# Java version compatibility

**URL:** <https://forum.inductiveautomation.com/t/java-version-compatibility/87826>\
**Category:** Ignition\
**Created:** [March 25, 2024, 11:22am UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826 "2024-03-25T11:22:08Z")\
**Posts on this page:** 6\
**Page:** 1

<div class="post-metadata">

**Author:** ![Alejandro\_Alaco](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/alejandro_alaco/32/59849_2.png) [@Alejandro\_Alaco](https://forum.inductiveautomation.com/u/Alejandro_Alaco)\
**Post date:** [March 25, 2024, 11:22am UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826/1 "2024-03-25T11:22:08Z")

</div>

Hello, I am using Ignition 7.9.10 in a machine, I updated Java in the machine. but when I did it, I can´t open the Ignition proyects anymore because Jva 1.7 is required  
pdate System Path:  
 ![image](https://us1.discourse-cdn.com/inductiveautomation/original/3X/f/6/f69bfa8d8087d71774dc01f1c88474a9d024ec45.png)

Anibody knows a fix for this?

---

<div class="post-metadata">

**Author:** ![JordanCClark](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/jordancclark/32/83362_2.png) [@JordanCClark](https://forum.inductiveautomation.com/u/JordanCClark)\
**Post date:** [March 25, 2024, 11:38am UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826/2 "2024-03-25T11:38:54Z")

</div>

Check the allowed JREs setting in the gateway.

> **[Gateway Setup | Ignition User Manual](https://www.docs.inductiveautomation.com/docs/7.9/gateway/gateway-settings/gateway-setup#web-launch-settings-1)**
>
> Important Gateway Settings

---

<div class="post-metadata">

**Author:** ![Alejandro\_Alaco](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/alejandro_alaco/32/59849_2.png) [@Alejandro\_Alaco](https://forum.inductiveautomation.com/u/Alejandro_Alaco)\
**Post date:** [March 25, 2024, 11:41am UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826/3 "2024-03-25T11:41:06Z")

</div>

> **[Setting Java Path Video at Inductive University](https://inductiveuniversity.com/videos/setting-java-path/7.9)**
>
> The Mobile Clients use Java from the Gateway computer. Set which Java is used in the Configure section of the Gateway. The mobile Clients require a Java 8 installation even if the other Clients are using an older version.

---

<div class="post-metadata">

**Author:** ![Alejandro\_Alaco](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/alejandro_alaco/32/59849_2.png) [@Alejandro\_Alaco](https://forum.inductiveautomation.com/u/Alejandro_Alaco)\
**Post date:** [March 25, 2024, 11:41am UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826/4 "2024-03-25T11:41:56Z")

</div>

Thanks, must be something else.

---

<div class="post-metadata">

**Author:** ![pturmel](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/pturmel/32/3295_2.png) [@pturmel](https://forum.inductiveautomation.com/u/pturmel)\
**Post date:** [March 25, 2024, 11:43am UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826/5 "2024-03-25T11:43:02Z")

</div>

Re-install java 7.

If you want to continue running unsupported old software, don't install any update that will break it.

Even better would be to upgrade to v8.1. Many bugs and security issues have been fixed in 8.1 that have not been fixed in EOL v7.9.

---

<div class="post-metadata">

**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\
**Post date:** [March 25, 2024, 1:07pm UTC](https://forum.inductiveautomation.com/t/java-version-compatibility/87826/6 "2024-03-25T13:07:43Z")

</div>

Did you download the JNLP file again after changing that setting?