upgrading to umbraco version 7153 from 73 on the way to v14 - Using Umbraco and getting started

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Steve Brereton 32 posts 173 karma points

Jun 05, 2024 @ 10:16
0

Upgrading to Umbraco version 7.15.3 from 7.3 (on the way to v14)
Having been handed a funcitoning v7.3 system and told to get it upgraded to 14, its taken me some time to get the first step upgrade to actually work.

Downloaded the 7.15.3 zip and copied / merged many a file. A lot of editing of dll version numbers and various files that were not mentioned in the basic instructions. Opened up the admin interface ok, but cannot get the front end of the site to open.

What I do get is:
```
"'System.Collections.Generic.List<Umbraco.Core.Models.IPublishedContent>' does not contain a definition for 'Split'"
```
It points at line 5 in HomePage.cshtml -
```
var topNodes = home.topLinks.Split(',');
```
As with all the other errors, this must be a missed file somewhere or the wrong version of something but I'm stuck - any thoughts or suggestions?
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Marcio Goularte 388 posts 1360 karma points

Jun 05, 2024 @ 13:19
100
Hello,

I believe you are using ModelsBuilder and that "toplinks" is a tree node picker. See how you can change your implementation here

https://docs.umbraco.com/umbraco-cms/fundamentals/backoffice/property-editors/built-in-umbraco-property-editors/multinode-treepicker#mvc-view-example

see if this works
```
var topLinks= Model.Value<IEnumerable<IPublishedContent>>("topLinks"); 
```
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Steve Brereton 32 posts 173 karma points

Jun 06, 2024 @ 11:15

101

Thanks. Whilst the code change didn't do anything, I discovered that ModelsBuilder was added after v7.3 and that the install instructions didn't allow for that. Copying the ModelsBuilder folder to the App_Plugins folder fixes it.

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Upgrading to Umbraco version 7.15.3 from 7.3 (on the way to v14)