# Can't synchronize with Android App and Nextcloud server

**URL:** <https://discourse.joplinapp.org/t/cant-synchronize-with-android-app-and-nextcloud-server/38273>\
**Category:** Support\
**Created:** [25 May 2024 16:44 UTC](https://discourse.joplinapp.org/t/cant-synchronize-with-android-app-and-nextcloud-server/38273 "2024-05-25T16:44:06Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![Piscenois](https://avatars.discourse-cdn.com/v4/letter/p/5daacb/32.png) [@Piscenois](https://discourse.joplinapp.org/u/Piscenois)\
**Post date:** [25 May 2024 16:44 UTC](https://discourse.joplinapp.org/t/cant-synchronize-with-android-app-and-nextcloud-server/38273/1 "2024-05-25T16:44:07Z")

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### Operating system

Android

### Joplin version

3.0.3

### Desktop version info

2.12.19 (prod, linux)

### Sync target

Nextcloud

### What issue do you have?

Hi,

I can synchronize with Joplin for desktop but not with Android app. I get this error message :  
Error: PROFIND locks/: Unknown error 2 (500):

# 500 Internal Server Error
An internal server error occurred.

If it can help here are the logs of nginx and nextcloud for the 2 Joplin applications.

Joplin For Desktop

nginx

GET /remote.php/dav/files/[username]/joplin/info.json HTTP/1.1" 200 200 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin/locks/ HTTP/1.1" 207 290 "-" "Joplin/1.0" "x.x.x.x"  
PUT /remote.php/dav/files/[username]/joplin/locks/1\_1\_b1ad148095f74920aa958ff4cdc0825f.json HTTP/1.1" 201 0 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin/locks/ HTTP/1.1" 207 334 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin// HTTP/1.1" 207 633 "-" "Joplin/1.0" "x.x.x.x"  
DELETE /remote.php/dav/files/[username]/joplin/locks/1\_1\_b1ad148095f74920aa958ff4cdc0825f.json HTTP/1.1" 204 0 "-" "Joplin/1.0" "x.x.x.x"

nextcloud

"GET /index.php" 200  
"GET /remote.php" 200  
"PROPFIND /remote.php" 207  
"PUT /remote.php" 201  
"PROPFIND /remote.php" 207  
"PROPFIND /remote.php" 207  
"DELETE /remote.php" 204

Joplin Android app

nginx

GET /remote.php/dav/files/[username]/joplin/info.json HTTP/1.1" 200 200 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin/locks/ HTTP/1.1" 499 0 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin/locks/ HTTP/1.1" 499 0 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin/locks/ HTTP/1.1" 499 0 "-" "Joplin/1.0" "x.x.x.x"  
PROPFIND /remote.php/dav/files/[username]/joplin/locks/ HTTP/1.1" 499 0 "-" "Joplin/1.0" "x.x.x.x"  
DELETE /remote.php/dav/files/[username]/joplin/locks/1\_2\_009b7d586f484836925c8e75e8258822.json HTTP/1.1" 404 243 "-" "Joplin/1.0" "x.x.x.x"

nextcloud

"GET /remote.php" 200  
"PROPFIND /remote.php" 207  
"PROPFIND /remote.php" 207  
"PROPFIND /remote.php" 207  
"PROPFIND /remote.php" 207  
"DELETE /remote.php" 404

We can see that calls are differents. I can't know if it make sense.

FYI I have disabled the Joplin desktop synchronization to avoid conflicts when testing.

Regards

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<div class="post-metadata">

**Author:** ![system](https://canada1.discourse-cdn.com/flex028/uploads/cozic/original/3X/1/c/1c948e33314e232a0927789508474d8624f4270b.png) [@system](https://discourse.joplinapp.org/u/system)\
**Post date:** [24 June 2024 16:45 UTC](https://discourse.joplinapp.org/t/cant-synchronize-with-android-app-and-nextcloud-server/38273/2 "2024-06-24T16:45:05Z")

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