This error appears for my code (I'm a begginer and I don't know what to do)

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XML

<connectionStrings>
		<add name="constr1"
			 connectionStrings ="Data Source=DESKTOP-624ATVA\Mjavadabedi;Initial Catalog=sign in data;Integrated Security=true"
		providerName="System.Data.SqlClient"/>
	</connectionStrings>

C#

class Db : DbContext
    {
        public Db() : base("name=constr1")
        {

        }

        public DbSet<human> humans { set; get; }

the error:

Inner Exception 1:
ConfigurationErrorsException: Unrecognized attribute 'connectionStrings'. Note that attribute names are case-sensitive. (C:\Users\IT CITY\source\repos\ثبت\sing in\sing in\bin\Debug\sing in.exe.Config line 14)

What I have tried:

i don't know what to do
i checked the names and they were ok
i checked the sql because i thank that maybe the problem is from that

Posted 15-Mar-24 7:06am

Mjavad Abedi

Updated 15-Mar-24 10:56am

PIEBALDconsult

v2

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snorkie · Answer 1 · 2024-03-15T07:28:00

I think the issue is an easy fix per this documentation Connection Strings and Configuration Files - ADO.NET | Microsoft Learn[^]

The difference being that the inner part should be "connectionString" instead of "connectionStrings"

Try:

XML

<connectionStrings>
		<add name="constr1"
			 connectionString ="Data Source=DESKTOP-624ATVA\Mjavadabedi;Initial Catalog=sign in data;Integrated Security=true"
		providerName="System.Data.SqlClient"/>
	</connectionStrings>

Finally, if you're using SQL Server 2022, you may also need to add ";Encrypt=False" to the end of your connection string. At least helps with my local debugging.