The Issue
I have a Xamarin.Forms app, which runs fine in Android and iOS Simulators, as well as on a physical Android device.
But when I try to deploy to a local physical iOS device, Visual Studio reports a number of similar build errors, all relating to files that I have in the wwwroot folder.
For example:
Unable to copy file "..\BlazorHybridApp\wwwroot\weather.json" to "C:\Users\JohnDoe\AppData\Local\Temp\Xamarin\HotRestart\Signing\BlazorHybridApp.iOS.app\out\Payload\BlazorHybridApp.iOS.app\D:\Dev\MobileBlazorBindings\BlazorHybridApp\BlazorHybridApp\wwwroot\weather.json". The given path's format is not supported. BlazorHybridApp.iOS
Similarly:
Unable to copy file "..\BlazorHybridApp\wwwroot\css\app.css" to "C:\Users\JohnDoe\AppData\Local\Temp\Xamarin\HotRestart\Signing\BlazorHybridApp.iOS.app\out\Payload\BlazorHybridApp.iOS.app\D:\Dev\MobileBlazorBindings\BlazorHybridApp\BlazorHybridApp\wwwroot\css\app.css". The given path's format is not supported. BlazorHybridApp.iOS
Looking at the error detail, the destination path does appear to be malformed.
Interestingly, some of the files included in the build errors are not in fact referenced anywhere within the program code as it stands (e.g. the weather.json file), and so I'm led to believe it's not a referencing/path issue within the program code itself. It seems sufficient for a file to appear in the wwwroot folder (or one of it's sub-folders) for it to generate a build error, but ONLY when building for a physical iOS device.
The Environment
Mac
I'm including the Mac details for completeness, but it seems the build doesn't get as far as the Mac before stopping with build errors.
Xcode 12.5
Windows
Windows 10
Visual Studio 2019 version 16.10.4
I have disabled "Hot Restart" in Tools > Options > Xamarin > iOS Settings in case it was messing things up.
And the files within the wwwroot folder are set as follows within VS:
Can anyone suggest anything I might try?
I managed to "resolve" the issue myself, well, at least side-step it.
When I was getting the build errors, I was trying to deploy to a physical device connected to my Windows machine.
If instead I connected the device to the Mac, and ran the same build process on Windows, the build completed with no errors.
Another weird quirk of Visual Studio, it would seem.
Related
I'm getting these errors, building for any iOS simulator:
C:\Program Files (x86)\Microsoft Visual Studio\2019\Professional\MSBuild\Xamarin\iOS\Xamarin.iOS.Common.targets(473,3): error MSB3231: Unable to remove directory "obj\iPhoneSimulator\Debug\". The directory is not empty
OR
SeverityCodeDescriptionProjectFileLineSuppression StateSuppression State Error Unable to remove directory "UserControls". Access to the path 'D:\Projects\Solutions\mycompany\iOS\obj\iPhoneSimulator\Debug\UserControls' is denied.mycompany.iOS
OR both together...
I'm using VS 2019 version 16.3.7 on Windows 10 machine and Xcode 11.2.1 on Mac Mini, OSX 10.14.6 and it does not matter which iOS simulator targeted, all version 13.2.2. Developing a Xamarin Forms application.
If I switch to target one of my hard devices, I get multiple errors like this:
error : Access to the path 'D:\Projects\Solutions\mycompany\iOS\obj\iPhone\Debug\Popups\TemplatePicker.xaml.g.cs' is denied.
I can work around this by quitting VS, removing read-only flag on the obj folder and all it contents, run VS as admin, THEN it builds and pushes to the device.
Switching back to target a simulator, I get the first error again.
Deleting Bin and Obj folders does not help either.
Side note - this was working until Windows rebooted itself on my dev machine, closing VS and forcing recovery of some files. Android version works just fine in simulator and hard device, no issues.
Wondering if I upgrade VS to version 16.4.5 and Xcode to 11.3.1, this might be resolved. Any ideas?
Are these version compatible with the latest VS-Xcode connector? (I've seen issues with version incompatibility) .
Any ideas? Resolutions?
Thank you
OK, here's what I've found...
The connection and link to XCode from VS on the PC causes a lock or some sort when targeting any iOS simulor. This is intermittent but once the locks are imposed, one needs to
close VS
quit the Simulator on the Mac.
delete the Obj and Bin folders in the solution
Re-open VS, open the project, let it sync with the Mac.
Restart Simulator on the mac
Rebuild. This could take a couple iterations too.
If that does not clear the problem, shut down both machines, remember to delete Obj and Bin folders.
Frustrating, slow, but it works for me for now.
I wrote a Flutter app using IntelliJ on my Linux machine. I need to build the ipa file for iOS devices, and I do not have a Mac.
I plan on using a "Mac in the cloud" server to prepare the release build for the App Store. I have been mapping out all of the steps that I need to do to do the whole process, and I got to wondering: if I am opening my project folders on a server somewhere, do I have to configure the path to the Flutter SDK that I will have to download on to server machine?
I have looked at the Flutter.io documentation, but did not find an answer to this question.
Goal: to generate a release build for iOS on server machine from the project folders that I used on my Linux machine to make release build for Android.
