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Salesforce for Social media error

After installing the App Salesforce for Social media when trying to grant facebook access this error pops up:


System.NullPointerException: Attempt to de-reference a null object
An unexpected error has occurred. Your solution provider has been notified. (sf4twitter)


does anyone know what this is or how can i fix it?

Shashikant SharmaShashikant Sharma

You must be refering a null value.

Like this


Account a;


String str = a.Name; //because a is null I can not reference a to get any thing else like here i refer a to get a.Name


Its an app exchange APP and it does not show the Apex class in reference, im not sure what its calling.