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PostPosted: Thu Jul 08, 2021 11:55 am 
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Joined: Tue Feb 24, 2015 11:54 am
Posts: 32
Error message: EPNGHeaderNotPresent - This operation is not valid because the current image contains no valid header.

This is a known issue with version 7.2.4. A fix will become ready for next patch 7.2.5 in a few weeks.

This crash with "EPNGHeaderNotPresent" message happens only with image files in PNG format defined for the user logo or for a client logo. Follow the temporary fix below and then reimport the logo in JPG or BMP format.

Temporary fix for user logo:

- Close PVsyst first (otherwise it will rewrite PVsyst.ini file)
- Press the Windows key + R simultaneously, type: %LocalAppData%\PVsyst\7.2\Admin in the "Open:" box and press OK
- Open the file named "PVsyst.ini" with a text editor (we advise to use Notepad++ that is free and opensource)
- Find the line "[User]", in this group, find and erase the line starting with "Logo="
- Save the edited PVsyst.ini file

Temporary fix for client logo:

- Go to your workspace in the subfolder \ComposPV\Clients
- Find the client .CLT file that contains a .PNG defined as logo
- Erase the line starting with "Logo="
- Save the edited .CLT file


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