Error running default MVC 6 project - asp.net-core

I was creating First MVC 6 Web Application , but on create only I'm getting error at References ( Error - see Error List ) as shown in Image. I have tried several times also refered many Blogs where giving ASP.NET 5 tutorial ( Stackoverflow, Codeproject, ASP.Net/vNext and many more ) I think there is some problem with my installed VS 2015 or might be some thing else, not getting were I'm making mistake

On your Visual Studio Package Manager Console run the command
dnu restore

While dnu restore usually helps, I have found that the way to make it run automatically is to turn on the checkboxes in Options->Nuget Package manager. If you turn the first two ones on, then it should be doing this automatically without the need to run the console all the time (at least it worked for me).
P.S. I don't know what kind of connection exists between these checkboxes and the dnu restore, but somehow it triggers restore.

Related

nuget command Source Add started to fail out of nowhere with a warning asking for a unique source

I have an c# wpf application and an additional installer project to create an installer of the application. Among many other files, the installer project has a installer.cmd file (I took over it from someone else) and a Product.wxs file. I was able to create an installer by running msbuild tools\installer.cmd /P:Library=net461 /P:Platform=x64 command on the developper comand prompt.
I was trying to create a desktop shortcut in all user's desktops and was playing with *.wxs file for that. I know you guys will roast me because of the following sentence but I don't know what else can I say. Something I did break something and somehow the msbuild starts to give error. I cannot say what I did because I tried many different things.. I went back to original project but it didn't help. So what is done is done. I will talk about the error now.
The error itself doesn't tell much:
C:\workspace\QToolInstaller\tools\installer.cmd(117,5): error MSB3073: The command "nuget Source Add -Name PkgSrc_638107674121812897 -Source C:\workspace\QToolInstaller\exports" exited with code 1.
I checked online to understand this error code but there wasn't much. However there is another line just before this erorr line:
The source specified has already been added to the list of available package sources. Provide a unique source.
Well, this wasn't in usual warning color or marked as a warning. But I think it is worth to investigate.
So the "source" mentioned here is PkgSrc_638107674121812897. I scanned the installer.cmd to see where is this coming form and saw that this file is named by using time ticks as:
<LocalSource>PkgSrc_$([System.DateTime]::UtcNow.Ticks)</LocalSource>
Although I ran the msbuild command multiple times, the name of the source is always different. I ran the command in diagnostic mode by using -verbosity:diag option. And I checked the file name among all the logs. There is no match. I tried to change the name to something ridicolous that cannot be listed anywhere but got the same error. Removed alll the files, created them again, restarted the PC etc. Nothing have changed. This name is really unique and but still I am getting this message. I wish I had logs form previous successfull runs. I cannot tell if this is the cause of the failure or not. Does any of these ring any bell fellas?
It is solved! Luckily a colleague of mine have faced with this before. I hope no one will have to deal with this problem again.
So apparently there is a bug(?). Altought that name is unique it thinks the opposite. When I do list the sources with thw followng command
nuget source
among the one that should be there, there is one extra line as PkgSrc_638107643440982987. Although my installer.cmd suppose to remove the source every time after it is done, it didn't for once. And although the new source is named differently, it doesn't care and gives that non-warning, non-error message followed by a meaningless error code 1 message. How to solve it?
We tried to remove the source by command prompt like this:
nuget source delete -Name PkgSrc_638107643440982987
But it is not deleted. So we went to the Visual Studio->Tools->NuGet Package Manager->Package Manager Settings->Package Sources. Found the guilty source and remove it. And then it is resolved.

Application identity is not set exception all of a sudden

I'm so confused. I have been developing a VB.NET Windows Form in Visual Studio 2015. Its been working great for years. All of a sudden, my call to test if its network deployed when debugging throws:
'System.Deployment.Application.InvalidDeploymentException' in System.Deployment.dll
Additional information: Application identity is not set.
This is the line that throws the error:
If Not System.Deployment.Application.ApplicationDeployment.IsNetworkDeployed Then
I have two projects and one seems to work just fine. I've poured over differences between the two projects and can find nothing. I've poured over StackOverflow and google at large and I can't find anything.
Any ideas?
Thanks for the comments/help. I had a second machine to try and it worked just fine, so the issue was isolated to this specific project on a specific machine. I took TnTinMn's suggestion and poured over the Exception Settings (in VS Debug->Window->Exception Settings, filter by InvalidDeploymentException). On the working machine/projects, it was unchecked. On the non-working machine/project it was checked. I unchecked it, and all is back to normal now. No clue how that randomly got set all of a sudden, but hopefully this helps someone in the future.

