Forum Discussion
MECM MSIX Application Creation Error
Apologies if this needs to go into the MECM forum.
I receive the following error message when trying to import an MSIX into MECM: 'Error: Part URI is not valid per rules defined in the Open Packaging Conventions specification'. The MSIX is for Adobe InDesign 2026. I have successfully created MSIX packages for other Adobe Creative Suite products and imported them into MECM. I have been through the manifest for the InDesign MSIX I created, the file system, the metadata (such as package name) and can see nothing that would trip it up. I have also looked for any path lengths over 255 and found none. The only thing I found which I think may be a problem is in the content_types.xml - a tilda in the application extension entry:
<Default Extension="xml~" ContentType="application/octet-stream" />
As usual, there is not much online. I have skimmed through the OPC specification, but can see nothing about limitations. Have anyone else come across this problem?
4 Replies
Larry,
This sounds unusual.
Microsoft doesn't seem to be reacting to posts here much right now, so if you want to reach out to me offline I can provide another set of eyes. mailto:tmangan@tmurgent.com
Many thanks for your reply Tim. This error has cropped up elsewhere online, but not in the context of MSIX. It looks like I shall have to got through the package (in particular the assets) with a fine-toothed comb and look for special characters in filenames, etc.
Crazylarry Thinking about your error on the plane ride home yesterday.
If the issue is syntax versus schemas in the AppXManifest (for example a protocol handler uses a URI), then an installation error will generate an Event Log entry in the Microsoft\Windows\AppXPackagingOM operational log that will have the detail, including the AppXManifest line number.
