LibreOffice plugin installation fails on macOS Apple Silicon – unopkg failed to install

emilie_quere · 2026-11-04T15:07:22+00:00

Hello,

I'm unable to install the Zotero LibreOffice plugin on my Mac.

System configuration:
macOS 15.6.1
Apple Silicon (ARM64)
Zotero 10.0.7
LibreOffice 26.8.2.2 (AARCH64)
Eclipse Temurin JDK 21.0.13 (ARM64), selected in LibreOffice's Java settings

Error message:
unopkg at /Applications/LibreOffice.app/Contents/MacOS/unopkg failed to install

The installation fails both through Zotero's Preferences → Cite → Word Processors → Install LibreOffice Add-in and, previously, through manual installation.

Java is enabled in LibreOffice, and Temurin 21 is selected as the Java runtime. Switching to Temurin did not resolve the issue.

Zotero Report ID: 1691640291

Could you help identify the cause of this installation failure?
Thank you !!

adomasven · 2026-11-04T15:30:23+00:00

What is the error message you see when attempting to Manually Install the Zotero LibreOffice plugin? Do you have other newer JDKs installed? Does it work if you remove them from your computer?

tapiam · 2026-11-09T17:29:13+00:00

Hello,
I'm experiencing a similar issue, I have a newer JDK (Oracle Corporation 27.0.1.0.3), though

This is the error message when attempting to manually install Zotero plugin by double-clicking the Zotero_OpenOffice_Integration.oxt file in finder:

(com.sun.star.uno.RuntimeException) { { Message = "C++ code threw N10jfw_plugin25MalformedVersionExceptionE: std::exception", Context = (com.sun.star.uno.XInterface) @0 } }

adomasven · 2026-11-10T08:17:28+00:00

This is a bug in LibreOffice, to be fixed in 26.8.4. You can work around it by temporarily installing an older version of JDK that does't have a 5-segment version number.