm very happy!!
I've tried everything but nothing works for me even Google sample projects, at last I've updated all the packages in sdk and eclipse ADT plugin to ADT 14, then it works fine :-)
I solved this by right clicking the google-play-services_lib and building the project.
I 'deleted' it from the workspace and then re-added it, to make sure when I wasn't altering settings / hadn't changed anything important. This built successfully.
I then built my main application and it worked successfully.
I was getting strange path errors and android-9 resolution errors. But it seems to be working now.
My solution is,
clean project google-play-services_lib firstly
then clean my project which depends on play service library
I simply re-imported google play services library project and it worked!
I had the same problem. In order to fix this, you must ensure that your project supports same version of android sdk that is specified in the google-play-services-lib.
So, in my case, I have project that has Minimum Required SDK set to API15. So, once you have imported google-play-services-lib into your project following these steps here https://developer.android.com/tools/projects/projects-eclipse.html#ReferencingLibraryProject, make sure you open you see the google-play-services-lib in your Package Explorer in Eclipse. Expand it, right-click on it and select Properties. In the Project Build Target, make sure you check an SDK that is at least equal to Minimum Required SDK set in your project, in my case API15:
I was facing the same issue and got it solved when I updated my eclipse Android SDK tools.
I was using version 22 and when I updated Android SDK tools to 22.0.1 the error vanished and I could build my project.
I hope this helps someone...
First of all right click on the Project and import google-play-services if exist otherwise follow the steps told by #yoah (import it under sdk->extra->google->google-play-service-libproject->google-play-services_lib) and if still the problem doesn't solve then there may be multiple problems with multiple solution..
Solutions.
Restart eclipse
Clean the Project
upgrade google-play-services
Installing the new Build Tools did the trick. They were not
automatically included when I updated the SDK
If you have import the code . Be quiet sure to copy it to work space
otherwise this error may occur.
In Eclipse. Right click on your project -> "Android Tools" -> "Fix Project Properties"
I was working on an android tutorial and it wanted me to import the library from another project. All well and good. The import worked and the project works correctly. But I noticed that doing that messed up several of my other projects (the ones that use Android 2.2) by apparently messing with the build path. Now instead of seeing "Google APIs [Android 2.2]" under the gen folder I see "Unable to get system library for project". When I right-click the project and go to Properties I see that the correct Project Build Target is checked(Google APIs [Android 2.2]), but "Unable to get system library for project" is still shown above the assets folder and below gen and Android Dependencies. Cleaning all projects doesn't help. How can I fix this problem, and is there a way to fix this issue globally or do I have to do it one by one?
In the project root folder you should have file named project.properties
---- file content -----
target=android-16 ## <--- make sure that it is there and that you have proper sdk installed
For me, the problem was that in the Project settings - Android tab, I had no Android version selected.
For me I had SDK version 8 selcted, but if I selected the next highest version, applied, then selected version 8 again and apply, fixed the problem.
For me, what worked was to restart Eclipse. Hope this helps.
I'm starting to learn Android in Eclipse. But every time I try to create a project the gen folder is empty. So I don't get the R file(or whatever else is in that folder, if anything). Clean does NOT work. There was never an R to begin with. Do I need to download something to make it generate it?
had the same problem. Check in the Android sdk manager, tools and check if you have installed android sdk build-tools. had the same problem because i hadn't installed it.
I had this problem because I had two projects in the same folder and one was the library of the other. Then Eclipse built the projects in the wrong order. What I did to fix this was close the non-library project and then open it again (after the built of the library project), which made it work.
None of the solutions posted here worked for me: Clean, changing options, build errors, etc. The problem was caused by importing the Android project as a normal project, i.e. using:
Import > General > Existing Projects Into Workspace
instead of using
Import > Android > Existing Android Code Into Workspace
One of those
Getting rid of 'import android.R' line.
Cleaning the project and then building it again.
Closing project and then opening it again.
may help.
May be your problem was related to incorrect target build settings.For example if you use an element in your layout that is available in greater Android targets.You can see more details here.
STRUGGLING FROM THIS BUG FROM LAST TWO DAYS. FINALLY SOLVED IT :)
The best way to get rid of this is to go to WINDOWS option on the tool bar -> ANDROID SDK MANAGER -> and tick TOOLS option on the top tools bar (i.e. all all android sdk tools , android sdk platform tools , android sdk build-tools.) and install.
After updating all these too latest versions , go to HELP and hit CHECK FOR UPDATES and install all these new version plugins.
Last step is to go to PROJECT option in the tool bar and uncheck the BUILT AUTOMATICALLY option and go to CLEAN and perform clean on required or on all projects.
I know this method might consume some of your net mb's but will definitely solve your problem.
E.njoy...:)
I ran into the same problem. I had incorrectly set the path of the Android SDK. Setting the path in Windows -> Preferences -> Android did the trick for me.
I had the same problem. Just add these two line in your project.properties file
target=android-19
android.library.reference.1=../appcompat_v7
I happened to have the same problem, solved by "Right click on your project and then click Build Project".
Try this,
Right click your project
Select properties.
Select Java Build Path
Click add Folder
Select the gen folder
Click OK.