I'm starting with the default Blazor app in Visual Studio 16.3.7 with authentication:
I go to the registration page, enter the email and password, and click the Register button and up comes the following error:
Next I go to Package Manager Console in Visual Studio, and run Update-Database, getting the following error:
CREATE FILE encountered operating system error 5(Access is denied.) while attempting to open or create the physical file 'C:\Users\Halaspnet-BlazorAuthentication-0X0X0X0X0X0-X0X0-X0X0-X0X0-0X0X0X0X0X0.mdf'.
CREATE DATABASE failed. Some file names listed could not be created. Check related errors.
The message points to the culprit, a backslash is missing from the file specification. It should be C:\Users\Hal\aspnet... , not C:\Users\Halaspnet...
So, how do I fix this? I can't find the string "CREATE DATABASE" anywhere in my solution.
Also, how do I get this to Microsoft as a bug report?
Problem solved!
I created the database that the 00000000000000_CreateIdentitySchema.cs wanted using Visual Studio's SQL Server Object Explorer. Then I ran Update-Database in the Package Manager Console, and it completed successfully.
The problem seems to be that I was using the Express edition of SQL Server.
This link got me to the fix for this problem:
Creating A Step-By-Step End-To-End Database Server-Side Blazor Application
Related
We have multiple applications that use EF Core Code First. Earlier, the databases were created automatically on my local Sql Server 2019 when I first debugged an application locally from Visual Studio 2022. Now that stopped working for some reason and I get the following error message:
Cannot open database "XX" requested by the login. The login failed.
Login failed for user 'Domain\user'.
An example connection string is (I also tried adding Trusted_Connection=True; at the end, doesn't change anything):
Data Source=localhost;Initial Catalog=XX;Integrated Security=true
When I use the package manager console "Update-Database" command, the databases are created as expected and all migrations are executed.
Also, I can create databases with the same user 'Domain\user' via SQL Server Management Studio.
One more thing that I noticed is that I get a different error message if I first create an empty database via SSMS and then start the application. In this case no migrations are performed and the error message is (where Events is some table the application uses):
'Invalid object name 'Events'.'
I recently worked on a signature solution. Now i have this worry, it works fine from Visual studio and signs the document. Now the problem is, when i try the same having deployed to IIS , it just stops along the line, shows the confirmation page, but the worry is, it does not even load the base64 from the Database neither does it print the image on the MS word file as it does on Visual Studio. Anyone noticed something like this?
You are probably using Windows authentication when you are running the project in Visual Studio. You have to switch to SQL Authentication through a Database User specific for SQL Server. You do this by:
Creating a database user in SQL Server. See this documentation on Microsoft SQL docs.
Changing the connection string to the following format: ConnectionString="DataSource=.;Database=Sample;user id = test; password=test"
I am trying to download AdventureWorks2012.mdf. The link I am using is (https://github.com/Microsoft/sql-server-samples/releases). I then select the first option "adventure-works-2012-dw-data-file.mdf".
The link seems to download, but then when I go to open it I get an error:
This file does not have a program associated with it for performing this action. Please install a program or, if one is already installed, create an association in the Default Programs control panel
I have a macbook air and I have installed Microsoft by way of a virtual machine. Given all of this information, how am I supposed to resolve this issue so I can get the file to download? I already have SQL Server 2012 installed on my Microsoft.
I got message box
Unable to open the physical file "C:\Project Basdat\DAYCARE.mdf".
Operating system error 5: "5(failed to retrieve text for this error.
Reason: 15105)". (Microsoft SQL Server, Error: 5120)
when trying to attach database file that I made from another pc.
I use Windows 10.
Help :(
The link I posted previously is broken so I removed it. If you run SQL Server Management Studio as administrator it should work just fine.
This is permission issue on folder.
GO to the folder where you have stored mdf file.
select file-> Right click -> click on .
give full permissions to file for logged in user Security and (NT Service\MSSQLSERVER).
When I faced this issue, I tried
Running SQL Management Studio as Administrator
Giving full permissions to the file for logged in user
Still the error persisted.
The reason for this error might be that you copied your program from a source which Windows considers non-trusted.
You can unblock the assembly by clicking "Unblock" after you right-click and select properties on the file.
Hi I have recently upgraded from windows 7 to windows 8.And have installed both Visual studio 2010 and 2012 on my PC.I had two personal application that worked fine under windows 7 but after trying to run them on windows 8 I get the following error.
The first application displays the following error:
The database 'E:\PROJECTS IDE\VISUAL STUDIO\2010\WEBAPPLICATIONS\FORUM\APP_DATA\ASPNETDB.MDF' cannot be opened because it is version 706. This server supports version 655 and earlier. A downgrade path is not supported.
Could not open new database 'E:\PROJECTS IDE\VISUAL STUDIO\2010\WEBAPPLICATIONS\FORUM\APP_DATA\ASPNETDB.MDF'. CREATE DATABASE is aborted.
An attempt to attach an auto-named database for file E:\Projects IDE\Visual Studio\2010\WebApplications\Forum\App_Data\ASPNETDB.MDF failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
This seems to be linked to the ASPNETB.MDF db on both applications.
The second applications runs fine at first but I thing only because I have created with two database and in order to run the app acces to ASPNETDB.MDF is not required.But after I try to login into the application I get this error:
An attempt to attach an auto-named database for file D:\Projects IDE\Visual Studio\MyWork\Websites\e-commerce\e-commerce\App_Data\ASPNETDB.MDF failed. A database with the same name exists, or specified file cannot be opened, or it is located on UNC share.
The reason I am posting both the application problems is because I thing it is the same problem that is preventing my applications from running.
What can I do to solve this problem?