Unrecognized property "targetframework ". Note that the attribute names are in upper and lower case. Solution

Source: Internet
Author: User
Server error in the "/CRM" application. Configuration Error Note:An error occurred while processing the configuration file required to provide services to the request. Check the specific error information below and modify the configuration file as appropriate.

Analyzer error message:Unrecognized property "targetframework ". Note that the attribute names are in upper and lower case.

Source error:

Row 24: Set to true. Row 25: --> Row 26: <compilation DEBUG = "true" targetframework = "4.0"/> Row 27: <! -- Row 28: <authentication> saves enough energy to configure ASP. NET

Source file:E: \ net \ CRM. web \ WEB. config Row:26

Version:Microsoft. NET Framework Version: 2.0.50727.4961; ASP. NET version: 2.0.50727.4955



You can change the. NET Framework version to the corresponding version. This error occurs when I used to change from 2.0 to 4.0.

My win7 system,

1. Open IIS and click the IIS root node.

2. Check "operations" on the right and click "change. NET Framework Version"

3. Select the corresponding version number. Here I should select v4.0.30319 and click OK.


4. Click the IIS application pool.


5. In the "operations" column on the right, select "application default settings ..."


6. Set ". NET Framework Version Number" to v4.0 and click "OK.

7. Set the required version number to agree. Otherwise, the following error may occur:

Server Error in application "net/CRM"

Internet Information Services 7.5

Error SummaryHTTP Error 404.2-not found: the page you requested cannot be provided because of the "ISAPI and CGI restrictions" list setting on the Web server. Setting method: (1) Enable ISAPI and CGI restrictions 

(2) Find the version number you need but are set to disagree with the execution,


(3) set the version number to be executed to "agree ".

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