Compiled Access Program Runs Fine on 7 Computers but Crashes on 3 others

I have written a rather complex application in Microsoft Access. It is split into front end and back end files. To protect my code, I have compiled it and saved it as a runtime .accde file, which I then changed to an .accdr file to ensure it operated as a runtime. I have created two versions of the application: one for those with 32-bit Office installed and one for those with 64-bit office. I have used Inno Setup to package the application, the data file, and other files such as the icon file, the license file, etc., into an installable package, which works just fine.
Among my team of 27 beta testers of this application, so far 6 have downloaded it, and I have tested it on four of my own computers. On seven of these computers, the installation works perfectly and the application runs with no problems.
On the computers of three of my testers, when they try to run it, they get this error message:
The expression On Open you entered as the event property setting produced the following error: Bad file name or number.
* The expression may not result in the name of a macro, the name of a user-defined function, or [Event Procedure].
I'm pretty sure I know where the code is that's causing the problem, but cannot for the life of me figure out why the application crashes on those 2 computers but not on others.
The On Open event I suspect of causing the problem checks the linked tables, gets their connect string, then looks at the path for that string for the back end database. If it does not find it there, the procedure pops up a file selector dialog and instructs the user to find the data file, then it relinks all the tables.
If anyone could point me in the right direction to fixing this problem, I would be extremely grateful.
This is typically caused by a reference labelled as MISSING.
You have two (three) options:
Run the application on the offending machines with a full version of Access that lets you debug the code
Create a small test application that lists and verifies the references you use, and run this on the offending machines
Remove those two customers
Thanks to all the contributors here. Because of these folks and additional online research, the latest answer I can find is this:
This error occurs on a small percentage of computers on which the app is installed, and no one has yet figured out why, what causes it, or how to fix it. The workaround is to install the 2013 version of the Access runtime, as later versions will still cause the problem.
At least one of the offending computers is running the Click-to-Run version of Office. Still gathering information, but that's the status as of now.

TFS 2015 The item is locked in workspace (null);(null)

