subject: Resolving "dynazip Unzip Error: Zip File Structure Invalid.. Zip File Error [print this page] Zip file error messages are no surprise for those who are well acquainted with this format. But, there is one error message that may occur when a report is opening in the DrillDown Viewer just after the generation of the report. Owing to this error, the zip file does not open. In such a case, the files stored in the Zipped folder become inaccessible, which may cause severe loss to your work area. In order to access your data, you require a valid data backup file. However, if the backup is not available, or it fails to restore the data, then you should opt for a powerful zip repair application to retrieve your data.
For instance You may encounter below mentioned error message while trying to open a .zip file:
"Dynazip unzip error: zip file structure invalid (problem reading zip file)."
This error message occurs while a report is opening in the DrillDown Viewer. After this error message, you fail to open the .zip file. Consequently, the data stored in the .zip becomes inaccessible.
Cause:
Possible causes for the above mentioned error messages are:
The error message occurs if the catalog for report is corrupt.
Another reason for the occurrence of the error message could be corruption of the .zip file, which occurs due to virus infection, unexpected system shutdown, power failure, application malfunction, etc.
Resolution:
There are two causes for the error message, so there has to be a separate solution for each of them. Thus, consider the following measures to solve the problem:
In case the catalog for the report is corrupt, you need to create a new catalog. To do so, follow the steps below:
1.Select New in the File menu and click Catalog.
2.Select the Row, Format, Columns Layout, and the Reporting tree used in the previous catalog.
3.Generate the report again. This should solve the issue. After this, make sure that all options in the new catalog match the settings of the old one. After this, save the new catalog and delete the old one.
But, if this does not work, then the problem may be caused by corruption of the .zip file. In such situations, you need to repair zip file using an advanced third-party zip recovery application. These are reliable tools that repair and restore the corrupted .zip file completely via high-end scanning mechanisms. Embedded with interactive graphical user interface, these applications are easy to use and understand.
