'%3e%3cpath%20d='M8%200C12.4183%200%2016%203.58172%2016%208C16%2012.4183%2012.4183%2016%208%2016C3.58172%2016%200%2012.4183%200%208C0%203.58172%203.58172%200%208%200ZM11.6162%204.38379C11.2257%203.99337%2010.5927%203.99338%2010.2021%204.38379L8%206.58594L5.79785%204.38379C5.40732%203.99334%204.77429%203.99329%204.38379%204.38379C3.99331%204.77429%203.99335%205.40733%204.38379%205.79785L6.58594%208L4.38379%2010.2021C3.99348%2010.5927%203.99341%2011.2257%204.38379%2011.6162C4.77426%2012.0066%205.40734%2012.0065%205.79785%2011.6162L8%209.41406L10.2021%2011.6162C10.5927%2012.0066%2011.2257%2012.0067%2011.6162%2011.6162C12.0067%2011.2257%2012.0066%2010.5927%2011.6162%2010.2021L9.41406%208L11.6162%205.79785C12.0066%205.40735%2012.0066%204.77429%2011.6162%204.38379Z'%20fill='%23080E17'%20fill-opacity='0.46'/%3e%3c/g%3e%3cdefs%3e%3cclipPath%20id='clip0_3761_713'%3e%3crect%20width='16'%20height='16'%20fill='white'/%3e%3c/clipPath%3e%3c/defs%3e%3c/svg%3e)
How to Fix SharePoint DataView.setBigUint64 Is Not a Function Error
Question details
Users need to resolve a JavaScript-related error preventing file uploads and document access in SharePoint.
- Product
- SharePoint / Microsoft 365
- Device & OS
- Mac (Safari)
- Scenario
- Uploading documents or accessing files on a SharePoint site via a web browser.
- Observed behavior
- The browser displays a 'DataView.setBigUint64 is not a function' error, causing the file upload or page rendering to fail.
Verify your internet connection and briefly check if the same error appears when logging into SharePoint using a completely different web browser.
Update Safari or Switch to a Supported Browser
Use this solution because the error is primarily caused by outdated web browsers that lack support for modern JavaScript functions.
The DataView.setBigUint64 error is a standard browser compatibility issue. Older versions of Safari on Mac often lack support for this specific JavaScript method required by modern SharePoint environments.
If you are using a Mac, open 'System Settings' and navigate to 'General' > 'Software Update' to install the latest version of macOS and Safari.
If updating Safari is not an option, download a current version of Microsoft Edge, Google Chrome, or Mozilla Firefox.
Launch the newly installed or updated browser, log into your Microsoft 365 account, and attempt to upload your files to SharePoint again.
Regrant SharePoint User Permissions
Apply this solution if the browser is fully up to date but the error still persists for a specific user.
Create a Service Request in Microsoft 365
If neither browser updates nor permission resets resolve the issue, technical support from Microsoft is required.
Edit and Manage Documents Smoothly with WPS Office
If you frequently encounter web browser compatibility errors like 'DataView.setBigUint64' when managing files online, consider using a reliable desktop solution. WPS Office provides a powerful, lightweight suite for handling all your document needs locally, avoiding browser-based glitches entirely.
Frequently Asked Questions
What exactly does the DataView.setBigUint64 error mean?
It is a JavaScript error that indicates your web browser does not support a specific code function required by SharePoint. This typically happens on outdated browsers that cannot process modern web application scripts.
Can my geographic location cause this SharePoint error?
No, while network restrictions in certain regions can cause login or loading delays, the DataView.setBigUint64 error is strictly a browser compatibility issue, not a network or location problem.
Why does this error only happen on my Mac?
The error is most common on Macs running older versions of Safari, which lack native support for the BigUint64 method. Updating macOS or switching to a browser like Microsoft Edge or Google Chrome will resolve it.
