UXP Plugin Premiere Pro – “Host Application specified is not available” Error, Plugin Load Failed

[Abbonamenti_Stufara9226]

Hi everyone,

I’m developing a UXP plugin for Premiere Pro, but when I load it using UXP Developer Tool, I get the error:

Plugin Load Failed. Host Application specified is not available. Make sure the host application is started.

Details:

• Manifest "host" entry is set to "app": "PremierePro" 

• Premiere Pro is open and running when I load the plugin

• Tried restarting both Premiere and UXP Developer Tool multiple times

• Uninstalled and Installed Premiere Pro and UXP multiple times and rebooting the sistem

• Verified Premiere Pro version meets minimum version in manifest

• Plugin does not load or show up inside Premiere

• Works with Photoshop and InDesign
• My device is an Macbook M4 14" with Silicon CPU

Questions:

• Is there a known issue with UXP and Premiere Pro for plugin loading?

• Are there special steps to “connect” UXP Developer Tool to Premiere Pro?

• Could it be a manifest config or permissions issue?

• Any debugging tips to fix the “host not available” error?

Thanks in advance!

[Bruce Bullis]

Currently, only Premiere Pro Beta builds support UXP plugins.