I just downloaded xCode 26.0.1 and installed it overtop of my previous version of xCode (I don't know the version, but it was less than a year old). Everything was working fine with the previous version of xCode, but with v 26.0.1, I am getting the following popup error message when trying to install my app to some of my tethered devices:
"Could not located developer disk image for this device"
This occurs with an iPhone 7 with iOS 14.8 and an iPad Pro (1st gen) with iOS 13.5.1. Again, these devices had no problem launching an app from xCode while tethered prior to the v 26.0.1 install.
I do have the following folders in the \Users\MyName\Library\Developer\xCode\iOS DeviceSupport folder:
12.4.1 (16G102)
12.4.1 (16...2) arm64e
13.5.1 (17F80)
14.4.2 (18D70)
14.6 (18F72)
14.7.1 (18G82)
14.8 (18H17)
15.0.2 (19A404)
15.1 (19B74) arm64e
15.3.1 (19D52)
15.3.1 (19...2) arm64e
16.1 (20B82) arm64e
16.3.1 (20...7) arm64e