Can't run android app from eclipse

Question

Hi eclipse is giving me the following problem all of a sudden and i can't execute my app.

This is the screen shot of the error.

enter image description here

I have did the following things.

Clean>build.

Restart eclipse

But the problem is not going and i have not changed any thing in eclipse only worked on the php file as my app accesses mysql db.

Please help as i am due to submit a project today.

This is my error log.

check the name of launching class name in your manifest there should be no gaps between characters of the class name — Abhinav Singh Maurya, Feb 13 '13 at 10:05
i havent opened the manifest ever since i created the pproject and it was working well 1/2 hr ago it is suddenly giving me this error — user1844638, Feb 13 '13 at 10:08
you have nullpointerexception in LoginActivity. Paste your activity code with used layout. — Pratik Sharma, Feb 13 '13 at 10:08
have you checked the problems view? Check what is being displayed there. — Misha Bhardwaj, Feb 13 '13 at 10:09
Try this thread: http://stackoverflow.com/questions/3541811/unable-to-launch-android-application-in-eclipse-an-internal-error-occurred-duri — savemaxim, Feb 13 '13 at 10:09
Hi pratik as i told above the app was runnong well but it suddenly started giving me the error. — user1844638, Feb 13 '13 at 10:09
You might be missing something that's why you are getting this exception. — Pratik Sharma, Feb 13 '13 at 10:10
paste some code and error logs so that we can get some more information — Abhinav Singh Maurya, Feb 13 '13 at 10:11
Also check what android target have you set for your app. Make sure your emulator is running fine and able to run your app. — Misha Bhardwaj, Feb 13 '13 at 10:11
@user1844638 try to make copy of your project folder and import that again in the eclipse. Then it still gives error then you must have something wrong in your code. — Pratik Sharma, Feb 13 '13 at 10:14

score 1 · Accepted Answer · answered Feb 13 '13 at 10:18

1

Try creating new emulator and set it as your target device from run configurations of your application. Try running your application from there.

answered Feb 13 '13 at 10:18

Misha Bhardwaj

I think it is a eclipse problem as i get the error log as soon as i restart. – user1844638 Feb 13 '13 at 10:20
I dont think this error log is preventing you from running your application. Your app is not finding a target to run on that's why its throwing null pointer. Just try the above steps once. May be that wud help. – Misha Bhardwaj Feb 13 '13 at 10:45
Hi thanks i think that was the problem though it gave me a launch failed it was probably coz the emulator was not up and running i think the issue is fixed. I did very much like to know why i got the error when it was working perfectly 1hr ago even when i didnt make any changes. – user1844638 Feb 13 '13 at 10:57
do you know why it happened? – user1844638 Feb 13 '13 at 11:09
generally when error comes at launch time and not at compile time....the most likely cause is the unavailability of target emulator or some problems in the existing emulators. Restarting or recreating them may solve the problem. – Misha Bhardwaj Feb 13 '13 at 11:12

1 Answers1