I updated Visual Studio on Mac and after it tried to start, it told me I need to install Mono and directed me to a web page for that. I installed Mono. Now every time I launch Visual Studio, it just says
Could not launch Visual Studio
This application requires Xamarin.Mac native library side-by-side.
Please download and install the latest version of Mono.
I tried restarting but that didn't help.
What now?
(I'm running the latest macOS, and updated XCode if that matters. Mono is 5.4.0.201.)
New EDIT:(2022)
Users are saying there's a better way than uninstalling and reinstalling. I haven't tested it myself. See comments and answers for more information.
Previous EDIT:
Uninstalling and reinstalling is still the only way as the answer suggests, on: 2019:
March
July
August
September
The fastest and easiest way will be to uninstall and reinstall Visual Studio.
I have just ran into the same problem. I did follow the alert instructions and installed the newest mono framework from Mono websites (6.10.0). After this still the same issue. So I downloaded and ran VS4M installer and it said, it need version 6.8 of Mono framework and it did offer me to download and install this "update". So i went ahead. Still the same warning after launching VS.
Desperately enough after reading this thread I started looking for uninstall instructions (on official site). I did not want to use the script to auto-uninstall as I rather do it all by myself just for ensuring it will be everything done properly. So manual uninstall said to delete the Visual Studio app from /Application folder first. I did it. And woala: All the sudden the new app called "Visual Studio (old)" appeared (or maybe it was there already but I did not notice? Anyway, it was there). It was certainly weird, but I ran it. And it did work! Working instance of Visual Studio! I did check the updates and there was one for the app only. That was my first step straight after launching. It did download the new update and installed it correctly. Now I have end up with fully working and fully updated version of VS4M!
Conclusion:
Use VS4M installer to install all updates and necessarities to run VS4M. After this go to your /Application folder and delete "Visual Studio" app. The "Visual Studio (old)" app should appear. Run this app and update it straight away. (you might have to rename it afterwards from "Visual Studio (old)" to "Visual Studio")
Did you try going to the Applications folder? You'll see a Visual Studio.app file there and you can run Visual Studio by opening that.
I have sovled the problem by brew install --cask mono-mdk rather than brew install mono, in case anyone is installing mono through brew.
Related
I have installed visual studio 2017 community properly with mobile development packge and I can't find cross platform app in c#
What can I do to install it ?
You should review the installation procedure documented by Microsoft.
If you don't have the Xamarin menu under Help then you may have missed something. You can re-run the installer and change workflows to confirm you have all the required pieces. Note that additional steps are needed to build and deploy, although you see stuck at just the installation step if templates are missing.
The problem was that some files was corrupted because of a faild complete unistallation of xamarin ... so i prefered a speed and smart solution that can help me to continue my work so i installed a new os windows in new partition i tried to install those files , they worked on the new os so it's clear that xamarin will be installed properly finaly i installed the hole visual studio and that worked for me ...
I've Visual Studio 2017 community edition. I have a C# project created using Visual Studio 2015. When I try to open the project in VS 2017 I get an error message prompt:
--------------------- Microsoft Visual Studio
Project 'dataStructureInCSharp' could not be opened because the Visual C# 2017 compiler could not be created.
Please re-install Visual Studio.
--------------------------- OK
I'm trying to obtain help if anyone else has faced similar issue. I feel going the uninstall and then reinstall route is very costly for me and would try that option last if I've got no other resort.
What I've done so far :
Tried starting visual studio with administrative privileges
But problem remained same.
I tried creating a new console project solution from scratch but in that case I get very same error and an additional error error also shown below:
System Environment: Windows 7 Ultimate Service Pack 1
You can try to close all VS 2017 instances and delete the folder %localappdata%\Microsoft\VisualStudio\15.0_xxxx\ComponentModelCache, then open VS to create a new Console project.
Or
please re-run the VS 2017 installer as administrator, click the icon beside ‘Launch’ button and choose ‘Repair’ to repair as shown below:
Just to brief the history of my problem, I had first installed Visual Studio(VS) 2017 community when it was in RC stage. This was first time when I saw the workload based UI of visual studio installation. Initially I simply chose .Net desktop development workload to get started as I was interested in creating only console applications to get my hands dirty.
Initially it was all working well. One fine day I added all other workloads I was interested in namely Universal Windows Platform Development, Azure Development, ASP.NET and web development,Node.js development, and Mobile development with .Net. I'm not sure if there any of the specific workloads to be blamed for the issue I've posted.
Just to avoid the case if RC and RTM release builds might not have messed up my entire environment, I simply uninstalled the entire stuff, rebooted my machine and installed it again from scratch from latest RTM release for Visual Studio Community.
I would strongly recommend that you first try possible solutions suggested by #Sara-MSFT before doing clean reinstall just in case if it works. It can save you couple of hours required in whole reinstallation process if it works.
I am trying to install Monogame on VS 2017 however the option on the installer for VS 2017 is greyed out, even though I have VS 2017 installed. I also have VS 2015 and VS 2010 however I am not sure if it is those that are causing a problem. The version of MonoGame is 3.6.0.1625 and I currently have the directory: C:\Users\MY NAME\Documents\Visual Studio 2017\Templates\ProjectTemplates\Visual C#
Please help thanks
If anyone have this problem and is trying to install on non Admin account then just copy over whole Visual Studio 2017\Templates structure from your Documents to Administrator's Documents. (or the account with admin right you use in UAC prompt to install)
That solved it for me :)
This problem often happens when your templates are in the wrong directory.
