QLIK SENSE ERROR: UNSUPPORTED FILE FORMAT ERROR

[Krystian]

Hello,

When I open the app, unsupported file format error appears.

I tried to duplicate the app in QMC console, but I get the same  "unsupported file format error".

[Benoit_C]

Hi @Krystian,

This could mean app is corrupted.

You could check below article about similar issue:
https://community.qlik.com/t5/Official-Support-Articles/Qlik-Sense-Enterprise-on-Windows-scheduled-r...

Regards,
Benoit

[Krystian]

The app file is damaged and cannot be opened by the Qlik Sense Engine.

1. Export the app, and reimport it
   If this works then corruption may be related to document objects that are not part of the main app, such as private sheets or bookmarks.
2. Open the app without data, and save it as an empty app.
   If the empty app can be reloaded, then the corruption may have been related to the data part of the app file.

It doesn't work, I'm unable to reproduce first step due to an error.

I can't open app without data because app is published.

[Benoit_C]

@Krystian what is the error you are having if trying to export the app ?

[Krystian]

The error message is similar to the one I received when I was attempting to duplicate the app.

[Benoit_C]

@Krystian right after having tried to export the app, what do you find the in trace system engine log (C:\ProgramData\Qlik\Sense\Log\Engine\Trace\SERVERNAME_System_Engine) ?

 

[Krystian]

There's two logs:

QF: Found block corruption in file dd0f86b7-fcff-4b04-a253-4db3bceb01af c0de279d-21cb-5e1f-377b-2db22714ac3c

ServerPlugin: ExecutePluginCompositeFunc file IO exception [invalidFile].

[Benoit_C · Accepted solution]

@Krystian unfortunately that means the app is corrupted.

It would be needed to restore a backup of the app.