ASP.NET Core
A set of technologies in the .NET Framework for building web applications and XML web services.
4,815 questions
Add Scaffolded Item Erorr with startindex cannot be larger than length of string.
![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(64, 20%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3ER%3C/text%3E%3C/svg%3E)
Rodge
1
Reputation point
I try to follow the Microsoft Document WebApp MVC and stuck at part 4 Add a model
It shows Error with StartIndex cannot be larger than length of string.
My code only has a student class
And this package I Installed.
ASP.NET Core
ASP.NET
ASP.NET
A set of technologies in the .NET Framework for building web applications and XML web services.
3,597 questions
{count} votes
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(128, 8%, 22%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EA%3C/text%3E%3C/svg%3E)
Anonymous2022-12-01T02:49:01.313+00:00 Hi @Rodge ,
Try to add the Scaffolded Item again.
According to your description, I create a Asp.net 6 MVC application, and refer to the MVC document to add the model, the Scaffold works well, can't reproduce the problem. I'm using Microsoft Visual Studio Community 2022 17.4.1 and the installed packages as below: (you can ignore the Newtonsoft.Json and the TypeScript package).
So, I suggest you can try to create a new application and check it again. Or you can try to downgrade the
Microsoft.EntityFrameworkCore.Designversion and use the 6.0.10 version, so that all the EF core related package will use the same version. -
Rodge 1 Reputation point
2022-12-01T05:40:51.85+00:00 
It still pops up with the same error.I'm using Microsoft Visual Studio Community 2022 17.4.1
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![](data:image/svg+xml, %3Csvg xmlns='http://www.w3.org/2000/svg' height='64' class='font-weight-bold' style='font: 600 30.11764705882353px "SegoeUI", Arial' width='64'%3E%3Ccircle fill='hsl(70.4, 14.000000000000002%, 16%)' cx='32' cy='32' r='32' /%3E%3Ctext x='50%25' y='55%25' dominant-baseline='middle' text-anchor='middle' fill='%23FFF' %3EAW%3C/text%3E%3C/svg%3E)
Arun Wealth 0 Reputation points2023-05-05T04:29:39.63+00:00 Hi @Rodge , Did you solved this problem? I still face same problem.
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