Solved: App Sync Error Message Troubleshooting

djnguyen · 07-10-2024 07:18 AM

Lately on my AppSheet - I've experienced this error message notification... anyone know what's wrong and how I can troubleshoot it?

Operation: App sync

Message: Error: Data table 'Email List' is not accessible due to: The HTTP/2 server sent invalid data on the connection. HTTP/2 error code 'PROTOCOL_ERROR' (0x1). (HttpProtocolError).

The Data Table "Email List" is a sheet on the same data source as everything else (one giant Google Sheet).

Thanks!

mohssin365

To troubleshoot the "HTTP/2 server sent invalid data on the connection" error message in AppSheet, start by checking the accessibility of your Google Sheet named "Email List." Ensure that this sheet is not restricted by permissions that could prevent AppSheet from accessing it. Open the Google Sheet directly in your browser to confirm that it loads correctly and check for any issues or notifications within Google Sheets that might indicate a problem.

Next, verify the data source configuration in AppSheet. Go to the AppSheet Editor, navigate to **Data** > **Tables**, and select the "Email List" table. Ensure that the connection settings and the URL to the Google Sheet are correct. Additionally, check if your Google Sheet is within the size limits recommended by Google, as large sheets can sometimes cause issues. If necessary, consider breaking up a large sheet into smaller, more manageable sheets.

Perform a manual sync in AppSheet to see if the error persists. Go to the AppSheet app and trigger a sync, monitoring the process for any additional error messages or details. Clearing your browser cache and cookies can also help, as cached data can sometimes cause unexpected errors. After clearing the cache, try accessing and syncing the AppSheet app again. Finally, ensure that your AppSheet app is up to date, as issues are often resolved in newer versions of the platform. By following these steps, you can identify and resolve the issue causing the "HTTP/2 server sent invalid data on the connection" error, ensuring that your AppSheet app syncs correctly with the "Email List" Google Sheet.

View solution in original post

mohssin365

To troubleshoot the "HTTP/2 server sent invalid data on the connection" error message in AppSheet, start by checking the accessibility of your Google Sheet named "Email List." Ensure that this sheet is not restricted by permissions that could prevent AppSheet from accessing it. Open the Google Sheet directly in your browser to confirm that it loads correctly and check for any issues or notifications within Google Sheets that might indicate a problem.

Next, verify the data source configuration in AppSheet. Go to the AppSheet Editor, navigate to **Data** > **Tables**, and select the "Email List" table. Ensure that the connection settings and the URL to the Google Sheet are correct. Additionally, check if your Google Sheet is within the size limits recommended by Google, as large sheets can sometimes cause issues. If necessary, consider breaking up a large sheet into smaller, more manageable sheets.

Perform a manual sync in AppSheet to see if the error persists. Go to the AppSheet app and trigger a sync, monitoring the process for any additional error messages or details. Clearing your browser cache and cookies can also help, as cached data can sometimes cause unexpected errors. After clearing the cache, try accessing and syncing the AppSheet app again. Finally, ensure that your AppSheet app is up to date, as issues are often resolved in newer versions of the platform. By following these steps, you can identify and resolve the issue causing the "HTTP/2 server sent invalid data on the connection" error, ensuring that your AppSheet app syncs correctly with the "Email List" Google Sheet.