android activity class does not exists?

Question

I have been developing a project in eclipse for an android app. An error which i frequently get is that of- activity class does not exist. But when i just save the manifest file once again the error vanishes and the program runs correctly. Why then do i get the same error again and again. ?

Console error:

[2011-11-18 15:08:38 - link] Starting activity acb.abc.LinkActivity on device emulator-5554
[2011-11-18 15:08:40 - link] ActivityManager: Starting: Intent { act=android.intent.action.MAIN cat=[android.intent.category.LAUNCHER] cmp=acb.abc/.LinkActivity }
[2011-11-18 15:08:40 - link] New package not yet registered with the system. Waiting 3 seconds before next attempt.
[2011-11-18 15:08:40 - link] ActivityManager: Error: Activity class {acb.abc/acb.abc.LinkActivity} does not exist.

This happens to me sometimes when renaming packages. Sometimes when not everything gets properly refactored. Solves easy. — 1737973, Oct 04 '13 at 07:37

score 4 · Accepted Answer · answered Nov 18 '11 at 09:50

4

every time a new activity is added in the application, it needs to be added in the manifest file as well with a new tag. Make sure that u r doing this otherwise the new activity will not be considered. For reference see This

answered Nov 18 '11 at 09:50

Shaireen

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I have my manifest fully updated.! Its just that i go to the manifest, make an error, save it then it runs fine! – Rebooting Nov 18 '11 at 09:52
what do u mean by "make an error"? what kind of error do u make here? – Shaireen Nov 18 '11 at 09:55

score 2 · Answer 2 · edited Dec 05 '12 at 03:02

2

I got this problem today.

Attention that: "class {acb.abc/acb.abc.LinkActivity}"，you should modify the AndroidManifest.xml, change acb.abc.LinkActivity to ".LinkActivity". Then will be OK.

edited Dec 05 '12 at 03:02

Ram kiran Pachigolla

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answered Dec 05 '12 at 02:42

Jack Chen

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it's better to provide the fully qualified class name rather than the relative class name – nickaknudson Jul 26 '13 at 23:57

score 1 · Answer 3 · edited Sep 20 '16 at 12:18

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In may case, in Android Studio, I changed AndroidManifest.xml like this: change main Activity on my custom Activity. Then I start my app on emulation device, I get:

"Error type 3 Error: Activity class {...} does not exist.",

and may app failed.

I was forced delete my app on virtual device (use Application Manager in device) and restarted app in Android Studio. This solution helped me.

edited Sep 20 '16 at 12:18

Garf365

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answered Sep 20 '16 at 12:13

Maksim Ryabovol

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score 1 · Answer 4 · answered Nov 18 '11 at 10:33

You are not declairing your package name correctly in your manifest, thats what I guess. Either post your manifest or go through this discussion.

http://groups.google.com/group/android-developers/browse_thread/thread/ce62996fde2d4727

Cheers.....!!!!!!

score 0 · Answer 5 · edited Oct 11 '12 at 19:55

0

I saw this error because I had installed my app as a built-in app, then disabled it to removed it. I thought I had removed it when I tried to run my app in eclipse as a "normal" app. I discovered that my app was still in system/app.

Once I removed it, I didn't see this error when running my app in Eclipse.

edited Oct 11 '12 at 19:55

Uwe Keim

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answered Jul 26 '12 at 17:53

yladsr

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score 0 · Answer 6 · answered Sep 17 '14 at 19:04

i had this problem too and it was because i had a second tag in my AndroidManifest.xml on android studio <= 0.8.6 it was no problem

i'm not sure yet how to handle this if one needs two application's defined here

my use case was related to saving the application state in a separate activity e.g. http://blog.tomgibara.com/post/126377651/global-application-state-in-android

score -2 · Answer 7 · answered Sep 02 '15 at 20:02

-2

Error: Activity class {com.myapplication5.myapplication/com.myapplication5.myapplication.MainActivity} does not exist.

answer: file-projectstructur-flavors-minsdk version =4 ok

answered Sep 02 '15 at 20:02

Kavos Khajavi

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android activity class does not exists?

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