Migrating from Confluence Cloud to Server :: Import Fails

[Mika Nuotio]

We are trying to migrate from Confluence Cloud to Confluence server.

I created a backup file from Confluence Cloud.

When I install Confluence Server and attempt to import the Confluence Cloud generated backup file, I get the following error message:

"Import failed. Check your server logs for more information. Error unzipping file: invalid stored block lengths"

I am using Confluence Server 6.12.2 (64-bit) and PostgreSQL 11.

The size of the Confluence Cloud generated backup zip file is 48MB.

Help is appreciated.

[Mika Nuotio · Accepted solution]

Tobias and Ram,

Thank you both for your kind support.

It turns out that my backup ZIP file was corrupted as Ram suggested. I created a new backup ZIP file and the import worked without problems.

This issue  has been resolved.

[Tobias Anstett _K15t_]

Hi @Mika Nuotio,

I recently had the same issue. In my case the problem was the browser I used. Firefox and Safari did not work.

Eventually Chrome did the job :)

Best, Tobias

[Rambabu Patina _Appfire_]

Hi @Mika Nuotio,

Please check the file ownership, it may cause the issue.
And also can you try unzipping the file manually to see what errors happen on a command line.

Thanks,
Ram.