This guide describes how to use Pair to Mac to connect Visual Studio 2019to a Mac build host. The same instructions apply to Visual Studio 2017.
Browse to any website on your iPhone or iPad in Safari. Keep the page open on your device. Open Safari on your Mac. While your iPhone or iPad is still plugged into your computer, go to Develop menu and find your device then choose the website page you want to debug. There's no doubt iOS development is hot right now, with all the iPhone 8/iPhone X hoopla, the new iOS 11 recently shipping with cutting-edge features and so on. But there's that pesky Mac thing. Apple requires that you have a Mac machine for a full development cycle that includes deploying an app to the App.
Overview
Building native iOS applications requires access to Apple's build tools,which only run on a Mac. Because of this, Visual Studio 2019 must connect toa network-accessible Mac to build Xamarin.iOS applications.
Visual Studio 2019's Pair to Mac feature discovers, connects to,authenticates with, and remembers Mac build hosts so that Windows-basediOS developers can work productively. https://renewkorean662.weebly.com/blog/ipad-to-mac-file-transfer-app.
Pair to Mac enables the following development workflow:
Note
Before following the instructions in this guide, complete the following steps:
If you would prefer not to install Visual Studio for Mac, Visual Studio 2019can automatically configure the Mac build host with Xamarin.iOS and Mono.You must still install and run Xcode.For more information, see Automatic Mac provisioning.
Enable remote login on the Mac
To set up the Mac build host, first enable remote login:
Connect to the Mac from Visual Studio 2019
Now that remote login is enabled, connect Visual Studio 2019 to the Mac.
If you have successfully paired to a Mac build host, you are ready to buildXamarin.iOS apps in Visual Studio 2019. Take a look at theIntroduction to Xamarin.iOS for Visual Studioguide.
If you have not been able to pair a Mac, try manually adding aMac or take a look at the troubleshootingguide.
Manually add a Mac
If you do not see a particular Mac listed in the Pair to Mac dialog,add it manually:
Automatic Mac provisioning
Starting with Visual Studio 2019 version 15.6,Pair to Mac automatically provisions a Mac with software necessary forbuilding Xamarin.iOS applications: Mono, Xamarin.iOS (the softwareframework, not the Visual Studio for Mac IDE), and various Xcode-relatedtools (but not Xcode itself).
Important
Pair to Mac performs necessary software installations/updates when VisualStudio 2019 is connecting to theMac.
Mono
Pair to Mac will check to make sure that Mono is installed. If it is notinstalled, Pair to Mac will download and install the latest stable versionof Mono on the Mac.
Progress is indicated by various prompts, as shown by the followingscreenshots (click to zoom):
Xamarin.iOS
Pair to Mac upgrades Xamarin.iOS on the Mac to match the versioninstalled on the Windows machine.
Important
Pair to Mac will not downgrade Xamarin.iOS on the Mac from alpha/betato stable. If you have Visual Studio for Mac installed, set yourrelease channel asfollows:
Progress is indicated by various prompts, as shown by the followingscreenshots (click to zoom):
Xcode tools and license
Pair to Mac will also check to determine whether Xcode has been installedand its license accepted. While Pair to Mac does not install Xcode, itdoes prompt for license acceptance, as shown in the following screenshots(click to zoom):
Additionally, Pair to Mac will install or update various packagesdistributed with Xcode. For example:
The installation of these packages happens quickly and without a prompt.
Note
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These tools are distinct from the Xcode Command Line Tools, whichas of macOS 10.9 areinstalled with Xcode.
Troubleshooting automatic Mac provisioning
If you encounter any trouble using automatic Mac provisioning, take a lookat the Visual Studio 2019 IDE logs, stored in%LOCALAPPDATA%XamarinLogs16.0. These logs may contain error messagesto help you better diagnose the failure or get support.
Build iOS apps from the Windows command-line
Pair to Mac supports building Xamarin.iOS applications from the commandline. For example:
The parameters passed to
msbuild in the above example are:
Note
Visual Studio 2019 stores
msbuild in the following directory:C:Program Files (x86)Microsoft Visual Studio2019<Version>MSBuildCurrentBin
The first time Pair to Mac logs in to a particular Mac build host fromeither Visual Studio 2019 or the command-line, it sets up SSH keys. With thesekeys, future logins will not require a username or password. Newlycreated keys are stored in %LOCALAPPDATA%XamarinMonoTouch.
If the
ServerPassword parameter is omitted from a command-line buildinvocation, Pair to Mac attempts to log in to the Mac build hostusing the saved SSH keys.
Summary
This article described how to use Pair to Mac to connect Visual Studio 2019 to aMac build host, enabling Visual Studio 2019 developers to build native iOSapplications with Xamarin.iOS.
Next stepsIf you can't access the administration page
Profile Manager's basic setup is in Server app. You must use Safari to access Profile Manager's /mydevices webpage and the administration webpage.
Only server administrators can access your administration page. The URL format for your administration page is:
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To enroll an iPhone, iPad, iPod touch, or a Mac, go to:
If you can't access the administration page with a web browser other than Safari, try with Safari. If you can't access it with Safari, try the following troubleshooting steps.
Check your DNS server
DNS settings are important when you're managing a Profile Manager deployment. If Profile Manager doesn't open, make sure your server points to a reliable DNS server.
If you can't push profiles or apps to clients
If you experience issues when you push profiles or apps to client systems, check the system log file in Console. If it reports that your server can't reach Apple's APNs servers, check your network's configuration. Make sure that all needed ports are open.
For more information, turn on APNS debug logging with these Terminal commands:
You can find the log file at /Library/Logs/apsd.log.
After your APNS transactions are logged, use these Terminal commands to turn off debug logging:
If you get other issues with Profile Manager
Profile Manager logs can help you fix issues with Profile Manager. You can find a symbolic link named 'devicemgr' at /var/log. This file points to /Library/Logs/ProfileManager, where you can find these logs:
These logs can also provide helpful information:
In macOS Sierra and later, some information is stored via Unified logging. The following terminal command can provide you with some additional helpful information:
About transaction 'failures'
Some of these logs might list transaction 'failures' or retries. Most of these entries are expected and don't indicate an issue. These logged events are conflicts between attempts to modify the underlying PostgreSQL database at the same time. These kinds of failures retry until they succeed.
You can identify transaction conflicts when you see any of these notes in your log files:
Use verbose logging to find more info
More information on how to fix an issue is sometimes available if you increase the log level. To gather the information you need, reproduce the issue after you increase the logging level.
When you're finished, revert to the original logging level. If you leave the logging level at a higher setting, it decreases the available space on your startup drive.
Turn on verbose logging
To increase the level of logging, use this Terminal command:
This automatically restarts Profile Manager Service.
Turn off verbose logging
To revert the logging level back to its original setting, use this Terminal command:
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This automatically restarts Profile Manager Service.
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