Switch back to packages.config - clarification on answer - visual-studio-2017

In line with the rules, I have to ask a new question, to get some clarification on another question/answer.
This answer is this one: https://stackoverflow.com/a/45964469/305916
Then what? Just did the accepted answer, but the packages.config file is not populated with the packages (I know it doesn't say so).
I am missing what to do next if the packages appear automatically in the packages.config or I need to install them again...
I am leaning towards the latter, but I feel the answer is not complete :)
But what to do?

Firstly, do you mind editing your question, or posting as a comment, why you want to revert back to packages.config? As a member of the NuGet team, it's useful to know the reasons why PackageReference doesn't work for you. If it's not one of the reasons listed in as a limitations of PackagesConfig, including the package compatibility section, perhaps we can help resolve that issue so you can keep using PackageReference.
If you really want to revert to packages.config, I suggest the following, not the answer that you linked.
Go to Options, NuGet PackageManager->General and enable Allow format selection on first package install
Uninstall all packages in your project using "Manage NuGet Packages" (Package Manager UI). You can use Package Manager Console to uninstall, but you must use Package Manager UI for the next step. Keep track of which packages you uninstall, so you know which to install again in the next step.
Once your project has no package references, then install the packages you need again. The first package you install will pop up a dialog where you choose to use packages.config or PackageReference. If you didn't keep track of which packages you uninstalled in the previous step, use your source control system to diff your project file, or look at an unmodified copy, and look for all instances of PackageReference.
It's necessary to uninstall all packages in the project installing a new one, because if any PackageReference exists in the project file, NuGet will add new packages as PackageReference. Therefore you can't uninstall the first package, re-install it, then move the second package in the project.

I am missing what to do next if the packages appear automatically in the packages.config or I need to install them again...
Yes, you have to install those packages again. That because automatically migrating projects from PackageReference -> packages.config is not something that will be supported.
Check the thread:
https://github.com/NuGet/Home/issues/4973
To accomplish this, you can follow below steps:
First, change the Package Management to Packages.config, Tools->Options->NuGet Package Manager->Package Management:
Second, unload the project and edit it, remove all PackageReference elements out of the project file (Make sure that is not set in the project file.).
Third, reload the project, then reinstall those packages.
Hope this helps.

Related

microsoft visual studio installer projects issue

I made a laucher application in c++ that use direct 2d and 3d. Now i making a installer for this. I followed microsoft docs and i made it but there is a issue.
I use 'Microsoft Visual Studio Installer Projects' extension to make that.
The issue is if i already installed my launcher with a previous installer msi file, if i rebuilt a new installer msi and try to run it it show me this error
This is the microft docs i followed to make this: https://learn.microsoft.com/en-us/cpp/ide/walkthrough-deploying-your-program-cpp?view=msvc-160
In the future maybe i need make a update for my laucher. It isn't good idea everytime need go to control panel, search and delete the previous application and install the new one manually.
Anyone know how can i make it automatic remove old version and install new one? Maybe there is a better way to create a installer?
Major Upgrade: In order to upgrade properly, you need to use a major upgrade so that your new version uninstalls the old one and then installs itself (this can happen in reverse order too: new version installed and old remnants deleted afterwards, but this is another story). There are further upgrade types, but stick to major upgrades for simplicity.
The message you are receiving is basically because you have a different package code for the new MSI, but not a new product code or version number (or just one of those problems). You need to get the settings straight.
Recommended step-by-step:
Set "RemovePreviousVersions" to True in the project properties.
In the same place: bump up your version number (one of the first 3 digits)
Answer yes when asked to change product code, or do so yourself manually.
Keep the UpgradeCode the same - it needs to be stable across releases.
Rebuild your setups. Clean out your box of old remnants before testing or test on a virtual.
Testing: Remember to simulate your full upgrade process from first version installed to the new one with different version numbers for a few core files and also try to add a few files and such things. Very important to verify.
Heads-Up: Before ending, it is standard procedure to warn about the potential limitations of VSInstaller Projects (shorter list form).
MSI Tools: Here is a short "review" of other MSI tools.
MSI Upgrade Types: Shamelessly stolen from the InstallShield help file (towards bottom):

