Boolean Custom.Software.QUpgradeHelper.CanUpgrade() – Air Photos Install Failed

Posted on May 28, 2020 by Webmaster

When trying to install the Air Photos, you may get this error:

Quickmap Air Photos Install Failed

Method not found: ‘Boolean
Custom.Software.QUpgradeHelper.CanUpgrade()’.

This occurs when there is a difference in version (or date) between the QUpgrade.dll and the QExpansionSetup.exe (or V8_ExpansionSetup.exe).

To fix this, download a copy of the fixed Air Photo installer here:

http://downloads.quickmap.co.nz/URLDownloadHost/downloads/Qmap_Photo_Install

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