How to Fix "We could not complete your purchase” error on Mac?

by Alice Woods - -

Question

Issue: How to Fix "We could not complete your purchase” error on Mac?

I cannot download apps from the Mac App Store. It gave me “We could not complete your purchase.” I tried to purchase different applications, but the error still shows up. What can I do about it?

Solved Answer

“We could not complete your purchase” is one of Mac App Store[1] errors that have been bothering Mac OS users since 2017. At the time, the error seemed to be bound to the macOS Catalina and stem due to iCloud account problems on Mac App Store. 

Nevertheless, the need for We could not complete your purchase error fixes resurfaced in 2020 when Mac users started actively updating from Catalina 10.15 to Mojave 10.14[2]. According to reports, people cannot finish their purchases on the App Store as the mentioned error occurs at the final stage and indicates that the process is canceled. In most of the reports, people claim that they are not able to download updates for apps that are already installed on the system. 

The problem related to We could not complete your purchase error is currently under investigation. However, there might be several issues that cause the error, such as:

  • problems with the Internet connection;
  • issues with Wi-Fi router;
  • incorrect DNS settings;
  • unverified Apple ID;
  • installation of apps that are not signed by Apple;
  • problems with a cache.

We could not complete your purchase error pop-ups

If one of these problems occur, the Mac App Store delivers a pop-up message saying:

We could not complete your purchase.
Unknown Error.

or

We could not complete your purchase. Canceled.

However, the second line of the error message might also warn about other issues, for instance:

  • A server with the specified hostname could not be found.
  • The product distribution file could not be verified. It might be damaged or was not signed.
  • [Application name] is already installed on this Mac.
  • [Application name] cannot be installed on this computer.
  • Failed to verify the preflight file. It is not signed by Apple.

Fortunately, like the majority of Mac App Store errors, this one can be fixed as well. There are several ways how you can fix “We could not complete your purchase” Mac error starting from connecting to the different Wi-Fi and finishing with changing your Apple ID password.

Fix "We could not complete your purchase” error on Mac

Methods that can help to fix “We could not complete your purchase” error on Mac

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.

We want to point out that not all of these methods can solve the error. As you already know the error might be triggered by numerous reasons. Thus, there are tons of ways to solve them. However, if you found another method that helped you, let us know!

Method 1. Solve issues related to the Internet connection

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.

Connectivity problems often trigger app Store errors. Thus, you have to make sure that your connection works properly. If you use Wi-Fi, try to connect using a cable and vice versa. Additionally, if you can, you should try to connect to a different Wi-Fi network.

Sometimes there might be some router problems.[3] Thus, checking if the “We could not complete your purchase” error show ups when you connect to a different network helps to figure it out.

Additionally, some users reported that changing DNS settings[4] also helped to solve the error.

Method 2. Reset your Apple ID password

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.

Change Apple ID password to fix "We could not complete your purchase” error on Mac

  1. Sign in to your Apple ID account page
  2. Go to the Security section.
  3. Click Change Password option.
  4. Enter your current password and a new one.
  5. Confirm changes by clicking the Change Password button.
  6. Restart your Mac.
  7. Sign in with a new password and try to download necessary apps from the App Store to check if it helped to solve “We could not complete your purchase” error.

If this did not help, you should follow the additional steps:

  1. Open Finder.
  2. From the Finder menu bar click Go and choose Go to Folder.
  3. Enter this path: ~/Library/Cookies
    Reset "We could not complete your purchase” error on Mac

  4. Click Go.
  5. Move these files to the Trash:
    com.apple.appstore.plist
    Cookies.plist
  6. Restart the Mac and try to download the app again.

Method 3. Verify the Apple ID in Use is the Same in iTunes and App Store

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.
  1. Make sure that you are logged in with the same Apple ID account in both Mac App Store and iTunes.
  2. Quit iTunes and Mac App Store.
  3. Open App Store again and check if “We could not complete your purchase” error is gone.

Method 4. Accept iTunes Terms and Conditions

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.

Apple Terms and Conditions

No matter how strange it might seem, but you may not have agreed with iTunes Terms and Conditions.[5] Therefore, you should check if you have actually accepted it. It’s especially important if Apple updated them recently:

  1. Open iTunes (however, if you have updated it, you should first quit and then relaunch it).
  2. Accept new Terms and Conditions (you should read them as well).
  3. Quit iTunes.
  4. Launch iTunes again and check if it helped to fix “We could not complete your purchase” error.