We recently upgraded from TFS 2010 to TFS 2015. Everything appears to be fine post-upgrade, but we are getting the error "The item is locked in workspace (null);(null)." on some source control files. It looks like we have some orphaned locks that need to be tracked down and cleaned up, but the tbl_lock database table is not on the database, so the following select query won't work:
select * FROM tbl_Lock l
LEFT JOIN tbl_PendingChange pc
ON l.PendingChangeId = pc.PendingChangeId
WHERE pc.PendingChangeId IS NULL
Does anyone know how to detect and remove these locks in TFS 2015?
I also installed the TFS power tools, and neither Visual Studio 2015 nor the power tools are picking up the locks.
Updated:
BTW, when I run the SELECT query to find out where PendingChangeId is NULL, I get back no rows. I think the trick is the LEFT JOIN. PendingChangeId would be NULL when tbl_Lock also had no record for the PendingChangeId on tbl_PendingChange (and thus the lock was orphaned). So I'd still need to know where the PendingChangeId should normally be joined to in TFS 2015, to identify which files have a lock that is bad. (Or where a workspace no longer exists, which may be another possible source for the issue.)
And I also still need to know how to clean up those bad locks. I'd prefer to do this using the tools, either via the GUI or the command line, but could also do this programmatically either using the API or the TFS Object Model files for TFS 2015.
I really would rather only touch the database directly as a last ditch resort. And I would also rather use tf vc destroy on the item as a last ditch resort as well, since that would wipe out all history on the files.
Update 2
Aha! I think I found a way to identify the files, and it looks like my thinking for what happened may be correct. Unfortunately, I had to probe the database using a READ UNCOMMITTED query to find the information. I couldn't get at this information programmatically or using the tools. (They all showed or acted like the file is not checked out.) The query that I used on TFS 2015 was:
select pc.* from tbl_PendingChange pc
left join tbl_Workspace ws on pc.WorkspaceId = ws.WorkspaceId
where ws.WorkspaceId is null
This returned the three files that have the (null);(null) lock on our database, because the WorkspaceId listed on tbl_PendingChange does not exist anymore on tbl_Workspace.
How did this happen? Our CI server uses temporary TFS workspaces. I think what happened after the upgrade is that our CI server went to check out the file and apply an update to it. (For example, to increment version numbers as part of the build process.) It checked out the file, but failed to apply the update. (Our tools like working with Server workspaces, but it may have ended up with a Local workspace and thus the file was still checked in Local, but checked out on the Server. Thus the change to the file couldn't be applied.) The code that we are using performs a workspace.Delete operation when the process completes, so the workspace was deleted - even though the workspace still had the file checked out! So this created an orphan record on tbl_PendingChange that isn't linked to any Workspace, and thus the file is still locked with pending changes. But the GUI and tools aren't seeing it as such, because they're not realizing the pending change's workspace is non-existent.
So this brings me back around to how do I fix this? If someone knows of a way to get at these orphaned pending changes, I'd appreciate it. I tried using:
TfsTeamProjectCollection tfsTeamProjectCollection = TfsTeamProjectCollectionFactory.GetTeamProjectCollection(new Uri(szProjectUri));
VersionControlServer versionControlServer = tfsTeamProjectCollection.GetService<VersionControlServer>();
string[] items = new[] { ... server item path ... };
PendingSet[] queryPendingSets = versionControlServer.QueryPendingSets(items, RecursionType.None, null, null);
PendingSet[] getPendingSets = versionControlServer.GetPendingSets(items, RecursionType.None);
but these aren't finding the orphans.
Update 3
I finally installed Team Foundation Sidekicks 2015 and gave it a try - status tool specifically, but then other tools. It's finding pending changes, but not the orphaned ones.
You can use Team Foundation Sidekicks to search and undo lock by following steps:
Install the tool and launch it.
Select TFS server to connect.
Select "Tools\Status Sidekick".
Set the "Search criteria" for the information you want.
Click "Search" button.
Select the locked file and click "Unlock lock" button.
You can using below command to undo the pending changes:
tf undo "file_path" /workspace:workspace_name
Or you can just use below command to delete the old workspace
tf workspace /delete /server:your_tfs_server workspace;username
From Visual Studio 2015 GUIļ¼š
File -> Source Control -> Advanced -> Workspaces...
In the dialog that came up, check "Show remote workspaces" and the locked workspace came up in the window. Then selected it and click "Remove".
Details about it, please check this blog and more ways to resolve this you can refer the similar question: What do you do if the file in TFS is locked by someone else?
Update:
According to the sql query. It's looking for .PendingChangeId IS NULL . You can use the similarly tbl_PendingChange under collection database. However, it's not a commendatory method. Since operate directly in the TFS database is not recommended.
The following command has cleared up the pending changesets that were orphaned:
tf vc destroy <itemspec> /startcleanup
After running this command, the file was able to be added back to TFS, and the file could be checked in and out and edited as normal. Running the query:
select pc.* from tbl_PendingChange pc
left join tbl_Workspace ws on pc.WorkspaceId = ws.WorkspaceId
where ws.WorkspaceId is null
also showed that the pending changeset record related to this file was gone as well.
Microsoft's documentation on this command can be found at https://msdn.microsoft.com/en-us/library/bb386005.aspx. Before using this command, you should review the documentation carefully and be sure to understand the consequences of using it.
Because this command permanently removes files and potenally all history from TFS - and does so recursively - you need to take precautions and be absolutely certain that you are targeting the command correctly. So before using this command, I would recommend taking the following additional precautions:
Stop all user and external accesses to TFS and any other software that may be running from the machine.
Make sure to run a full backup of TFS and any other databases located on the machine.
If you can, take a snapshot in time of the server.
That way if something goes horribly wrong, you will have one or more points to fall back on.

