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Hi Erik,

We have updated our platform to 26.2.250801.2 and your application also has been updated to: 12.0.0.619.

When i try to publish my created app, i get the following error (see downhere).

When we open the app.json in VSC, we see that the platform refers to 1.0.0.0 and not 26.0.0.0.

I don’t know what to do right now.

Our production environment does not have the created fields right now so there is a big issue right now.

Our supplier 4PS Construct (consultancy) have also tried to think with me, but they can’t also see the problem.

I hope that u can help me.

Problem in extension:

A package with publisher ‘Microsoft’, name ‘Application’, and a version compatible with ‘26.0.0.0’ could not be found in the package cache folders: C:
local
Temp
2d4b0b97-1226-4dea-b9eb-a7f260482f4b
.alpackages

Sourcecode:

Als u ondersteuning vraagt, geeft u de volgende details op om het probleem op te lossen:

Foutmelding:
Index and length must refer to a location within the string. (Parameter ‘length’)

Interne sessie-id:
be9789c4-7930-49f2-8a51-68b4e9e53311

Id van Application Insights-sessie:
a39e1d43-1ab6-480d-bdba-55e69668c22c

Id van clientactiviteit:
8fe62caf-a4f7-42b2-bbbd-90435bacaf1d

Tijdstempel van fout:
2025-11-06T22:41:47.5884936Z

Telemetrie-id van de gebruiker:
b9d9c0bd-66c0-491f-a483-8902863ac77d

AL-aanroepstack:
“CompilerHost Output List Hgd”(Page 70310318).”GetSupportInformation – OnAction”(Trigger) line 11 – Simple Object Designer by Hougaard version 12.0.0.619

hougaard Answered question