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FAQ: How to fix "Unknown BIB Error" in After Effects

Adobe Employee ,
Sep 12, 2022 Sep 12, 2022

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When do I get the "Unknown BIB Error" error in After Effects?

A bad font or corrupted font cache could cause this error to appear in the following situations:

  • While previewing.
  • When opening a project.
  • In some cases, you might see this error at launch.

unknown bib error.png

Solution:

Our community recommends the following solutions:

Reload Illustrator files - Right-click the Illustrator files in the Project panel and select Reload Footage

Remove newly installed and duplicate fonts. Instructions are below - 

Clear the font cache. Instructions are below -

Clear After Effects preferences -  https://adobe.ly/3t5x7Hd 

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Community Beginner ,
Sep 28, 2022 Sep 28, 2022

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I found out it could also happen if Ae is having trouble reading Ai files so reloading all imported Illustrator files fixed it for me 😄

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New Here ,
Sep 29, 2022 Sep 29, 2022

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This is what fixed it for me too, thanks!

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New Here ,
Oct 17, 2022 Oct 17, 2022

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how i can reload all the ai files? do I do it individually? 

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Community Beginner ,
Oct 17, 2022 Oct 17, 2022

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No need, you can just type ".ai" on the search bar on the project window and it will show all illustrator files then all you need to do is select all of them with ctrl+a (cmd+a on mac), right click and click on "reload footage"

 

obs: some of it may still render as a missing file if that happens you will need to select it and click on replace footage>file, select the original file import it,  make sure to select "choose layer" in the layer options and select the layer yo'll be replacing

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New Here ,
Oct 19, 2022 Oct 19, 2022

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Hey Gabriel.. This helped.. Thanks..

 

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New Here ,
Oct 27, 2022 Oct 27, 2022

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Thank you! It helped me too

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Adobe Employee ,
Nov 10, 2022 Nov 10, 2022

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Thanks for sharing the incredible solution, @Gabriel Mega.

I'll add it to the FAQ.

 

Best,

Nishu

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New Here ,
Dec 26, 2022 Dec 26, 2022

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Thank you so much!! 

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New Here ,
Mar 17, 2023 Mar 17, 2023

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Thanks !!! It fix it by reload .ai !

Merci ça a fonctionné en recharchant les fichier .ai !

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New Here ,
Jun 25, 2023 Jun 25, 2023

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worked for me too thanks

 

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New Here ,
Oct 22, 2022 Oct 22, 2022

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This fixed it for me.

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New Here ,
Jan 02, 2023 Jan 02, 2023

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you're a hero, Gabriel!

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New Here ,
Jan 12, 2023 Jan 12, 2023

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Y cómo se supone que se hace eso?

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New Here ,
Feb 15, 2023 Feb 15, 2023

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You are my hero 🥰

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New Here ,
Feb 21, 2023 Feb 21, 2023

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excellent and time-saving trick....Kudos broo!!!!!

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New Here ,
Mar 02, 2023 Mar 02, 2023

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thank you it's working now

 

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New Here ,
Mar 06, 2023 Mar 06, 2023

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Muito obrigado, Gabriel! Salvou a minha vida!!!!

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New Here ,
May 24, 2023 May 24, 2023

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Thanks

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New Here ,
Jul 27, 2023 Jul 27, 2023

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off caps loack....

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New Here ,
Dec 28, 2022 Dec 28, 2022

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After effects warning: unknown BIB Error Source sream Error, CT, 0 (83::3)

 

not able to fix this issue by adobe team

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New Here ,
Apr 12, 2023 Apr 12, 2023

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solution worked for me ./... 

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New Here ,
Apr 12, 2023 Apr 12, 2023

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"Unknown BIB Error" in After Effects is quite uncommon and could be caused by various issues, such as outdated software, corrupt files, or hardware issues. Here are some steps to help you resolve the problem:

  1. Update After Effects: Make sure you're running the latest version of Adobe After Effects. Outdated software may contain bugs or compatibility issues that can cause errors. To check for updates, open After Effects, go to Help > Updates, and follow the on-screen instructions.

  2. Clear cache: Clearing the cache can help resolve issues caused by corrupt or outdated temporary files. Go to Edit > Purge > All Memory & Disk Cache, and then click "OK" to clear the cache.

  3. Delete preferences: Corrupt preferences can cause errors in After Effects. To reset preferences, close After Effects, then hold down Ctrl+Alt+Shift (Windows) or Command+Option+Shift (Mac) while launching the software. You will be prompted to delete the preferences file. Click "Yes" to continue.

  4. Check file formats: Ensure that the files you are using in your project are compatible with After Effects. Unsupported or corrupt files can cause errors. Replace or convert any incompatible files before importing them into your project.

  5. Run as Administrator (Windows): Right-click on the After Effects shortcut, select "Run as administrator," and see if the issue persists. Running the software with administrator privileges can help resolve permission-related issues.

  6. Check hardware: Ensure that your computer meets the minimum system requirements for running After Effects. If your hardware is outdated or incompatible, consider upgrading to improve performance and stability.

  7. Reinstall After Effects: If none of the above steps work, consider uninstalling and reinstalling After Effects. This can help resolve any issues caused by corrupt or missing files. Remember to back up your projects and custom settings before uninstalling.

If you still encounter the "Unknown BIB Error" after trying these steps, consider contacting Adobe Support for further assistance. They can help identify and resolve more complex issues that may be causing the error.

Austin Visuals 3D Animation Studio

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New Here ,
Apr 30, 2023 Apr 30, 2023

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Uncommon for you, but it happens to me all the time, with 70% of my animations, it's a stressful bug that doesn't let me work.

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Explorer ,
May 03, 2023 May 03, 2023

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What Media Codecs to you have? We use .mxf long gop. I assume some troubles from this side or maybe the blackmagic Decklink card we are using for video playback.

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