Release management not triggered when setting configuration to Release

I divide this to two issues , but solving any one of them will solve the other.
Issue 1:
When I use the section at the bottom of the following picture and add "configurations to release", the build is not triggering release management.
I queried the build logs for hours, and saw that it stops the release when it founds out that the configuration "does not match current"
If ConfigurationsToRelease Matches Current
Initial Property Values
Condition = False
Final Property Values
Condition = False
Final Property Values
Condition = True
before more words, I will show a picture that sums it up:
the build definition and ms build logs
in a default case, where configuration to release is blank , release management would continue from this point and write in the logs "Release the build" (as a command that happened) and the build would trigger release management.
If you look at my tfs build configurations, you can see it's exactly the same as the upper regular ms build configurations , but still I get this error of a mismatch.
In any case I only have only one dialog to fill my configurations at in build definition as shown in the 'configuration dialog' in the above pic.
I succeeded to release once or twice this way in this same project the other day by adding release configurations, it somehow worked, but then stopped working (worked once or twice as a glitch I think like something is cached there) but 99% of the other attempts failed, it was always stopping my trigger from tfs to release since the first time I tried it a few months ago.
Has someone here experienced it? I looked in a lot of places and spotted only one guy that complained about it. His solution was to remove it (not exactly a solution)
Is there a build argument that can fix this? (/p:something=something)
Issue 2: if anyone can solve it in a way different than rm configurations , then I don't need issue 1 to be solved.
For any one who is interested why I even messed with release configuration section of build definition, it's because I want rm to wait for all transformations to happen before rm intervention, and this seems like a way to tell rm , ok dude , see there? you got 2 configurations to wait for their build.
The thing is that by default when that configuration section is blank, rm is getting in the way of tfs build and tfs build is getting in the way of rm, something like a circular wait. rm expects both transformed folders to exist in build outputs when tfs build is waiting for rm to finish it's run after the first build, tfs wants to continue building the second configuration (and transform) but rm is involved already , seeking for it's second configuration, breaking the build when fails to find it, hence the second configuration will never be created, while rm is still waiting for it and tfs build waits for rm and build breaks. confusing? read again and see the pic below cause it's interesting enough.
more info for clarity:
the next stage of RM is trying to get something from build outputs folder before it's already there.
for example , if i set Release build to true , it will only build the first configuration (a folder is created, picture below) , rm will succeed in first step (QA.Release), and continue strait to try and grab Release for its next stage, but it's not built yet by TFS Build , which waits for rm to finish it's weird intervention in the middle of tfs's build work . and like i said above, I'm sure I've seen it work once or twice in one of my attempted builds.
the tfs output folder whith release build flag on(only one transform happens) \ when off (all two transforms work) + rm error when on (circular wait)
If I understand your situation correctly I think your problem is that you are building multiple configurations. This breaks one of the core tenets of continuous delivery which is that for a given release you should build only once and deploy that same build to each stage in your pipeline, in sequence.
In order to do this your build needs to be stage agnostic, which in practice means all your configuration (eg database connection string) needs to be tokensised so that the correct value can be swapped in for the particular stage (QA, Release etc). I have a blog post series here that explains the full process (for a sample web application) in great detail.
i managed to solve issue 2 , and by doing so, issue 1 is no longer relevant .
i switched to ReleaseTfvcTemplate.12.xaml as a build template (found on your C:\Program Files (x86)\Microsoft Visual Studio 12.0\Release Management\Client\bin)
and then the build finished all configurations before RM intervention .
truly seems like a bug in ReleaseDefaultTemplate.11.1.xaml , or this might be because i was using some additional msbuild arguments (which were needed) , or the fact i'm using slow cheetah to create transforms on a windows service (transformations are only introduced in web applications).
either way , i'm now able to perform advanced tasks , like using the transforms to add \ remove tags that should be different in production , for example , i can leave the use of diagnostics in the configuration file for qa use , and remove it for production to make the verbosity lower there . still am using RM PlaceHolders technique in conjunction to transformation technology , to enjoy both worlds where it comes to changes related to environments , but still keeping the principles by passing the same build (dlls) through all environments .