Dropbox Unable to Upload One or More Files: 8 Fixes Here!

How to fix the Dropbox unable to upload one or more files issue? In this guideline, you can find a satisfying solution from 8 choices according to the situation you met.


by Zoey Lasted Updated March 16, 2023

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Why are my files failing to upload to Dropbox?


Hello, I'm trying to upload a directory to dropbox via the web on a desktop. I get the following pop-up: Unable to upload one or more files. How do I see the full list of files that will be excluded? ‘Learn more’ opens a page with no useful info and skipping these files simply starts the transfer. Presumably many system files are being ignored.

- Question from Dropbox Community

Dropbox Unable to Upload One File

Dropbox may play an important role in your daily life and work. You can perform Dropbox secure upload for your files. However, sometimes you will meet some Dropbox issues like Dropbox unable to upload one file or more files in the use case. But don’t worry, we provide 8 different solutions in the following part.

How to fix Dropbox unable to upload one or more files

When you meet the Dropbox unable to upload error, don’t panic, there are many solutions to such a Dropbox issue and we will introduce them one by one in detail.

Fix 1. Restart your computer and Dropbox

When you meet a Dropbox upload issue like Dropbox upload failed, Dropbox not syncing, etc. the first and direct method is to restart your device or the Dropbox client on your device. This method is useful if your Dropbox is stuck because of a running program.

Fix 2. Check Internet connection

Since Dropbox is an online storage for files, it requires a stable Internet connection to work. Thus, please go to check the Internet connection on your computer. If there is an error with the Internet connection, you can go to Windows Settings to find network troubleshoot to choose Find and fix network problems.

Network Troubleshoot

Fix 3. Update your Dropbox client

If you are using an older version of Dropbox client to upload to Dropbox without local copy, it is more likely to encounter some Dropbox issues. So, please keep your Dropbox client the latest version.

Fix 4. Configure bandwidth settings in Dropbox

In Dropbox settings, you can set up bandwidth, which will influence your upload task. If your met upload issue like Dropbox upload 1 second left, you can configure the bandwidth setting in Dropbox to fix it.

1. Click on your Dropbox desktop client icon and choose Settings icon to select Preferences.

Dropbox Preferences

2. Under the Bandwidth tab, you can choose Don’t limit for both Download rate and Upload rate. Then press OK and there will be no limitation on bandwidth.

Dropbox Bandwidth

Fix 5. Clean up Dropbox cache

If you have used Dropbox for a long period of time, there will be lots of Dropbox cache on your computer, which may effect your upload task. For this, you can clear Dropbox cache regularly to avoid such an issue.

1. Tap Windows and R keys at the same time. Then input %HOMEPATH%\Dropbox\.dropbox.cache, then click OK.

Input the Command

2. Then you will go to the Dropbox cache folder, and choose any cache data to delete them.

Clear All Cache

Fix 6. Upload standard-compliant files

There are some limitations for files that are uploaded to Dropbox. If your Dropbox can't upload file, you can check if your files are standard-compliant in from these aspects:

  • File name: Please check if your filename is more than 260 characters and if there are special symbols and spaces in it.
  • File size: If you are using a Dropbox desktop client, your uploading file can not be larger than 2TB. The maximum file size is 50GB on the Dropbox official website.
  • File type: Check if your files are web-based like Google Docs file. Dropbox does not support such a file type.
  • File status: When you upload files to Dropbox, please do not run it with other programs on your device.

Fix 7. Check available storage in Dropbox

As you know, there is only 2GB of free cloud storage in a free Dropbox account. If there is not sufficient storage in your Dropbox account, you will meet the Dropbox not updating files issue. Please check Dropbox available space.

  • On Dropbox website

The simplest way is to click on your avatar icon. Then you can see the Dropbox storage capacity of your account.

Check Available Space Avatar

  • On the Dropbox desktop client

You can go to Dropbox settings > Preferences > Account to see how much available storage you have in your account.

Dropbox Used Space Desktop App

Fix 8. Adjust proxy settings in Dropbox

Proxy servers may affect your Dropbox uploading task as well. Please go to Dropbox Preferences to choose No proxy next to Proxy settings.

Dropbox Proxies

Tip: Upload files to Dropbox without the “not uploading” issue

Are you tired of all types of Dropbox uploading issues? Maybe you can switch to another way to upload files to Dropbox without any errors. Here, we bring it to you - a free cloud backup service CBackup.

In CBackup, you can try comprehensive backup and sync features. It allows you to upload all kinds of files to a public cloud drive like Dropbox, OneDrive, Google Drive, etc.

There is no limitation on uploading file size and uploading speed so you can create your upload task to Dropbox smoothly.

Let’s see how to upload files to Dropbox via CBackup more easily:

1. Download and install the CBackup desktop application on your computer. Sign up for a CBackup account and log into it on the desktop client.

Download CBackupWin 11/10/8.1/8/7/XP
Secure Download

2. Click the Storage tab. Select Dropbox > Authorize Now. Let CBackup access your Dropbox account safely.

Select Dropbox

3. Choose the Sync tab, and select Sync PC to Public Cloud.

Choose PC to Public Cloud

4. Choose any file to be the source. And click a folder in your Dropbox account as the destination. At last, press the Start Sync button to upload files to Dropbox now.

Sync COmputer to Dropbox

Note: Before you start the Dropbox upload task, you can set up a scheduler for it by clicking on the Settings button.

Sync Scheduler

★Tips: In CBackup, there are more free features that can help you a lot.
Combine cloud storage: You can break the Dropbox storage limit by merging different cloud drive accounts together.
Cloud to cloud sync: Cloud sync is a core feature in CBackup. You can transfer files between different cloud drive accounts directly.

To sum up

When you are told that your Dropbox unable to upload one or more files, this article can solve your problem in detail. To avoid all kinds of Dropbox issues, you can try the free cloud service called CBackup.

Zoey · Editor
Zoey works as an English editor of CBackup. She provides tech information about cloud backup, cloud sync and some other cloud services as well. She hopes that her articles will be greatly helpful for users. She is fond of music, film, and photography.

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