Forge Viewer v7中VisualClusters扩展无代码改动却突然失效的问题咨询

Hey there, let's break down this sudden issue you're facing—since you didn't touch any code and it worked fine with Revit files before, this is likely tied to Viewer version changes or caching quirks. Here's what to check:

• First, spot the typo in the error
  Look closely at the error message: createObjctAnimStates is missing an e (it should be createObjectAnimStates). This suggests either a temporary bug in a recent Viewer subversion, or a corrupted/cached script file loading incorrectly.

• Lock your Forge Viewer v7 version
  If you're using the default CDN link without a specific subversion, it might have auto-updated to a problematic build. Switch to a fixed, stable v7 version you know worked before. For example:

  <script src="https://developer.api.autodesk.com/modelderivative/v2/viewers/7.76.0/viewer3D.min.js"></script>
  

  You can pick any v7 version that was functional for your setup—avoid relying on the unversioned "latest" link for production.

• Clear browser and CDN cache
  Browsers often cache old Viewer scripts, which might hold the broken version. Force a hard refresh (Ctrl+Shift+R on Windows, Cmd+Shift+R on Mac) or clear your browser cache entirely. If it's a CDN cache issue, add a cache-busting parameter to your script URL like ?v=20240520 to force a fresh load.

• Verify VisualClusters extension compatibility
  Even if you didn't modify your code, Viewer subversion updates can tweak internal APIs. If VisualClusters is a third-party or maintained extension, grab the latest version that's confirmed to work with your locked Viewer build. If you have access to the extension's code, double-check how it's calling that animation function to ensure it aligns with the Viewer's current API.

• Roll back to a known-good Viewer version
  If locking a recent stable version doesn't work, revert to the exact Viewer v7 version you used when you first deployed the extension. This will quickly confirm if the issue stems from an unexpected update to the Viewer library.

Pro tip: That typo in the error (Objct instead of Object) is a dead giveaway that this is probably a transient bug in a specific Viewer build. Locking a stable version is almost always the fastest fix here.

内容的提问来源于stack exchange，提问作者Aleksandar