What are tern.js Error Messages?

General tern.js Runtime Errors

tern.js file errors often occur during the startup phase of Adobe Flash Professional CC, but can also occur while the program is running. These types JS errors are also known as “runtime errors” because they occur while Adobe Flash Professional CC is running. Here are some of the most common tern.js runtime errors:

• tern.js could not be found.
• tern.js error.
• tern.js failed to load.
• Error loading tern.js.
• Failed to register tern.js / Cannot register tern.js.
• Runtime Error - tern.js.
• The file tern.js is missing or corrupt.

Most JS errors are due to missing or corrupt files. Your tern.js file could be missing due to accidental deletion, uninstalled as a shared file of another program (shared with Adobe Flash Professional CC), or deleted by a malware infection. Furthermore, tern.js file corruption could be caused from a power outage when loading Adobe Flash Professional CC, system crash while loading or saving tern.js, bad sectors on your storage media (usually your primary hard drive), or malware infection. Thus, it’s critical to make sure your anti-virus is kept up-to-date and scanning regularly.

How to Fix tern.js Errors in 3 Steps (Time to complete: ~5-15 minutes)

If you're encountering one of the error messages above, follow these troubleshooting steps to resolve your tern.js issue. These troubleshooting steps are listed in the recommended order of execution.

To begin System Restore (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. When you see the search box, type "System Restore" and press "ENTER".
3. In the search results, find and click System Restore.
4. Please enter the administrator password (if applicable / prompted).
5. Follow the steps in the System Restore Wizard to choose a relevant restore point.
6. Restore your computer to that backup image.

If the Step 1 fails to resolve the tern.js error, please proceed to the Step 2 below.

You can uninstall Adobe Flash Professional CC software by following these instructions (Windows XP, Vista, 7, 8, and 10):

1. Hit the Windows Start button
2. In the search box, type "Uninstall" and press "ENTER".
3. In the search results, find and click "Add or Remove Programs"
4. Find the entry for Adobe Flash Professional CC (not specified) and click "Uninstall"
5. Follow the prompts for uninstallation.

After the software has been fully uninstalled, restart your PC and reinstall Adobe Flash Professional CC software.

If this Step 2 fails as well, please proceed to the Step 3 below.

Adobe Flash Professional CC (not specified)

Adobe Systems Incorporated

When the first two steps haven't solved your issue, it might be a good idea to run Windows Update. Many tern.js error messages that are encountered can be contributed to an outdated Windows Operating System. To run Windows Update, please follow these easy steps:

1. Hit the Windows Start button
2. In the search box, type "Update" and press "ENTER".
3. In the Windows Update dialog box, click "Check for Updates" (or similar button depending on your Windows version)
4. If updates are available for download, click "Install Updates".
5. After the update is completed, restart your PC.

If Windows Update failed to resolve the tern.js error message, please proceed to next step. Please note that this final step is recommended for advanced PC users only.

If Those Steps Fail: Download and Replace Your tern.js File (Caution: Advanced)

If none of the previous three troubleshooting steps have resolved your issue, you can try a more aggressive approach (Note: Not recommended for amateur PC users) by downloading and replacing your appropriate tern.js file version. We maintain a comprehensive database of 100% malware-free tern.js files for every applicable version of Adobe Flash Professional CC. Please follow the steps below to download and properly replace you file:

1. Locate your Windows operating system version in the list of below "Download tern.js Files".
2. Click the appropriate "Download Now" button and download your Windows file version.
3. Copy this file to the appropriate Adobe Flash Professional CC folder location:
   
   Windows 10: C:\Program Files\Adobe\Adobe Animate CC 2019\Common\Configuration\JSModules\JSCodeModel\tern\lib\
   
4. Restart your computer.

If this final step has failed and you're still encountering the error, you're only remaining option is to do a clean installation of Windows 10.

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