An error occurred while trying to run the project: you cannot start debugging on the Web server. A server error occurred when sending an HTTP request for debugging.

Make sure that the server operation is correct. Verify that there are no syntax errors in Web. config by executing "debug"-"" start execution (not debugging. You may also need to refer to the Asp.net & ATL server debugging topic in the online document.

After inspection, it is found that an error occurred while storing the connection characters accessing the database in Web. config.

Incorrect

......

<! -- Globalization
This section sets the applicationProgramGlobal settings.
-->
<Globalization
Requestencoding = "UTF-8"
Responseencoding = "UTF-8"
/>
 
<Deleetask>
<Add key = "accessconnectionstrings" value = "provider = Microsoft. Jet. oledb.4.0; Data Source =">
</Add>
</Appsettings>

</System. Web>
</Configuration>

 

Should be changed

 

requestencoding = "UTF-8"
responseencoding = "UTF-8"
/>