I not able to configure iis
Server Error in '/BillingSystem' 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: Unrecognized attribute 'targetFramework'. Note that attribute names are case-sensitive.
Source Error:
Line 14:
Line 15: <system.web ...
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