---
title: "SEPAL Optical Mosaic generation always get the same download error message"
url: "https://openforis.support/questions/3382/sepal-optical-mosaic-generation-always-get-the-same-download-error-message"
tags: ["sepal"]
status: "answered"
score: 0
answer_count: 1
asked: "2022-04-21T15:24:38"
last_activity: "2022-05-19T16:35:36"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# SEPAL Optical Mosaic generation always get the same download error message

Asked by JasonH on 2022-04-21

I have used SEPAL since the end of January and I never had any problems creating Optical Mosaics, and then all of a sudden I started having problems downloading images. I always get the same following error message: 

"ServerException: The specified location constraint is not valid"

I tried selecting different Areas of Interests, different dates, and different satellite sources (landsat 4-5, landsat 7, landsat 8 and sentinel-2). I even tried using another computer, creating a new SEPAL account, and I always get the same error message. Files get created but they don't have anything inside. This problem started in mid March, and ever since I try every so often to try downloading images and always the same error occurs. I still have resources, but each time I try retrieving a mosaic the instance spending increases. I am not connected to a Google account as I have been waiting since January a response from GEE. The images normally just downloaded into my SEPAL workspace from where I could download the images to my computer. I am not sure what the problem is and how to fix it.


## Answer (score 0, by wiell on 2022-05-09)

Link: https://openforis.support/questions/3382/sepal-optical-mosaic-generation-always-get-the-same-download-error-message/3393

We released a fix for this issue a couple of days ago. It was triggered for users that didn't use their own Google account. While you (now) can do some exports without your own account, it is typically a good idea. Click your user name, then the Google account button.

> Thank you very much for your answer! Last week I was finally able to download mosaics even if I wasn't connected to a Google account. I asked again to get access to GEE, and this week I got access to it. So I can now connect my G account to my SEPAL account. (JasonH)