A network related or instance specified error occurred (Error Microsoft .NET Framework)

I have created an (.exe) setup file in winforms application but when I try to install this application on another computer its giving me an error

Unhandled exception has occurred in your application. If you click continue, the application will ignore this error and attempt to continue. if you click Quit, the application will closed immediately

A network related or instance specified error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. verify that the instance name is correct and that SQL server is configured to allow remote connection (provider: Named Pipes Provider error: 40-could not open a connection to SQL server)

Details

See the end of this message for details on invoking just-in-time (JIT) debugging instead of this dialog box.

************** Exception Text ************** System.Data.SqlClient.SqlException (0x80131904): A network-related or instance-specific error occurred while establishing a connection to SQL Server. The server was not found or was not accessible. Verify that the instance name is correct and that SQL Server is configured to allow remote connections. (provider: Named Pipes Provider, error: 40 - Could not open a connection to SQL Server) ---> System.ComponentModel.Win32Exception (0x80004005): Access is denied at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling, SqlAuthenticationProviderManager sqlAuthProviderManager) at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection) at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource1 retry, DbConnectionOptions userOptions) at System.Data.ProviderBase.DbConnectionClosed.TryOpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource1 retry, DbConnectionOptions userOptions) at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource1 retry) at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource1 retry) at System.Data.SqlClient.SqlConnection.Open() at System.Data.Linq.SqlClient.SqlConnectionManager.UseConnection(IConnectionUser user) at System.Data.Linq.SqlClient.SqlProvider.get_IsSqlCe() at System.Data.Linq.SqlClient.SqlProvider.InitializeProviderMode() at System.Data.Linq.SqlClient.SqlProvider.System.Data.Linq.Provider.IProvider.Execute(Expression query) at System.Data.Linq.DataContext.ExecuteMethodCall(Object instance, MethodInfo methodInfo, Object[] parameters) at SchoolManagementSystem.myDBDataContext.st_getStaffLoginDetails(String username, String password) at SchoolManagementSystem.MainClass.getStaffLogin(String un, String pass) at SchoolManagementSystem.Login.LoginBtn_Click(Object sender, EventArgs e) at System.Windows.Forms.Control.OnClick(EventArgs e) at System.Windows.Forms.Button.OnClick(EventArgs e) at System.Windows.Forms.Button.PerformClick() at System.Windows.Forms.Form.ProcessDialogKey(Keys keyData) at System.Windows.Forms.Control.ProcessDialogKey(Keys keyData) at System.Windows.Forms.Control.ProcessDialogKey(Keys keyData) at System.Windows.Forms.TextBoxBase.ProcessDialogKey(Keys keyData) at System.Windows.Forms.Control.PreProcessMessage(Message& msg) at System.Windows.Forms.Control.PreProcessControlMessageInternal(Control target, Message& msg) at System.Windows.Forms.Application.ThreadContext.PreTranslateMessage(MSG& msg) ClientConnectionId:00000000-0000-0000-0000-000000000000 Error Number:5,State:0,Class:20

************** Loaded Assemblies ************** mscorlib Assembly Version: 4.0.0.0 Win32 Version: 4.8.4069.0 built by: NET48REL1LAST_B CodeBase: file:///C:/Windows/Microsoft.NET/Framework/v4.0.30319/mscorlib.dll ---------------------------------------- SchoolManagementSystem Assembly Version: 2.0.0.0 Win32 Version: 2.0 CodeBase: file:///C:/Program%20Files%20(x86)/Comsoft%20Systems/SMS_SETUP/SchoolManagementSystem.exe ---------------------------------------- System.Windows.Forms Assembly Version: 4.0.0.0 Win32 Version: 4.8.4042.0 built by: NET48REL1LAST_C CodeBase:

file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Windows.Forms/v4.0_4.0.0.0__b77a5c561934e089/Sy 

stem.Windows.Forms.dll ---------------------------------------- System Assembly Version: 4.0.0.0 Win32 Version: 4.8.4001.0 built by: NET48REL1LAST_C CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System/v4.0_4.0.0.0__b77a5c561934e089/System.dll ---------------------------------------- System.Drawing Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Drawing/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Drawing.dll ---------------------------------------- System.Data.Linq Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Data.Linq/v4.0_4.0.0.0__b77a5c561934e089/System.Data.Linq.dll ---------------------------------------- System.Core Assembly Version: 4.0.0.0 Win32 Version: 4.8.4110.0 built by: NET48REL1LAST_B CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Core/v4.0_4.0.0.0__b77a5c561934e089/System.Core.dll ---------------------------------------- System.Configuration Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Configuration/v4.0_4.0.0.0__b03f5f7f11d50a3a/System.Configuration.dll ---------------------------------------- System.Xml Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/System.Xml/v4.0_4.0.0.0__b77a5c561934e089/System.Xml.dll ---------------------------------------- System.Data Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase:

file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Data/v4.0_4.0.0.0__b77a5c561934e089/System.Data.dll

Accessibility Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_MSIL/Accessibility/v4.0_4.0.0.0__b03f5f7f11d50a3a/Accessibility.dll ---------------------------------------- System.Transactions Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.Transactions/v4.0_4.0.0.0__b77a5c561934e089/System.Transactions.dll ---------------------------------------- System.EnterpriseServices Assembly Version: 4.0.0.0 Win32 Version: 4.8.3761.0 built by: NET48REL1 CodeBase: file:///C:/Windows/Microsoft.Net/assembly/GAC_32/System.EnterpriseServices/v4.0_4.0.0.0__b03f5f7f11d50a3a

/System.EnterpriseServices.dll

************** JIT Debugging ************** To enable just-in-time (JIT) debugging, the .config file for this application or computer (machine.config) must have the jitDebugging value set in the system.windows.forms section. The application must also be compiled with debugging enabled.

For example:

<configuration>
    <system.windows.forms jitDebugging="true" />
</configuration>

When JIT debugging is enabled, any unhandled exception
will be sent to the JIT debugger registered on the computer
rather than be handled by this dialog box.