1. AC Question's Avatar
    I have a Samsung s6 & when I try to login to facebook after deleting a bunch of I thought was unnecessary applications I now get this error:
    Login Failed
    Sorry, an unexpected error occurred. Please try again later. (NullPointerException: Attempt to invoke virtual method com.facebook.omnistore.CollectionName$Builder
    com.facebook.omnistore.Omnistoree.createCollectionNameBuilder (java.lag.Strig)' on a null object reference)
    03-23-2016 09:14 AM
  2. Golfdriver97's Avatar
    Welcome to the forums. What apps did you remove?
    03-23-2016 09:23 AM
  3. n2hlth's Avatar
    that's the problem, i'm not sure which apps are now gone. i thought i only deleted apps i could uninstall, not the ones that warn you it could effect how other apps/system runs. my phone was constantly freezing up & was either stopped completely or running extremely slow then timing out. i was so frustrated, i think i uninstalled something i needed. i don't understand the error message i'm getting & if it was a java issue (someone had mentioned) why does it only pop up when i try to login to facebook?
    03-23-2016 11:39 PM
  4. Golfdriver97's Avatar
    Did you root and delete apps, or just disable them?
    03-24-2016 10:17 AM
  5. n2hlth's Avatar
    I don't know how to root an app. my phone was running extremely slow & then losing connection over & over. I was very frustrated & thought maybe I have too many apps downloaded & went to app manager & uninstalled everything I never use. If it only gave me an option to disable or upgrade, I didn't touch it.
    03-24-2016 10:36 AM
  6. Golfdriver97's Avatar
    OK. You can reset app preferences in settings>apps>menu>reset app preferences. This will revert all apps as they were out of the box.
    Any defaults are reset, all apps that were disabled are enabled. This might fix what is going on.
    03-24-2016 10:55 AM
  7. sirish17's Avatar
    I am using S6 aswell. I didn't delete any apps. My wife uses my phone sometimes to log into her fb. Since morning I m getting the same error message and I am unable to login my fb.
    03-25-2016 09:57 AM
  8. Giannini's Avatar
    Sorry, an unexpected error occurred. Please try again later. (NullPointerException: Attempt to invoke virtual method 'com.facebook.omnistore.CollectionName$Builder com.facebook.omnistore.Omnistore.createCollectionNameBuilder(java.lang.String)' on a null object reference)

    I WAS GETTING THE ERROR MESSAGE ABOVE. I LOGGED OUT OF MY FACEBOOK TO LOG INTO ANOTHER FACEBOOK ACCOUNT AND IT LET ME LOG OUT BUT WOULD NOT LET ME LOG IN EITHER FACEBOOK ACCOUNTS. I TRIED DELETING APPS BUT IT STILL DIDN'T WORK. I WAS RACKING MY BRAIN ON WHAT TO DO UNTIL I CAME ACROSS THIS FORUM. MY SETTINGS MENU MAY BE DIFFERENT THAN THE S6. I HAVE THE NOTE 4.
    HERE'S WHAT WORKED FOR ME: SETTINGS, APPLICATIONS, APPLICATION MANAGER, SCROLL TIL YOU FIND FACEBOOK AND CLICK ON FACEBOOK, CLEAR CACHE AND THEN CLEAR DATA THEN CHOOSE OK. I DID AND I AM NOW LOGGING INTO FACEBOOK. IT'S LI K E THE POSTABOUTBTHE S6 RESETTING DEFAULTS. IT WORKED FOR ME...
    Note: settings menu may be worded differently in your phone so please keep that in mind when in the settings menu..
    DennisShort and belodion like this.
    03-25-2016 12:36 PM
  9. Nikunj mandaliya's Avatar
    don't opn my facebook why
    03-31-2016 10:51 AM
  10. sarahcook's Avatar
    How did you fix this?
    04-05-2016 09:30 AM
  11. Rukbat's Avatar
    For now? Give Facebook 24 hours to figure it out. (A lot of times, the phone is blamed for an error that's being caused by the site.)
    04-05-2016 12:36 PM
  12. KayB48's Avatar
    I have not deleted any apps and I am getting this error message: Sorry an unexpected error occurred. Please try again later. (NullPointerException:Attempt to invoke virtual method 'com.facebook.omnistore.CollectionName$Builder(java.lang.String)' on a null object reference) I am using a Nexus 10 android tablet. I can log into Facebook o my computer. What can I do to remedy this?
    04-09-2016 02:36 PM
  13. Pilipinas 50's Avatar
    I'm getting an exception error when logging facebook
    04-11-2016 03:02 AM
  14. DennisShort's Avatar
    I wasn't able to log into Facebook anymore on my Samsung Galaxy Tab S2. I didn't delete any apps. Here is what worked for me...I went into Apps > Settings > Applications > Facebook. In the Application info I pressed Clear Cache. Then I pressed Clear Data. After doing both of these I am able to log into Facebook again. Good Luck!
    04-11-2016 07:40 PM
  15. TVargas1973's Avatar
    I have a Samsung s6 & when I try to login to facebook after deleting a bunch of I thought was unnecessary applications I now get this error:
    Login Failed
    Sorry, an unexpected error occurred. Please try again later. (NullPointerException: Attempt to invoke virtual method com.facebook.omnistore.CollectionName$Builder
    com.facebook.omnistore.Omnistoree.createCollectionNameBuilder (java.lag.Strig)' on a null object reference)
    Except i have a LG phone but same null error when loggin into facebook. How do i fix it?
    04-13-2016 03:18 PM
  16. Sergio Pedroza guardian's Avatar
    No puedo entrar
    04-14-2016 08:02 AM
  17. haberll's Avatar
    @DennisShort: Your instructions worked for me. Thanks for sharing!
    04-14-2016 08:12 AM
  18. 1217atena's Avatar
    Nene cito abrir mi facebook
    04-14-2016 08:27 AM
  19. tayoxy's Avatar
    Am not sure if this will work.... but check your date and time if they're accurate. If not, try to adjust it and try again
    04-14-2016 05:01 PM
  20. Shaniqua20's Avatar
    I have a Samsung note 5 .and I'm getting same message is everyone else
    04-19-2016 01:34 PM
  21. Kyeegreene123's Avatar
    My facebook not working right
    04-21-2016 02:35 PM
  22. Rukbat's Avatar
    1. Facebook isn't known as a solid, "works all the time" app.

    2. Deleting an app that has nothing to do with the one that's causing the problem could be due to the fact that the app you're using uses part of the one you uninstalled for some function.

    3. "NullPointerException" means that some variable hasn't been set - probably in one of the deleted apps. So the Facebook app creates the variable (which is now null), calls the other app to set it - and it never gets set because the app was uninstalled - and instead of exiting neatly with a message that app X is missing, it keeps running until the pointer is used - and crashes the app, because trying to do something at address 0 (which is where a null pointer is pointing) is usually an error (it depends on the operating system).
    04-21-2016 04:40 PM
  23. naomi alicea's Avatar
    How can I fix it
    04-23-2016 06:17 PM
  24. 28 n's Avatar
    I'm getting an null exception:null when logging into Facebook.how can i fix it?
    04-23-2016 11:53 PM
  25. omar1979's Avatar
    Go to sittings/application manager/facebook/delete data sitting then login again
    04-24-2016 03:35 AM
46 12

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