Can’t find the compatibility tab in the properties of a file
Can’t find the compatibility tab in the properties of a file

Sometimes you might be asked to run a compatibility troubleshooter, like this: You might be experiencing the problem due to compatibility issues. To fix it, run Program Compatibility Troubleshooter. Follow the steps below: Right-click on the Microsoft Visual Studio icon on your desktop and select Properties. In the Properties window, click on the Compatibility tab. Now, click on... » read more

An unhandled exception occurred while processing the request. Win32Exception: An existing connection was forcibly closed by the remote host
An unhandled exception occurred while processing the request. Win32Exception: An existing connection was forcibly closed by the remote host

Azure .NET web apps connecting to an AWS SQL database kept throwing up this error sporadically, seemingly without any pattern. The full message was this: An unhandled exception occurred while processing the request. Win32Exception: An existing connection was forcibly closed by the remote host. Unknown location.SqlException: A connection was successfully established with the server, but... » read more

#C .NET Core, JsonConvert fails to convert null to bool
#C .NET Core, JsonConvert fails to convert null to bool

Newtonsoft.Json.JsonSerializationException: ‘Error converting value {null} to type “System.Boolean”. Code like this can generate the error: This happens when the bool field in your source is null, and the model you’re converting into’s matching field does not allow nulls. If you don’t mind this field being null in your destination model item, then you can just... » read more

The remote server returned an error: (500) when pinging Zapier in a .NET Core app
The remote server returned an error: (500) when pinging Zapier in a .NET Core app

Getting this error in a .NET Core web app? In this case we were trying to ping Zapier. Server Error in ‘/’ Application.The remote server returned an error: (500) Internal Server Error.Exception Details: System.Net.WebException: The remote server returned an error: (500) Internal Server Error.Stack Trace:[WebException: The remote server returned an error: (500) Internal Server Error.]System.Net.WebClient.OpenRead(Uri... » read more

Azure .NET Core Web App DirectoryNotFoundException: Could not find a part of the path
Azure .NET Core Web App DirectoryNotFoundException: Could not find a part of the path

Getting this error in an Azure .NET Core Web App deployed via GitHub? An unhandled exception occurred while processing the request. DirectoryNotFoundException: Could not find a part of the path ‘D:\home\site\wwwroot\Templates\my_file.html’. System.IO.FileStream.ValidateFileHandle(SafeFileHandle fileHandle) DirectoryNotFoundException: Could not find a part of the path ‘D:\home\site\wwwroot\Templates\my_file.html’. System.IO.FileStream.ValidateFileHandle(SafeFileHandle fileHandle) System.IO.FileStream.CreateFileOpenHandle(FileMode mode, FileShare share, FileOptions options) System.IO.FileStream..ctor(string path, FileMode mode,... » read more

Login failed for user ‘NT AUTHORITY\NETWORK SERVICE’
Login failed for user ‘NT AUTHORITY\NETWORK SERVICE’

After our server people did some MS SQL database restores from some old backups to find some data, some .NET websites we had on the server started showing an error. (note I couldn’t see the error and had to disable custom errors from remote only, see here http://tech.ralpharama.co.uk/1/viewing-errors-remote-machine-after-sql-restores-broke-sites Server Error in '/' Application. Cannot open database... » read more