5 Replies
      Latest reply on Aug 12, 2019 11:59 PM by Jooney
      dson8 Level 1 Level 1 (0 points)

        Selecting iPad from the Airplay drop-down or in Sidecar utility in System Preferences causes

        "Unable to Connect to iPad. A miscellaneous error occurred (-402)" to occur.


        iPad Pro running iPadOS 13 beta build 17A5534f.

        Macbook Pro 2018 running macOS Catalina 10.15 build 19A487m.


        Have tried while connected to the Wifi network and also connected via USB C with Wifi turned off on iPad.

        • Re: Sidecar Error -402
          Leslie Xu Level 1 Level 1 (0 points)

          The same problem with macbook pro 2017 (Catalina beta3) and ipad os 13

          • Re: Sidecar Error -402
            lelong37 Level 1 Level 1 (0 points)

            I have the lastest Beta 4's for both macos and ipados, still getting issue, reformatting my iPad now, will keep everyone posted.


            Update: wiped my iPad completely, still same issue. The next thing would be so wipe my Macbook Pro 2018, but really rather not at this very moment with how hetic it is at work at moment.


            Pleas let us know if anyone get's around this issue.

            • Re: Sidecar Error -402
              peignoir Level 1 Level 1 (0 points)

              Hi, having the same issue too (Macbook air (latest) and Ipad pro 9.7', it used to work with previous versions of Ipad OS and Mac OS beta , so I guess this might be a bug, checking the console system.log i see this message everytime I click on connecting to my Ipad Pro


              --> Jul 21 10:42:52 peignoirs-air com.apple.xpc.launchd[1] (com.apple.driverkit.AppleUserHIDEventDriver.dfrv1-(0x10022ef92)): Unknown key for Boolean: _NullBootstrapPort

              • Re: Sidecar Error -402
                Jooney Level 1 Level 1 (0 points)

                I have same issue but didn't fixed this error with any solutions above.