I have searched through Stack Overflow as I know this is a common question, but none of the solutions seemed to work for me. This included cleaning my project, deleting all imports and deleting the project and starting again entirely.
I am using the Eclipse specifically for android on mac (ADT bundle mac).
Whenever I create a new project I have errors immediatley in my src folder on the line
setContentView(R.layout.activity_main);
and also on inflate.
Any suggestions other than those stated? It is literally before I have done any programming so cannot understand what is wrong.
EDIT: Fixed. Downloaded the SDK a second time and this seems to have fixed it.
import The R class. The basic syntax is
import your_application_package_name.R;
If you have already imported it but it is not working then check if there in any error in your resource xmls. If so then r can be not generated and that error will be shown
Change your Project Build Target to the Latest
Right Click Project > Properties > Android > Change the Api to latest version
Try to update the Android_SDK. When you create or import a new Android project the SDk builds the project. The R problem is mostly an update SDK problem.
Related
I need to share an android project with another pc and still be able to edit it on both sides.
For some reason I can't get this to work. I have tried a lot of different combinations to import it and still be able to edit and push changes.
When I try to import the project into my workspace, there is a lot of errors like this:
the type java.lang.object cannot be resolved. it is indirectly referenced from required .class files
Then I tried importing the JRE System library (JRE 7)
After doing this I still get errors. for example this:
Activity cannot be resolved
Then I imported the Android library to the project (API 18). But after doing this, there is a red cross on the project, but not in any classes, files or like..
Therefore I tried to clean the project, which removed the "R.java" and gave me a bunch more errors.
I don't know exactly what I am doing wrong here so I hope someone can help me out.
What is the "right" way to import eclipse projects and still be able to edit and push/pull?
(Btw. I am using BitBucket and SourceTree and trying to import it into my eclipse workspace. )
Found out what was wrong.
By navigating to "Window > Show view > Problems", I found out that the necessary API wasn't available at that eclipse version. So I downloaded it the software and it worked.
I am using android studio to import this project called https://github.com/Pixate/pixate-freestyle-android. However when I import it into android studio the folder under samples, freestyleshowcase doesnt seem to build. The other 2 samples buld correctly. There is a red circle around the java file with a J (error) but there is no error in the file itself. COuld someone please help me out?
You are obviously missing some libraries but it is going to be hard for anyone to tell you which since we do not know the libraries the project needs.You can try Build-->Rebuild Project or Build-->Clean Peoject if it still doesn't work, close and open Android Studio.
If that doesn't work also then you have to go the hard way of identifying the libraries need by the project samples you imported and see if you have them.
When in doubt, you can try the Library Dependency option (using Maven) as demonstrated here:
https://www.youtube.com/watch?v=6BUcx9gGQ3o
That way, you won't have to manually edit the build.gradle file.
These are the errors i get when i import Android sample project ContactsList.
I am new to android. I cleaned the project, Restarted the Eclipse and all. But those are not going away. This is a sample project provided by the Android Doc's, so i think importing this project should not show any of these errors. I am unable to identify the problem with this. Can anyone tell me why am i getting these errors.
I got the solution. The problem is that my project is targeting to some older version of android. At first i tried changing Manifest.xml file android:minSdkVersion="5" android:targetSdkVersion="17" properties. TargetSdkVersion is pointing to the higher versions initially though. Then I went to the properties by right clicking on the top level project folder name, and then i clicked on the Android menu, and there i changed the Project Build Target to the latest one. That solved my problem. Thanks for #Mikel for pointing that it is a version problem.
I was using Android studio now for a long time and it was fine. Recently, not sure what happened, but when I click on debug and have it perform make it complains about the R file and it seems like it doesn't generate it.
The only way it works is if I click on Build > Rebuild Project...problem is that it takes a long time for that to go through.
Is there anything I am missing? I updated the Android SDK tools, etc. as per some of the other suggestions?
Yes this is a known issue in the newest version of android studio. Google has suggested a temporary workaround until they can track down the problem and fix in next release. Turn off external builds in preferences > compiler. It might help.
Source: cannot resolve R into variable after Android studio update and R.java not updated after update to 0.1.6 .
Hope this helps.
Solution for android studio Users :
Goto : Menu tab - > Build - > Rebuild Project
after rebuild Project.R.Java file will be solve automatically ..
I was having the same problem, but it looks like a new update came out today. It seems to have solved the problem.
Try to import android.R, for every class you need R (of the package)
and then compile, it makes different error from before.
And remove all ('import android.R') , and rebuild it.
This trick is not for solving problem in proper way,
but makes the tool refresh.
And remove all "import android.R" , and rebuild it and import them again its working for me
If I make a new Android project in Ecplipse and I try, to open one of the samples from android SDK, I have got an error, look like this:
R cannot be resolved
What can I do, to be able, to run these files? I tried to delete import android.R; but nothing changed.
Thanks
First thing you might try is "clean" your project (option in the menu). If it persists:
There should be an error that stops R from being generated. Check the "problems" tab (?) in eclipse to see what that problem is, and solve that. It could be missing libs, or various other stuff.
You possibly got error in building resources.
Possible fixes:
-refresh your project (F5)
-clean you project and refresh
-see "Console" tab, sometimes the problem is shown there
-reload the Android SDK
-restart the Eclipse IDE
Check your XML-Layout files. The problem come here half a time.
If you are sure it is note your layout file, check in your java build path if the google librarys are well set. (Google APIs)
(sorry for my bad english)