why iam getting this error

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Server Error in '/' Application.
Configuration Error
Description: An error occurred during the processing of a configuration file required to service this request. Please review the specific error details below and modify your configuration file appropriately.

Parser Error Message: Could not load file or assembly 'Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' or one of its dependencies. The system cannot find the file specified.

Source Error:


Line 14:         <add assembly="System.Design, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
Line 15:         <add assembly="System.Windows.Forms, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B77A5C561934E089" />
Line 16:         <add assembly="Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
Line 17:         <add assembly="Microsoft.ReportViewer.Common, Version=10.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />
Line 18:         <add assembly="Microsoft.Build.Framework, Version=4.0.0.0, Culture=neutral, PublicKeyToken=B03F5F7F11D50A3A" />


Source File: C:\Users\Ashwini\Desktop\Technician\web.config    Line: 16

Assembly Load Trace: The following information can be helpful to determine why the assembly 'Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a' could not be loaded.


=== Pre-bind state information ===
LOG: User = JellyBen\Ashwini
LOG: DisplayName = Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
 (Fully-specified)
LOG: Appbase = file:///C:/Users/Ashwini/Desktop/Technician/
LOG: Initial PrivatePath = C:\Users\Ashwini\Desktop\Technician\bin
Calling assembly : (Unknown).
===
LOG: This bind starts in default load context.
LOG: Using application configuration file: C:\Users\Ashwini\Desktop\Technician\web.config
LOG: Using host configuration file: C:\Users\Ashwini\Documents\IISExpress\config\aspnet.config
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: Microsoft.ReportViewer.WebForms, Version=10.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a
LOG: Attempting download of new URL file:///C:/Users/Ashwini/AppData/Local/Temp/Temporary ASP.NET Files/root/cc58a8b2/1a4d661/Microsoft.ReportViewer.WebForms.DLL.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/AppData/Local/Temp/Temporary ASP.NET Files/root/cc58a8b2/1a4d661/Microsoft.ReportViewer.WebForms/Microsoft.ReportViewer.WebForms.DLL.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/Desktop/Technician/bin/Microsoft.ReportViewer.WebForms.DLL.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/Desktop/Technician/bin/Microsoft.ReportViewer.WebForms/Microsoft.ReportViewer.WebForms.DLL.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/AppData/Local/Temp/Temporary ASP.NET Files/root/cc58a8b2/1a4d661/Microsoft.ReportViewer.WebForms.EXE.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/AppData/Local/Temp/Temporary ASP.NET Files/root/cc58a8b2/1a4d661/Microsoft.ReportViewer.WebForms/Microsoft.ReportViewer.WebForms.EXE.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/Desktop/Technician/bin/Microsoft.ReportViewer.WebForms.EXE.
LOG: Attempting download of new URL file:///C:/Users/Ashwini/Desktop/Technician/bin/Microsoft.ReportViewer.WebForms/Microsoft.ReportViewer.WebForms.EXE

Posted 15-Jan-14 21:42pm

ashwini dharamsale

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Karthik_Mahalingam 16-Jan-14 3:49am

check this link http://stackoverflow.com/questions/14069741/assembly-conflict-microsoft-reportviewer-webforms/14071486#14071486

ashwini dharamsale 16-Jan-14 3:58am

no iam not getting still same problem

Karthik_Mahalingam 16-Jan-14 3:59am

pls check the Microsoft.ReportViewer.WebForms dll is refered in your project Refereces

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OriginalGriff · Answer 1 · 2014-01-15T21:56:00

When you get an error message you don't understand, the first thing to do is feed it into Google:
Google "Could not load file or assembly ...[^]
This provides you a lot of links from people having the same problem, and several solutions depending on your circumstances.

In future, please try to do at least basic research yourself, and save your time and ours?

mc11b32 · Answer 2 · 2016-01-31T23:50:00

Solution 2

The following information can be helpful to determine why the assembly 'Microsoft.ReportViewer.WebForms, Version=11.0.0.0, Culture=neutral, PublicKeyToken=89845dcd8080cc91' could not be loaded.

the following project run online and give this error

Posted 31-Jan-16 23:50pm

mc11b32

Updated 1-Feb-16 0:06am