Well, to answer my own question, IntelliJ seems to find the correct flutter path on its own somehow. It give me an error message after build command, but then continues using correct flutter path. I am pretty sure that I never told the program where to find flutter.
I'm new in the Xamarin Development world so I installed Visual Studio 2017 with all the needed cross compiler features.
After downloading and updating the SDKs for Android API 23, 24, 25 and 26 and some corresponding emulator images I got the emulators starting up.
I created a base Xamarin Android App within VS, compiled and deployed it to the simulator.
By deploying/installing the generated APK to the simulator I get the following error:
Failure [INSTALL_FAILED_INVALID_APK: Package couldn't be installed in /data/app/BlankAndroid.BlankAndroid-1: Package /data/app/BlankAndroid.BlankAndroid-1/base.apk code is missing]
It doesn't matter which SDK I choose as “Target Framework” or which Simulator I choose (Android 6, Android 7 or 7.1). The result is the same: The apk is not installed, but the “Mono Shared Runtime” are present and will be updated.
I figured out that the created apk file does not contain a file “classes.dex” or any oder dex files just some ressources. A file “classes.zip” in the directory “obj\Debug\android\bin\classes” with the generated java classes out of my C# is present. These files should be compiled with the DEX-Compiler to the classes.dex file, when I understood correctly.
Even other sample projects from the Internet have exactly the same result.
What do I do wrong?
The problem got solved by fresh installing the Android SDK and all related components. It seemed to have a SDK missmatch between an old Google Android SDK and the new installed Xamarin Android SDK.
I faced the same problem and tried many solutions from the search in web but this one to an extent solved that deploy failure issue.
In the emulator, open settings -> Apps -> Uninstall your app if it is listed
Deploy the app from visual studio again.
This solved the problem that said base.apk is missing.
Try setting your project back to the current recommended defaults. Remove all of the following properties from the .csproj file:
AndroidEnableMultiDex
AndroidDexGenerator
AndroidLinkTool
AndroidDexTool
This will let Xamarin.Android pick the current latest default values, this apply for Visual Studio for Mac and VS 2017-2019
I'm using Visual Studio Enterprise 2015 with Cordova Tools. I have simple bootstrapped HTML5 app, and an iMac running the remotebuild agent.
I have an iPad connected to my Windows machine with VS, and I'm selecting Debug -> iOS -> Local Device
VS seems to successfully post the build request to the iMac, it builds successfully, but then VS output window repeats over and over that "build completed successfully".
I can't see how to install my app on the connected iPad - I've installed a provisioning profile, and have iTunes installed, but no idea what is supposed to happen next.
Its a bug in visual studio 2015 and seems to effect ios developers running OSX Yosemite (Most reports were coming from that version)
there are 2 common problems with git integration in the transformation process(its likely that your project has created one during the transfer):
.git* (.gitignore and etc.) are located in wrong folder
.git* (.gitignore and etc.) are configured improperly
Solution:
move anything .git* to your root folder. i.e the folder with .sln file except the ones located in other platforms' (android, etc.) folder, they are probably located in the project folder(one level inside root project folder) or less likely, the www folder.
reconfigure your .git* files, since its not a git related question i'll try not to bother with details but an example visual studio .gitignore can be found
here (it will most likely solve your problem alone)
Hope the answer was helpful, btw let me know whether the solution has fixed your problem, there are plenty of bugs in cordova development in V.S 2015 and your best bet is to wait for update 1 unfortunately.
i have Windows 7 64bit on my PC and i have Windows 7 32bit on my vmfusion on mac.
The problem is as follows, if i run early version of blackberry simulators (not touchscreen, but with scroll ball), i do not get network access. I try to run MDS as i have read on forums, but it looks like MDS quits, and i still have no network acess.
The new simulators, let me just run them, and i dont even need to lunch mds, i get access to network with no problem. But the project i am working on, requires me to test mobile site again older blackberry devices.
So here is what i have done so far:
Made sure i have following for java: "C:\Program Files (x86)\Java\jre6" "C:\Program Files (x86)\Java\jdk1.5.0_22" "C:\Program Files (x86)\Java\jre1.5.0_22", do i need anything else?
set up environment path variable to bin folders: C:\Program Files (x86)\Java\jdk1.5.0_22\bin;C:\Program Files (x86)\Java\jre1.5.0_22\bin;
installed everything at separate location as administrator (D:\Programs\Research In Motion), so not to have any write/read issues.
installed MDS and then BlackBerry Smartphone Simulators 4.5.0 - 4.5.0.81 (8100)
now i try to run MDS first, and i see two cmd/three windows popping up one after another, and closing right away. I start up simulator and everything starst great, but when i go to browser and try to navigate to web resource i get an error "Unable to connect to the selected Mobile Data Service, please try again later".
Little edit:
I have moved my effort to XP, which solved MDS start up issue, but simulator still cant establish network connection. See screen shot.
To start MDS you will have to start a console with "Run as administrator" then go to the path where you installed mds and start the .bat file from your elevated console.
Here the console command to start MDS.
EDIT
When MDS is running you can connect to it with your browser to see what is not working
goto : http://localhost:8080/