# No compatible artifact found when doing delta update

**URL:** <https://hub.mender.io/t/no-compatible-artifact-found-when-doing-delta-update/2969>\
**Category:** General Discussions\
**Tags:** thud\
**Created:** [December 10, 2020, 11:59am UTC](https://hub.mender.io/t/no-compatible-artifact-found-when-doing-delta-update/2969 "2020-12-10T11:59:53Z")\
**Posts on this page:** 4\
**Page:** 1

<div class="post-metadata">

**Author:** ![FloRiAn](https://avatars.discourse-cdn.com/v4/letter/f/898d66/32.png) [@FloRiAn](https://hub.mender.io/u/FloRiAn)\
**Post date:** [December 10, 2020, 11:59am UTC](https://hub.mender.io/t/no-compatible-artifact-found-when-doing-delta-update/2969/1 "2020-12-10T11:59:53Z")

</div>

Hello,  
I followed all the guides to integrate delta-updates.  
The versions I’m using are as following:  
mender 2.0.0 runtime: go1.11.13  
mender-artifact on buildhost version 3.4.0

After provisioning the sdimg to the CM3 I did deploy the rootfs-image to the target.  
`sha265sum /dev/mmcblk0p2 8c0a883e2a4febbd728349fd7cf9331927c5ed354282ec38f7de10b0303ec80d /dev/mmcblk0p2`

The delta image has the correct dependency to this checksum:  
`
build@062f508d05ed:~/mender-raspberrypi/sources/meta-xxx/mender-binary-delta-1.1.0/x86_64$ mender-artifact read v1.2-deltaform-v1.0.mender
Mender artifact:
Name: release-v.1.2
Format: mender
Version: 3
Signature: no signature
Compatible devices: ‘[raspberrypi-cm3]’
Provides group:
Depends on one of artifact(s): []
Depends on one of group(s): []
State scripts:`

`
`

`Updates:
0:
Type: mender-binary-delta
Provides:
rootfs_image_checksum: 327b304f837d6dd175ca1f83d7fb1177012863f997715fbe7e044614860c904c
Depends:
rootfs_image_checksum: 8c0a883e2a4febbd728349fd7cf9331927c5ed354282ec38f7de10b0303ec80d
Metadata:
{
“delta_algorithm”: “xdelta3”,
“rootfs_file_size”: 440401920
}
Files:
name: xxx-image-prod-raspberrypi-cm3.ext4.delta
size: 909792
modified: 2020-12-10 11:25:15 +0000 UTC
checksum: e3056c055b14b86ba62a1b374bda4ab923213f49cd0f1bb565785808fd72a644
`

So all is prepared as described in the howtos.

But all I get in the web-backend is a “No compatible artifact found” error!

We’re still using the Trial Plan and are evaluating Mender so I wonder if the error results from there?

Will delta-updates work on the Trial Plan?

Thanks for your help,  
Florian

---

<div class="post-metadata">

**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\
**Post date:** [December 10, 2020, 12:01pm UTC](https://hub.mender.io/t/no-compatible-artifact-found-when-doing-delta-update/2969/2 "2020-12-10T12:01:36Z")

</div>

Please see the troubleshooting section of: [Robust delta update rootfs](https://hub.mender.io/t/robust-delta-update-rootfs/1144)

> Will delta-updates work on the Trial Plan?

Yes

---

<div class="post-metadata">

**Author:** ![FloRiAn](https://avatars.discourse-cdn.com/v4/letter/f/898d66/32.png) [@FloRiAn](https://hub.mender.io/u/FloRiAn)\
**Post date:** [December 10, 2020, 12:06pm UTC](https://hub.mender.io/t/no-compatible-artifact-found-when-doing-delta-update/2969/3 "2020-12-10T12:06:00Z")

</div>

Hi Mirzak,

thanks for clarifying this.  
Do you have a explanation, why this “No compatible artifact found” error shows up?  
I cannot see any log message on the target, that an error occured.  
Where can I dig further to find an explanation for this behaviour?

Florian

---

<div class="post-metadata">

**Author:** ![mirzak](https://yyz2.discourse-cdn.com/flex036/user_avatar/hub.mender.io/mirzak/32/2056_2.png) [@mirzak](https://hub.mender.io/u/mirzak)\
**Post date:** [December 10, 2020, 12:18pm UTC](https://hub.mender.io/t/no-compatible-artifact-found-when-doing-delta-update/2969/4 "2020-12-10T12:18:09Z")

</div>

> [@FloRiAn](#):
>
> Do you have a explanation, why this “No compatible artifact found” error shows up?

It is covered in the troubleshooting section of [Robust delta update rootfs](https://hub.mender.io/t/robust-delta-update-rootfs/1144), specifically the section with the title “Deployment finishes with “No artifact” without updating the device”.

Most likely it is “issue 1” covered above, and there is a suggestion solution