iPhoto in macOS High Sierra 10.13.4

Welche Version von iPhoto hast du installiert? Unter High Sierra benötigst du iPhoto 9.6.1. Eventuell kannst du iPhoto noch aktualisieren (Can't Update iPhoto because it is not available in the AppStore - Apple Community)

Falls nicht, kannst du die iPhoto Mediathek in Fotos für Mac öffnen und in eine Fotosmediathek wandeln:

Notes on Migrating an iPhoto Library from iPhoto to Photos for Mac - Apple Community

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