# Troubleshooting

## MAV Logs and additional information

When reporting a MAV application issue to <support@akoyabio.com>, we may request logs and additional information to help facilitate resolving the issue. Step-by-step instructions for retrieving logs and additional information (MAV version, FIJI/Java version, system information, etc) can be found in the following document:&#x20;

{% file src="<https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M8IRMDek7nyRjFEDauN%2F-M8IZjLcqDO9CTuKnhey%2FMAV%20troubleshooting%20-%20Information%20request.pdf?alt=media&token=6e072683-f9a5-4e81-8770-e521639b3ed1>" %}

By default, MAV logs are located here:

**Windows OS:      C:\Users\\\<username>\Codex\MAV logs**

**Mac OS:               \<user-home>/Codex**

If log files are not present, MAV logging can be enabled by doing the following:

1\) Run **CODEX® MAV**

2\) From the menu bar, go to **Tools -> Preferences**

3\) Ensure that **File logging** is checked and Verbosity level is set on **Debug**

![](https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M8IRMDek7nyRjFEDauN%2F-M8IUYdp9CYLOs0EfBDN%2FMAV%20file%20logging.png?alt=media\&token=67d50770-9aef-4d93-8ab2-08f388e13a23)

## How do I update a FIJI plugin if it fails to update automatically?

Indications that a plugin has failed to update in FIJI include error messages such as those shown below.&#x20;

1. After clicking **Help -> Update** you may see the following:

![This indicates that your old plugin was not replaced with the new version.](https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M7YgmNrFxBXFRzodg1n%2F-M7YhRMeLfetjoAwtQb2%2Finstall%20error%20_%201.png?alt=media\&token=d1ff0f4b-2dc8-4436-a36f-5220489dc85f)

2\. **Delete** the conflicting versions. Once the conflicting versions are deleted, Click **OK.**

3\. Select **"Apply changes"** to update the software and then **restart FIJI.**

![](https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M7YinqPwFvXipRRVyM0%2F-M7Yisch82sJHI_xMgxT%2Finstall%20error%20_%202.2%20.png?alt=media\&token=7a791268-0859-44f4-b71b-039d2f6bb83a)

4\. When **FIJI restarts**, you may still see an error message.

![](https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M7YinqPwFvXipRRVyM0%2F-M7YjNAJK5vomdT_ov2L%2Finstall%20error%20_%203.png?alt=media\&token=cfeba49b-d8d7-48e7-b1ad-fc136d9ac09f)

5\. Click **OK** and **close FIJI**

6\.&#x20;
In Windows Explorer, navigate to the **FIJI-win64** folder and Open the **"plugins"** folder.

![](https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M7YinqPwFvXipRRVyM0%2F-M7Yjw3HgJlU6nja7suF%2Finstall%20error%20_%204.png?alt=media\&token=ae2d87d6-f1e8-49c2-94f2-4c1201546d33)

7\. **Delete** the old version of the plugin and **restart FIJI**

![](https://1268872846-files.gitbook.io/~/files/v0/b/gitbook-legacy-files/o/assets%2F-LWT7bo4Xbl2jOnmH1yB%2F-M7YkNVCzgoT9DfawGen%2F-M7Ykq7hNwHvB6yWbnRQ%2Finstall%20error%20_%206.png?alt=media\&token=d1e06a07-1bbc-474a-9217-947c40f151c1)

8\. Now, **launch** **CODEX MAV** as normal.