I've developed an app for iOS and Android. My main computer runs Windows 10 and I've created my project entirely on it. To build to iOS you need to use a Mac, so I bought a cheap one second hand. I installed Unity and Xcode on the Mac. I at first tried copying the project across to the Mac, but this took a long time. Instead, I mounted my main PC as a network location and opened the project remotely from on the Mac. Building for iOS (or rather exporting the Xcode project) gets about halfway done, before it crashes. Looking through the log I find the following error: UnauthorizedAccessException: Access to the path "/Volumes/C/Users/Peter/Documents/Unity/DD Party Status/Temp/StagingArea/Data/Managed/Unity.Analytics.StandardEvents.dll" is denied. Opening this networked location in Finder shows me that Unity.Analytics.StandardEvents.dll, Unity.Analytics.Tracker.dll and UnityEngine.Purchasing.dll are all locked. For some reason Unity is unable to access these files to finish the build. Copying the files to my NAS and trying to build nets the same result. Can someone please help? I'd hate to have to copy the project in its entirety to the Mac every time I need a new build. EDIT: Opening Unity with a sudo command in the terminal gets me a little further. It gives the message "Creating directory. Creating directory Library/ScriptAssemblies failed. Please ensure there is enough disk space and you have permissions setup correctly." There's 60GB of free space, I don't understand permissions well enough to know what to do here.