NuGet references in VS

I am using fody and methodboundaryaspect.fody in this class as NuGet references. The references are installed properly but here it says that it can not find "OnMethodBoundaryAspect" which is part of MethodBoundaryAspect. Does anyone faced a similar issue before?
I already tried: Uninstall/install, reopen VS, restore NuGet packages,Update-Package -reinstall, clear NuGet cache, but nothing worked out.
I am using fody and methodboundaryaspect.fody in this class as NuGet
references. The references are installed properly but here it says
that it can not find "OnMethodBoundaryAspect" which is part of
MethodBoundaryAspect.
As for me, if I install this package in a net framework 4.7.2 project, all works well and do not face the errors as you said. So l am afraid that there is something wrong with your project or VS Environment.
Please try these:
1) close VS Instance, delete .vs(hidden folder), obj,bin folder under the solution and then restart your project again.
2) disable any third party extensions under Tools-->Extensions and Updates or just use devenv /safemode(start VS) to test whetehr it is caused by any third party extensions or other packages.
3) Or just create a new empty c# project and then install this package again to test. If it still gets error, please repair your VS. Besides, if your VS is not the latest version, please update it to the latest version.
Hope it could help you.

VSTS feed "refresh" mechanism in Visual Studio

I have set up a VSTS nuget feed. And I have pushed some packages two days ago. I was able to add those packages to my project. But I needed to push an other version for one of them. Made new nupgk version, pushed it and I can see it in VSTS, I can download it from there, Visual Studio 2017 is also listing it correctly but when I try to install it, I am getting an error:
Package 'whatever 1.0.1' is not found in the following primary source(s): 'https://whatever.pkgs.visualstudio.com/_packaging/feedname/nuget/v3/index.json'. Please verify all your online package sources are available (OR) package id, version are specified correctly. 0
What I have tried:
- waiting around 10 minutes
- restarted Visual Studio several times
- pasting the above url into a browser and refreshing it manually several times
One or more of these helped. But I would like to know if there is any canonic solution for that.
I used the answer widget to have some formatting. Still, this might not be "the" answer, as I don't know the mechanism beyond. But it looks to be a workaround.
Steps:
Create a solution with a library project (let's call it L01)
Add another library project to the solution (let's call it D01)
Make a nuget package from L01 (version 0.0.1)
Push the package to your VSTS feed
Manage packages for project D01 and browse your feed
Package L01 v0.0.1 will be listed
Add it to project D01, it will work
Edit L01 nuspec file and change version to 0.0.2
Build and push the new package
Go back to project D01 and refresh the package list. The update will be shown.
Try to update. It will fail with the error message from my question.
Now go to folder %localappdata%\NuGet\v3-cache (or equivalent)
Locate the folder corresponding to your feed and open it
Locate list_l01.lib_index.dat (where l01 is the package name) and delete it
Go back to project D01 and try to install the update. It will succeed.
Would be good if others could confirm. I have reproduced this several times.
Seems you are trying to download the package or packages that where just freshly pushed to VSTS nuget feed.
Since Visual Studio 2017 is listing it correctly, then the issue should not related to the feed on VSTS server.
If this occurs very recently(download the new refresh package) and your package is very large, this maybe a network delay. Suggest you use a fiddler trace when this issue happens again. This makes "some" sense, what you see is probably an incorrect propagation of pushed packages showing up in the search results but not yet available to download.
And some other also encounter the same issue and error as you.
FYI, I've been seeing this exact issue in the past month or so.
Switching between sources, uninstalling and reinstalling are some work
arounds, but not 100%. Pushing my own packages up to VSTS and then
it takes like 15 minutes to finally get it to install.
More details please take a look at this similar issue Package update not found when updating via Visual Studio Solution

