Downgrade Xamarin.Android 4.14 - c#

I've installed Xamarin.Android 4.16 but I have a bug with date and time in this version. So I want to rollback to Xamarin.Android 4.14.
I searched the version 4.14 of Xamarin.Android for Visual Studio, but I can't find it.
Does somebody know the link to access to this version ?
I saw this post : Downgrade Xamarin.Android and I tried to change the link of the .msi with my version number but I can't find it.
Thanks for your help!

You can get several previous versions right from your Xamarin's account. Go to https://store.xamarin.com/account/my/subscription/downloads and select View all versions. Choose what you want. It may happen that required version is not there. Then, just contact support and tell them what version you need (or approximate date/month of your required version if you do not know the number).

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Languages disappearing in VS 2019

I am brand new to asking questions in SO and I do not really know if this question is meant to be asked here but here i am asking anyways.
I will cut to the chase now.
I am using VS 2019 Community and whenever I install for example .NET for C# development , my C++ disappears and I need to reinstall the whole Desktop Development with C++ package and when that gets done , the .NET development package disappears and needs to be reinstalled to be used again.
Does anyone have an idea on why that happens and how it can be fixed?
Hi and welcome to Stack Overflow. RUn your installer and select modify if you've already got it installed.
You'll arrive at a screen like this (this uses my VS 2019 Preview installation which doesn't have a lot selected.)
When you have arrived at this page, select the workload you want, in this case "Desktop Development with C++". It will show you how much space will be required. On the right, you'll see it show you the details of what it will install, and you can add/remove any specific SDK versions that you may want right there.
The space required will update to reflect your changes and then once you're done. In this case, I selected Windows SDK version 17763 (I only had one other selected on this device).
After this you'll have everything you had before, and the new workload that you have just installed.

SonarLint Binding Project Count Error since Version 2.8.0.214

I have the same problems as the user on the page SonarLint Binding Error since Version 2.8.0.214 - Project Count out of Range?.
On your Jira board I found the ticket https://jira.sonarsource.com/browse/SVS-123 that bug will be fixed in the version 2.8.1.
For that reason I´m interested on the information, when do you plan to release this version.
Otherwise is there a workaround? Is there a possibility to install an older version for example?
We are still working on another issue we wanted to ship within the same version and we will let you know when the fix will be ready. In the meantime, I can suggest to you to either:
Clone our git repository, compile the code and install the extension.
Uninstall the current version of the extension. Download and install version 2.7 and in your Visual Studio options uncheck the automatic update of the extensions (otherwise you will get back to 2.8). Remark: v2.7 doesn't provide the connected mode for VB.Net.

