She received the extremely helpful message that the “operation couldn’t be completed” with the error code “ error -9937.” (Is it really too much to ask to have human-readable error codes this many decades into the home-computing revolution?) A Macworld reader found a problem in transferring images from an iPhone with iOS 11 or later installed (she didn’t specify exactly) and macOS 10.12 Sierra or earlier. While many people update all their Apple hardware around the same time, it’s not possible for everyone, such as folks running Macs that don’t meet the latest system requirements. IDGĪn obscure error appears when macOS doesn’t recognize the newer, highly compressed media formats available in iOS since version 11. Earlier versions of Photos and macOS lack support for those two compressed formats. However, using HEIF (High Efficiency Image File Format) and HEVC (High Efficiency Video Coding) becomes a problem if you haven’t installed macOS 10.13 High Sierra or later. The higher compression in new media formats Apple added in iOS 11 can nearly double the amount of photos and video you can store when you take pictures and shoot movies on your iPhone or iPad.

Image capture error 9937