The path you provided seems to be the right one tho.
Are your VS2015 templates in the C:\Users\MY NAME\Documents\ directory aswell ?
If not, try to move your VS2017 templates to the same directory as your VS2015 templates.
If those two are both in C:\Users\MY NAME\Documents\, look into Documents\Visual Studio 2017\Templates\ProjectTemplates and try to find the Visual C# folder. If it is missing add a new folder with this name and try again.
OK, simple answer is, that until MonoGame 3.7 drops, you are going to need to download the latest MonoGame Development build from the download page. This is fine as the dev build is still very stable and based off the current MASTER version of MonoGame from source.
I did a short Video on my "Darkside of MonoGame" channel a while back which walks you through everything you need to know to get up and running using VS017. (there is even a version there for VS2015 :D)
https://www.youtube.com/watch?v=zphaylhOrm0
Hope this helps.
I was having this same issue. Uninstalling MonoGame then Visual Studio, and reinstalling Visual Studio then MonoGame worked for me.
I have a problem that when I try to open to create a new C# project in either VS 2013 or 2015, I get an error saying that the program has stopped working then it restarts. I tried disabling .Net Framework 3.5, but it didn't help, also I tried repairing it through the control panel, but it didn't help either. What shall I do?
Uninstall and do a fresh reinstall? – Jacobr365
I DID uninstall Visual Studio 2013 before installing 2015.
Clearing the component cache fixes some issues with Visual Studio: Delete C:\Users[User]\AppData\Local\Microsoft\VisualStudio[Version]\ComponentModelCache or try starting in Safe Mode first: C:\Program Files (x86)\Microsoft Visual Studio [Version]\Common7\IDE\devenv.exe /safemode – Mark
I tried both, but it didn't help.
Thanks
You should uninstall both 2013/2015
With related packages (.net, sql...)
Then reinstall it
Warning: do this only if anything else doesn't worked
I have had this issue before, Use iobit uninstaller or as mention above Ccleaner to fully remove all secondary packages, If you use iobit then when you uninstall it will give you the option to completely clean it from the registry. Restart machine and install again, try install from the web installer. If problem persists then you will most likely have to reinstall your windows OS.
I recently installed VS 2013 on Windows 8.1. When I open up any xaml file I get this error message below.
This happens even if I create a project from scratch in VS 2013. I've tried re-installing Windows 8.1 and VS 2013.
Has anyone come across this issue?
System.Exception Package failed updates, dependency or conflict
validation.
Windows cannot install package
App.a94e67374.a8775.a4662.ab57f.a7f1805386d2c because this package
depends on another package that could not be found. This package
requires minimum version 0.0.0.0 of framework
Microsoft.VCLibs.120.00.Debug published by any publisher to install.
Provide the framework along with this package.
I had the same error just like you.
I registered myself and got a developer licence. After registerering
I debugged the program and it all got fixed by itself
I use windows 10, to fixed it, I go to Setting -> Update & Security -> For developers, I choose Developer mode. In windows 8 and 8.1, I don't know.
the figure of setting
It happened to me as well with both VS 2013 and VS 2015. I think it's a common problem when VS is freshly installed.
I solved it both the times with running VS with administrator privileges (right click on the VS tile on Windows 8 and select "Run as Admin") and opening a XAML file with the editor. It takes some more time than usual, but then the problem gets fixed by itself.
After that you can continue using VS with standard user privileges.
Sadly none of the above solutions seemed to work for me.
My windows 8 installation is quite old and over the years, I had installed several visual studio versions such as 2010,2012 and 2013.
Even uninstalling visual studio, there will be many files and packages left behind.
I managed to fix this issue with the following steps:
1. Install Revo Uninstaller and from the options menu I enabled the "Show system components".
2. For some reason along with the visual studio 2013 ultimate installation (main application - do not uninstall this) I uninstalled two installations related to the main visual studio 2013 application such as: vs 2013 premium and vs 2013 professional apart from the main application (Repeat: Do not uninstall the main app)
3. Uninstall all the Microsoft Visual C++ runtime packages
4. Performed a repair of the the visual studio
Something else that I would rather prefer doing than performing a full repair as it takes far too long, would be to uninstall all the visual C++ runtimes packages and anything related to them (you might brake some apps but they are easy to find and easier to install)
and simply reinstall those visual c++ redistributes starting from the latest version and see if it works.
Before anything however, make sure you have a developer license like said on a previous post (no developer account is required. You don't have to pay for anything yet).
I'll try to provide step-by-step guid to fix the issue.
Please create an MSDN account here https://msdn.microsoft.com and use your login credentials in VS 2013
You have to enable "Developer mode" option from UPDATE & SECURITY (Windows 10). Attaching the screen shot for more clarity.
This should solve the problem, but if it doesn't then,
Try restarting your Visual Studio as administrator.
Some nice reads about configuring your device for development Windows 8 and Windows 10