WordPress

Upgrading the Gang Sheet Plugin by Hand (Zip Upload)

3 min readUpdated 2026-09-16

When you need this

The Download & Upgrade Now button on the Gang Sheet Home tab tries to upgrade the plugin in place. If any of its safety checks fail, the button does not show an error message — your browser simply starts downloading gang-sheet-builder_latest.zip instead. That download is the signal that the in-place upgrade did not complete and you now need to install the file yourself.

You can also get the zip directly at any time:

https://app.buildagangsheet.com/plugins/gang-sheet-builder_latest.zip

Warning

Back up your site before a manual plugin upgrade.

Steps

  1. Download gang-sheet-builder_latest.zip — either from the automatic download the upgrade button started, or from the URL above.
  2. In the WordPress admin sidebar, go to Plugins → Add New Plugin.
  3. Click Upload Plugin at the top of the page.
  4. Click the Choose File field labelled Plugin zip file and select the zip you downloaded.
  5. Click Install Now.
  6. WordPress will see that the plugin already exists and show a comparison screen. Click Replace current with uploaded.
  7. Go back to Gang Sheet and check the Current Version readout in the tab bar. The Products, Orders and Payments tabs should reappear.
Note

Do not deactivate or delete the plugin first. Deactivation removes your stored access token, shop UUID and shop slug and tells Drip Apps to delete the shop record. Uploading over the top keeps all of it.

Why the in-place upgrade stops

The upgrade endpoint runs a sequence of checks and stops at the first one that fails. It returns a short code rather than a sentence, and the WordPress admin screen does not display that code — you will only see it in your browser's developer tools, on the Network tab, in the response to the upgrade request.

CodeWhat it meansWhat to do
download_failedWordPress could not fetch the zip from Drip Apps at all.Usually an outbound firewall, a proxy, or a DNS or TLS problem on your host. Install manually.
not_a_zipSomething came back, but it is not a zip file.Normally a captive portal or a security proxy returning an HTML page. Install manually.
checksum_mismatchThe downloaded file does not match the published SHA-256 checksum.The download was corrupted or altered in transit. Try again; if it repeats, raise a support ticket before installing anything.
zip_inspection_unavailableYour host's PHP does not have the ZipArchive extension, so the plugin cannot inspect the archive before installing it.The plugin deliberately refuses to self-update on these hosts. Always install manually here.
unexpected_archive_pathA file inside the archive pointed somewhere outside the plugin folder.The plugin refused to install it. Raise a support ticket — do not install the file by hand.
unreadable_zipThe archive downloaded but could not be opened.Corrupted download. Try again, then install manually.
stage_failedThe plugin could not copy the zip into its own folder.Directory permissions on wp-content/plugins/gang-sheet-builder. Install manually.
unzip_failedWordPress could not unzip the archive over the existing install.Usually file permissions or the WordPress filesystem method being set to FTP. Install manually.
Pro tip

If you hit zip_inspection_unavailable, the in-place upgrade will never work on that host. Bookmark the zip URL and plan on the manual upload every time.

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