[JavaScript Warning: "unreachable code after return statement" {file: "resource://zotero/loader.jsm -> resource://zotero/bluebird/util.js" line: 201 column: 4 source: " eval(obj);

[JavaScript Error: "this is undefined" {file: "resource://gre/modules/osfile/osfile_shared_allthreads.jsm" line: 1262}]

[JavaScript Error: "Win error 32 during operation remove on file C:\Users\[…]\Zotero\storage\AI6NDBPP\AI6NDBPP.pdf (Der Prozess kann nicht auf die Datei zugreifen, da sie von einem anderen Prozess ver

I wish someone with a bit more JavaScript knowledge would post a hack to allow, e.g., the merge button to be repeatedly pushed until it can't be again.

[JavaScript Error: "The operation couldn't be completed. (OSStatus error -1728.) @[setTextRaw:field.m:436]" {file: "file:///Applications/Zotero.app/Contents/Resources/extensions/zoteroMacWordIntegrati

[JavaScript Error: "Zotero.Proxies.proxies is undefined

Here's a script you can run from Tools → Developer → Run JavaScript to add the tag "_missing file" to any attachments in My Library with a missing file. You can then click in the items list and do a S

JavaScript Error: "TypeError: style is null" {file: "chrome://zotero/content/containers/tagSelectorContainer.js" line: 605}]

Javascript Error : "zoteroAttachment.toJSON is not a function" (file: "chrome://zotero/content/xpcom/utilities_internal.js" line 869)

[JavaScript Error: "Unix error 13 during operation open on file /Users/[…]/Zotero/tmp/83TY2698.zip (Permission denied)" {file: "(unknown module)" line: 0}]

assigning numeric keys "with javascript" isn't a solution unless you have a reliable source for unique numbers. The assignment is not the difficult part.

Thanks for the response and help! It sounds like the best solution at this point will be to assign a numeric ID using javascript.

Can you go to Tools → Developer → Run JavaScript, paste this in, run it, and let me know the result?

[JavaScript Error: "Zotero.Proxies.proxies is undefined

In Zotero, click Tools -> Developer -> Run Javascript, paste the code there, check the "Run as async function" box, and click Run. Before doing this, be sure to make a backup of your database just in

Services.appinfo in Tools → Developer → Run JavaScript in Zotero? If there's nothing promising-looking in there, is there a file we can check — e.g., return await Zotero.File.getContents('/path/t

[JavaScript Error: "titlesubfields is undefined" {file: "chrome://zotero/content/xpcom/translation/translate_firefox.js line 425 > eval" line: 578}]

I get javascript error - "frame not found or missing host permission". Pls help!

The JavaScript solution sounds like it would work! I figured there was a way to do that. I will see if I can figure it out on my own in the next few days (it seems like it should be fairly straightfor

It would be pretty easy to run some JavaScript to add a numeric id to the Extra field of all selected items in Zotero. We could help with that if you want. You could also do it via the Zotero API usin