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
When trying to use GitHub actions to deploy code to an Azure Web App In my case this was quite simple, the Web App was configured to use .NET but my code was .NET Core 3.1. When I updated the Web App to use .NET Core then this worked fine.
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
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
There’s a bunch of info on this already out there, but this is pretty specific – we have an existing set of Microsoft SQL Server databases on an AWS instance and I needed to connect to them in a new WebApp service. Here’s how I did it. This assumes you have an Azure account all... » read more
This isn’t an unusual error, you can find a lot of answers on Stack Overflow, for example. For me I was using a simple WebClient client = new WebClient(); With a send like this: Stream data = client.OpenRead(arguments);StreamReader reader = new StreamReader(data_to_send);s = reader.ReadToEnd(); And getting the error in the title. It said that the... » read more
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
For no reason a rebuild of a .NET MVC project created these errors that wouldn’t go away with restarts, cleans, running as administrator, etc: Error 383 Unable to copy file “..\root\foo\bar\thing\test.thing.xml” to “bar\thing\test.thing.xml”. Access to the path ‘bar\thing\test.thing.xml’ is denied As detailed here: https://stackoverflow.com/questions/2895898/visual-studio-build-fails-unable-to-copy-exe-file-from-obj-debug-to-bin-debug The only thing that worked for me was the answer by https://stackoverflow.com/users/2435679/adrian-booth When... » read more
After creating a new Razor web forms app I scaffolded in an existing database: Scaffold-DbContext "Server=<server>;Database=<db-name>;User ID=<username>;Password=<password>;" Microsoft.EntityFrameworkCore.SqlServer -OutputDir Models And kept getting an error on the newly created entries: A namespace cannot directly contain members such as fields After ensuring I had added Entity Framework to the project using NuGet, I still got the... » read more