i has the error when import files, how solves ?2019-12-27 09:34:05.110894+0800 Happy3D[357:24297] *** Assertion failure in -[UIApplication _applicationOpenURLAction:payload:origin:], /BuildRoot/Library/Caches/com.apple.xbs/Sources/UIKitCore/UIKit-3698.140/UIApplication.m:68572019-12-27 09:34:05.150198+0800 Happy3D[357:24297] invalid mode 'kCFRunLoopCommonModes' provided to CFRunLoopRunSpecific - break on _CFRunLoopError_RunCalledWithInvalidMode to debug. This message will only appear once per execution.libc++abi.dylib: terminate_handler unexpectedly threw an exceptionmy inffo.list <key>CFBundleDocumentTypes</key> <array> <dict> <key>CFBundleTypeIconFiles</key> <array> </array> <key>CFBundleTypeRole</key> <string>Editor</string> <key>LSHandlerRank</key> <string>Owner</string> <key>CFBundleTypeName</key> <string>stl file</string> <key>LSItemContentTypes</key> <array> <string>public.standard-tesselated-geometry-format</string> </array> </dict> </array>my xcode is 11.3,my pad ios is 12.4.4