When I add a new activity, add the xml file, and add the palette on the xml file, my R class cannot contain it automatically. Anyone who knows the cause, I beg you let me know, thanks..
R class should be auto generated when the build has succeeded. There can be errors in your xml file which prevents R class to be generated. Check console for errors.
Also check if you have imported it to your class on your class headers. Usually causes errorsif its imported.
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How do I solve this error in my R.java file. I have cleaned the project and set the resources to UTF-8.
public static final int editText-contact=0x7f050073;
it underlines the "dash"(hi-fen) in red. I have tried to edit it but the logcat stated:
[2014-05-28 15:46:42 - MIPS_HC] R.java was modified manually! Reverting to generated version!
what other ways that i could remove the error??
I got this error when i changed my #+id/RelativeLayout1 to #+id/addnewadmin. I also changed the ids for my individual components like #+id/textview01 to #+id/textview01_firstN.
Is that a wrong move to do because I am still a beginner in android programming. Please help. Thanks.
Read Java naming conventions again. You don't use a hyphen in names.
Simply Replace:
editText-contact
with:
editText_contact
video_view cannot be resolved or is not a field MainActivity.java /mp4player/src/com/project/mp4player
when I try edit manually
like " public static int video_view;"
in the R.java
It always again and again reverts to the original i.e
R.java was modified manually! Reverting to generated version!
How to fixc this type of issues.
You should never edit R.java manually it is automatically generated by looking at your xml files.
What you should do is have a VideoView in you activity_main.xml with android:id="#+id/video_view and then it will generate it in the R file.
check your R import,
it should be the R.java from your package, not android.R
and yes, you must have a view with id video_view on your layout xml file
i am trying to insert new activity in my android application,after inserting the new activity it gives error in the R.java file,
String class
public static final int =0x7f050009;
it erase the variable name,and don't allow to update variable name. Is this problem occurs because i inserted new activity in the application,or problem is other ?
R.java is generated by android automatically. You don't(shouldn't) write/modify it. Just delete it and then clean and build the project again.
Try to clean you project from Project>Clean.. and build again.
When you create a new activity and after adding it in android manifest xml file, then building an application in eclipse should re generates the R.java.
If 'Build Automatically' enabled in eclipse, then on saving manifest file itself will trigger re generating R.java. Don't do anything in R.java its automatically generated.
if u create the different packages for your project Like Activity, Fragment,Bean.
In such case R will show in red color at setContentView method.at that time keep cursor at R and press ALT + ENTER it will show for import R.
click on it..
it will resolve your problem.
I'm getting R cannot be resolved error.
I read R cannot be resolved - Android error. But there android.R file.
My project compiles if .java files contain import com.companyname.productname.R statement.
If I change my productname in AndroidManifest.xml there's many errors saying package com.companyname.productname does not exist.
I tried to remove all import com.companyname.productname.R lines, but then I got package R does not exist errors on lines with R.*. How can I work around this? Thanks.
Update:
So answer is yes, I must import com.companyname.productname.R. I managed to compile project after changing productname in AndroidManifest and find-and-replace all import com.companyname.productname.R statements with new productname.
You custom R class is generated based on the package name in your AndroidManifest. So if you change it there, it will be newly generated with the new package name.
Therefore make sure that you import the correct one and remove all old imports.
If you R class is not generated, you should check the for XML errors in your resource files and/or your AndroidManifest. Fix the issues there and your R file should be generated again.
I am getting error in R.java file.
The error is
"The type R is already Defined."
I have tried deleting the R.java and Cleaning the project.
step i have wrote if this situation raise ::
dont delete it, clean it.
goto Windows >>show view >>console and try to solve error?
goto Project >>click -> build automatically
remove import of R from import section
goto layout file and check that is there any id is same name ?if yes then change it
in layout file delete any single space,save and refresh and run.
Reason is that you have checked two Builders that try to generate the same class.
You just have to uncheck the Java-Builder from Project->Properties->Builders.
May be there are two builders for the project.check it in project->properties->builders. I too had the same problem.
Chk this out: Fairtec: Type R is already defined