Visual Studio error when I right click UWP project not finding framework

I am having the exact same issue/error as this post from yesterday. Similar SO Post
SIDE NOTE...As you can see, I am new and therefore, only have 45 reputation. As such, I could not simply add a comment to the above existing post and had to create a whole new post even though they are the same issue....seems silly. But I digress....
I wanted to provide additional comments in the hopes to get an answer. My issue started suddenly the a few days ago. I made no major changes to references, VS updates, etc... However, when I right click my csproj in visual studio, I get the error and I have to click it five times before it goes away, at which point I finally get the menu.
Again, I have made no major changes BUT I went ahead and confirmed that:
My target version and Min version is Windows 10(10.0; Build 10586). That is the SDK version that I have installed and am using.
I verified that my NuGet updates are complete and that my Microsoft.NetCore.UniversalWindowsPlatform are installed and update to date (5.2.2 as of now).
I do have a reference also to "Universal Windows". This was created automatically when I created my project and I cannot remove this reference but it is there. When I select it, I do see that it is "UAP,Version=10.0.10586.0" so this should be good. I do notice a possible issue here. Again, this reference was created for me and I cannot remove or change it. However, it is pointed to a folder named
C:\Program Files(x86)\Windows Kits\10\References\Windows.ApplicationModel.Calls.CallsVoipContract\1.0.0.0\
Why did the Windows Universal reference default to that folder and only that folder? I am not using VoIP so I wonder why it chose this one? Also, what if I need some of the other references in the References folder?
I created a brand new Windows Universal project and the same error happens on a fresh project.
Please help, it is annoying. Project still seems to build and work fine though.
Thanks!
I found the issue in my case, it was an extension that I added on to Visual Studio provided by SyncFusion (which their installer actually creates 7 or se extensions in Visual Studio). After troubleshooting my issue and doing some of the same things to resolve (repairing .Net, SDK, Visual Studio) I then thought about the error a bit more. While it is cryptic (and has poor english "An Exception has been occured") these are all clues that it could be any of the frameworks that I have installed via extensions as well.
I also had another clue, the issue started happening a few weeks ago, around the time I updated my SyncFusion controls to the latest version.
So, I went to Tools > Extensions and Updates. I went to Installed > All and found all of the SyncFusion items (there are several) and disabled them all. After I disabled them, and restarted Visual Studio, the problem went away!!!
This is a workaround for now. In the meantime, I put in a support ticket with SyncFusion on the issue. I will certainly update this thread when I get a response from them. Also in the meantime, I then went back and re-enabled each of them again, one at a time, to see who the real culprit was. In my case it was the SyncFusion Web Conversion and Migration extension.
If any of you are not using SyncFusion but having odd Visual Studio issues such as this, I suggest doing something similar by going through your extensions and disable any that you added on, starting with the most recent add ons, especially if they were added around the same time you started having the problem until you find the culprit.
Hope this helps!

Not able to upgrade to TeeChart 4.1.2012.01310 via WindowsInstaller

The mentioned version of the TeeChart was released at the End of January 2013. The included TeeChart.dll has version (e.g. the .net40 one): 4.1.2012.1312. Unfortunately this version is smaller than all previous version of the TeeChart released in 2012. Actually the version should be 4.1.2013.1312, but it is not. Because of the version mismatch the WindowsInstaller is not able to upgrade this library. It uninstalls the previous one, but doesn't install this one, because its version is older as e.g. 4.1.2012.2283.
So does anybody (specially Steema guys are asked here) has any idea how I'm supposed to distribute that by a normal Visual Studio vdproj setup???
What I'm currently doing is: I modify the 'File' table within the MSI file and set the value of the 'Version' column for the TeeChart to the correct version and it works. Unfortunately this version is the last one, which my license includes, so I'm not able to skip it and move to any of the following versions of 2013 without buying a new license.
First of all, bear in mind that *.vdproj projects are a deprecated Microsoft technology as you can read here:
The Visual Studio setup projects will not ship again – VS 2010 was the
last release with support for it. So, you’ll want to make plans to
migrate to something else.
Having that in mind I can think of the following options:
That's an unfortunate coincidence. However, if you stick with *.vdproj, you might need to upgrade your TeeChart subscription to get an up to date assembly.
Alternatively, you can use a workaround similar to what 0xA3’s answer here.
Considering that *.vdproj is an obsolete technology and given OxA3's answer, you could upgrade your installer builder toll as suggested in Christopher Painter's comment:
I've been down that road with VDPROJ and in no time you'll hav dozens
of these postbuild scripts to get around the fact that VDPROJ sucks.
Dump VDPROJ now for another tool (WiX or IS 2010 LE ) and you'll have
a longer life. :-)

How to have two versions of the same application installed on the same PC?

I have two versions of the same application. I want to install them to the same PC. When I install I get the error :
Another version of this product is already installed. Installation of this version cannot continue. To configure or remove the existing version of this product, use Add/Remove Programs on the Control Panel.
Is there something I can do in the version settings?
I am not sure why you need two version are installed in the same PC.
If you want, you can change the version(please find screenshot below e.g 2.7 => 2.8). There will be a popup windows that ask you to change ProductCode. If you say yes to the dialog. VS will change your product code for you. You can install newer version.
This MSDN Blog gives a good explaination of what the UpgradeCode, ProductCode and PackageCodes are used for. It looks like you will need to change the UpgradeCode.
From above Link
the windows installer will use the UpgradeCode to decide if previous versions of this product are already present on the system.

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