I recently attended the AAVSO datamining workshop to learn how to work with TESS data using Vstar. So far I have been unable to successfully run Vstar on my home PC (Windows 10) due to an issue with Java. I've had no problems using the program on my fiancé's MacOS.
the required software includes Anaconda (python), lightkurve (each installed sucesffully) and Vstar. I get an error message stating that a "fatal error had occurred" and the "Java virtual machine cannot launch." Ive installed the current version of Java (link on the Vstar page) from oracle, and tried uninstalling and reinstalling a few times. I've also turned off my firewall while installing as I thought it may be causing the issue. It doesn't seem to be the case. I've also tried running the program as administrator and a few other options after doing a google search for the error message. Has anyone else had this issue ?
Hi Zakery
Can you open a Windows command prompt and type:
java -version
and copy/paste the text you see?
David
Hey Dave, here's what I get
C:\Users\Zakery> java -version
Picked up _JAVA_OPTIONS: ûXmx512M
Unrecognized option: ûXmx512M
Error: Could not create the Java Virtual Machine.
Error: A fatal exception has occurred. Program will exit.
Thanks Zakery. That's weird.
Can you try this in a Windows command prompt?
echo %JAVA_OPTIONS%
set JAVA_OPTIONS=
VStar.exe
David
went I enter…
Hey Dave,
went I enter that into the cmd prompt I get
echo %JAVA_OPTIONS%
set JAVA_OPTIONS=
VStar.exe
is not recognized as an internal or external command,
operable program or batch file.