NuGet package version is ignored when building

I am using VS 2017. I have this line in my packages.config file.
<package id="System.IdentityModel.Tokens.Jwt" version="4.0.4.403061554" targetFramework="net461" />
I got this error my trying to start my .net application.
System.TypeLoadException: Could not load type 'System.IdentityModel.Tokens.NamedKeySecurityKeyIdentifierClause' from assembly 'System.IdentityModel.Tokens.Jwt, Version=5.2.1.0, Culture=neutral, PublicKeyToken=31bf3856ad364e35
Because System.IdentityModel.Tokens.NamedKeySecurityKeyIdentifierClause really does not exist in version 5.2.1.0. But it seem NuGet simply ignores the version specification, and always loads the latest version.
I have tried to clean NuGet caches, clean and rebuild entire solution, and restart computer...
Is there anything else I can do?
Update
One strange thing I observed in VS 2017. Notice the differences of the icons for System.Data and System.IdentityModel.Tokens.Jwt. When I try to check the properties of the latter, VS says the package is not installed, which it clearly did. The build went successful, but the application just wont load the right version.
There are a couple of steps you can perform to check that the right version is loaded:
Rebuild your solution to make sure all NuGet packages are restored and that the started application is up to date (You already did that).
Check the tag HintPath for the reference in the project file that references the package. Just open the file in a text editor and look for an XML tag starting with <Reference Include="System.IdentityModel.Tokens.Jwt. Make sure that no version-specific reference is set or that the version matches the version in the packages.config file.
Check in the properties of the according reference in Visual Studio that it is resolved correctly. That means, there must be no yellow exclamation-mark icon on the reference in the solution explorer and in the properties of the reference, the Path entry must point to the installed package. Hence, the path should point to the packages directory inside your solution directory and therein into a directory System.IdentityModel.Tokens.Jwt.4.0.4.403061554.
In most cases (from my experience), there is some mismatch between the reference in the packages.config file and in the project file. If that does not help, make sure that no other module is loaded by your application that has a reference to System.IdentityModel.Tokens.Jwt in version 5.2.1.0.
So far, it is still unclear why VS cannot handle the changes of the NuGet packages, and why it thinks my project is using both .Net Framework and .Net Standard at the same time. I bet it is a but in VS, and hope MS can fix it soon.
Before that, installing Rider and use it to fix the packages, then went back to VS, and everything went back to normal.

VS2017 RC1 Installation installation error - Microsoft.PortableLibrary.TargetingPack.Msi failed - No XAML

I had errors installing VS2017 with
Package 'Microsoft.PortableLibrary.TargetingPack.Msi,version=15.0.26004.1' failed to install
The actual IDE will open but I don't have any XAML functionality - it appeared to fail the installation before this component was installed. XAML files won't load and there is no XAML listed under 'Text Editor'.
How to fix this error?
After several hours finally managed to get it to work:
Still not sure exactly what a targeting pack is - and why VS couldn't install it but I manually installed this package and managed to get it to work:
Manually installed:
Microsoft .NET Framework 4.6.2 Developer Pack and Language Packs
https://www.microsoft.com/en-us/download/details.aspx?id=53321
Other things I did that may have contributed to the solution:
I rebooted
I removed all files in C:\ProgramData\Microsoft\VisualStudio\Packages - actually I moved them to an OLD folder and later deleted them. You will see packages downloaded here after you restart the install.
I had previously created a symbolic link from %ProgramData%\Package Cache to another drive to save space (https://superuser.com/questions/455853/can-i-delete-the-folder-c-programdata-package-cache). This symbolic link didn't seem to work anymore leaving me with some files in %ProgramData%\Package Cache and the rest in the other drive. I moved them over and recreated the link. If this is something you did to save disk space and forgot then that could contribute towards a failed solution.
Something above fixed the issue and I now have XAML back again.
Note: The VS2017 RC1 does not support offline installation so that was another avenue I explored and gave up on. The command line switches currently do NOTHING.
I believe the package I needed is the following one but not absolutely sure.
C:\ProgramData\Microsoft\VisualStudio\Packages\Microsoft.PortableLibrary.TargetingPack.Msi,version=15.0.25719.0