After upgrading MacOS to High Sierra, I tried to update Xcode and get this:

Download macOS Sierra For the strongest security and latest features, find out whether you can upgrade to macOS Mojave, the latest version of the Mac operating system. If you still need macOS Sierra, use this App Store link: Get macOS Sierra. Sep 26, 2016 - macOS Sierra Upgrade Shows “An Error Has Occurred” Or “Failed to. Have to delete the existing macOS Sierra installer and re-download it. Download the macOS Sierra installer. Launch the App Store app, then look for macOS Sierra in the store. (Here’s a link.) Click on the Download button, and your Mac will download the installer to.

Xcode failed to download. Use the Purchases page to try again

I uninstalled Xcode and try to install again with no success.

I read some tips to solve this but nothing helps...

1. Remove ~/Library/Cookies/com.apple.appstore.plist (no such file)

2. Use AppStore Debug menu... (menu never appears with the command to enable it)

   defaults write com.apple.appstore ShowDebugMenu -bool true

3. Remove contents of /private/var/folders///C/com.apple.appstore (folder located, contents removed, nothing changes)

4. 'wiping all caches, cookies amd such like' (how to do that?)
5. Reset AppStore (uh?)
6. LogOut, quit, restart Mac (done, no changes)
7. Quit AppStore process and try again (done, no changes)
8. Review payment options (done, no changes)

Yes, the drive has enough space

Macos Sierra Failed To Download Use The Purchases Page

1 Answer

Macos High Sierra Download

I had the same issue and finally got this working, however I'm not sure exactly which step made it work, so I'm posting all of them.

From https://apple.stackexchange.com/questions/245406/how-to-fix-reset-app-store-app-on-mac-osx-el-capitan:

Delete:

I didn't have some of those folders, but I did have a couple of extras that looked fishy, so I deleted them too:

Run sudo softwareupdate --clear-catalog[Note: I did this but I don't think it helped]

From http://osxdaily.com/2016/10/08/mac-app-store-temp-cache-folder/ (paraphrasing):

1. Quit out of the Mac App Store
2. Open Terminal and run open $TMPDIR../C/com.apple.appstore/
3. Hit Return and the com.apple.appstore folder will open in the Finder of Mac OS
4. Delete the contents of this folder

And finally:

Mac Os Sierra Failed To Download Use The Purchases Page

5. Navigate to ~/Applications in Finder and move Xcode to the Trash [Note: This step was necessary for me, but ymmv]
6. Reboot
7. Launch App Store. Search for Xcode. Install it fresh.

Mac Os Sierra Failed To Download Recovery Mode

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