---
title: "Java error installing Calc 2.0-a13-Windows"
url: "https://openforis.support/questions/1697/java-error-installing-calc-20-a13-windows"
tags: ["calc"]
status: "answered"
score: 0
answer_count: 1
asked: "2018-03-13T15:40:33"
last_activity: "2018-03-15T14:44:48"
source: "Open Foris Support - Q&A Forum"
license: "Copyright Open Foris, 2026. Some rights reserved under creative commons license."
---

# Java error installing Calc 2.0-a13-Windows

Asked by AnibalC on 2018-03-13

I keep having the following error despite last version of Java was installed. Any idea of which is the problem? Thanks
---------------------------
Error
---------------------------
There has been an error.
The installer could not find a valid Java(tm)
on this machine.

Supported versions:
Vendor : Any  min. 1.8 max. any JDK required

---------------------------
Aceptar   
---------------------------


## Answer (score 0, by Mino Togna on 2018-03-15)

Link: https://openforis.support/questions/1697/java-error-installing-calc-20-a13-windows/1702

Hello, 

Before installing Calc, Please make sure you install **JDK** and not JRE.

if you need more info let me know. 

Thank you
Mino