PCJ-Error of Impossible to access components of the import zip file after decompressing it. Please verify it has not been altered since it was exported from the source JIRA.

Problem

When running an import on the target instance an error similar to below is displayed.

Impossible to access components of the import zip file after decompressing it. Please verify it has not been altered since it was exported from the source JIRA.

Solution

This error is often caused when the original zip file that was generated from the source instnace has been extracted and manually modified but not re packaged up again in the correct structure. 

In order to work around this error you should check the Zip file and ensure that is packaged up to use the structure shown below before re trying to run an import. 


Zip File Structure:
<FileName>.zip
├── config.xml
└── data
    ├── attachments
    │   └── PROJECT_KEYS...
    └── data.zip
        ├── activeobjects.xml
        └── entities.xml