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Editorial Team
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Asked: 2026-06-10T10:11:36+00:00

I am using the Facebook iOS SDK 3.0 , and I just upgraded to

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I am using the Facebook iOS SDK 3.0, and I just upgraded to the new Facebook iPhone app (5.0).
Now, whenever I call [FBSession activeSession], my app crashes with the error:

-[SBJsonParser errorTrace]: unrecognized selector sent to instance 0x499700

This only happens if I have the new Facebook 5.0 app installed. If I deinstall it, and wait for a little bit, my app runs fine. Also, this never happened before with the older version of the Facebook app.

Has anyone run into this before? There seems to be a bug report with the same issue on the Facebook Developer page, but it hasn’t been dealt with yet.

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1 Answer

  1. Editorial Team

    This is because of conflict within the SBJson libraries. We’re working to get this resolved and should be fix ready .

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