Method 5. Delete Cache associated with Mac App Store

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.

Delete cache associated with Mac App Store

  1. If the Mac App Store is opened, quit it.
  2. Open the Finder.
  3. From the Finder, menu click Go and choose Go to Folder option.
  4. Enter this address:
    ~/Library/Caches/com.apple.appstore/Cache.db
  5. Click Go.
  6. Move Cache.db file to the Trash.
  7. Open the App Store and try to purchase the application. Hopefully, the “We could not complete your purchase” error will no longer appear.

Method 6. Remove content from the cache directories

Fix it now! Fix it now!
To repair damaged system, you have to purchase the licensed version of Intego Intego.

Note: removing the content from the /var/folders and /private/var/folders can't harm the device because these locations are used for storing per-user temporary files and caches only. 

Fix We could not complete your purchase error

  1. Open the terminal and run the following command in it:
sudo rm -fr /var/folders/**
sudo rm -fr /private/var/folders/**

Repair your Errors automatically

ugetfix.com team is trying to do its best to help users find the best solutions for eliminating their errors. If you don't want to struggle with manual repair techniques, please use the automatic software. All recommended products have been tested and approved by our professionals. Tools that you can use to fix your error are listed bellow:

Offer
do it now!
Download Fix
  Happiness
Guarantee
Compatible with Microsoft Windows Compatible with OS X
Still having problems?
If you failed to fix your error using , reach our support team for help. Please, let us know all details that you think we should know about your problem.
- a patented specialized Windows repair program. It will diagnose your damaged PC. It will scan all System Files, DLLs and Registry Keys that have been damaged by security threats. - a patented specialized Mac OS X repair program. It will diagnose your damaged computer. It will scan all System Files and Registry Keys that have been damaged by security threats.
This patented repair process uses a database of 25 million components that can replace any damaged or missing file on user's computer.
To repair damaged system, you have to purchase the licensed version of malware removal tool.

Prevent websites, ISP, and other parties from tracking you

Private Internet Access is a VPN that can prevent your Internet Service Provider, the government, and third-parties from tracking your online and allow you to stay completely anonymous. The software provides dedicated servers for torrenting and streaming, ensuring optimal performance and not slowing you down. You can also bypass geo-restrictions and view such services as Netflix, BBC, Disney+, and other popular streaming services without limitations, regardless of where you are.

A VPN is also crucial when it comes to user privacy. Online trackers such as cookies can not only be used by social media platforms and other websites but also your Internet Service Provider and the government. Even if you apply the most secure settings via your web browser, you can still be tracked via apps that you are connected to the internet. Besides, privacy-focused browsers like Tor is are not an optimal choice due to diminished connection speed.

Therefore, to stay completely anonymous and prevent the ISP and the government from spying on you, you should employ Private Internet Access VPN. It will allow you to connect to the internet while being completely anonymous, prevent trackers, ads, as well as malicious content. Most importantly, you will prevent the illegal surveillance activities that NSA and other governmental institutions are performing behind your back.

 

Recover your lost files quickly

Unforeseen circumstances can happen at any time while using the computer: it can turn off due to a power cut, a Blue Screen of Death (BSoD) can occur, or random Windows updates can decide to reboot the machine when you went away for a few minutes. As a result, your schoolwork, important documents, and other data might be lost.

Additionally, you might also be attacked by malware that can corrupt your Windows or encrypt files with a robust encryption algorithm, and ask for a ransom in Bitcoin for the decryption tool. Cybercriminals might not deliver what they promised, however, so it is better to attempt alternative file recovery methods that could help you to retrieve at least some portion of the lost data.

Data recovery software is one of the options that could help you recover your files. Once you delete a file, it does not vanish into thin air – it remains on your system as long as no new data is written on top of it. Data Recovery Pro is recovery software that searchers for working copies of deleted files within your hard drive. By using the tool, you can prevent loss of valuable documents, school work, personal pictures, and other crucial files.

About the author

Alice Woods
Alice Woods - Shares the knowledge about computer protection

Alice Woods is a security expert who specializes in cyber threat investigation and analysis. Her mission on Ugetfix - to share the knowledge and help users to protect their computers from malicious programs.

Contact Alice Woods
About the company Esolutions

References

Read in other languages

What you can add more about the problem: "How to Fix "We could not complete your purchase” error on Mac?"