How To Reproduce

1. Create credentials at app.vikunja.cloud/user/settings/caldav.

2. Add a CalDAV account in org.tasks: ¹

   1. Enter the generated token as the password.

   2. Enter the username as the username.

   3. Enter the URI, including the appended username, as the URI.

   4. Save.

3. Attempt to create a new list in org.tasks' GUI.

The problem

A toast renders, ² which states: ³

Conducted Diagnosis

user-attachments/files/23195944/logs.zip contains the logs: ⁴

----------
Tasks: 14.8.3 (generic build 140818)
Android: 15 (FP5.VT2E.C.059.20250908)
Locale: en_GB_#u-fw-mon-mu-celsius
Model: Fairphone FP5
Product: FP5 (FP5)
Kernel: 5.4.274-qgki-g67a8c76d3b27 (VT2E)
----------
notifications: true
reminders: true
background location: false
foreground location: true
calendar: true
----------
dont keep activities: null
----------

I have uploaded a .PCAPof it reproducing, filtered to org.tasks, ⁵ at drive.google.com/drive/folders/1w0SNJsyi3q__h1-5U5SLmmGT_Tq40E3d. You shall need to notify me if you desire access to it. ⁶

My Environment

1. Involved Applications

   • go-vikunja/vikunja v1.0.0-rc2 ⁷

   • sourcePackage=org.tasks
     versionName=14.8.3
     versionCode=140818

   • sourcePackage=at.bitfire.davdroid
     versionName=4.5.4-ose
     versionCode=405040005

     However, the account was added via org.tasks' GUI.

2. The OS

   [ro.build.version.release]: [15]
   [ro.build.display.id]: [FP5.VT2E.C.059.20250908]

3. The Device

   [ro.product.brand]: [Fairphone]
   [ro.build.product]: [FP5]