BEAST apps don't launch on Windows 10 about beast2 HOT 4 CLOSED

@ms609 glad to see the starting problem is solved.
Please, do report problems you observe when teaching.

from beast2.

@ms609 A jre is included with the BEAST distribution, and the exe files are set up to pick up that jre. Any other jre installed should be ignored by BEAST.

Renaming the jre folder makes that the exe file cannot find the jre included with BEAST, and the default jre is used. This is not recommended, since BEAST relies on JavaFX without using modules, and several jre specific hoops need to be sprung to make that work.

I am curious to what the problem can be, so perhaps you can provide the following information:
Does .\bat\BEAST.bat -version give any output?
Which folder did you install BEAST?
The package folder should be in C:\Users\<yourname>\BEAST where <yourname> is your user name. Does that folder exists? Does it contain a 2.7 subdirectory, with BEAST.app and BEAST.base inside?

from beast2.

Hi @rbouckaert , thanks for picking this up. I've restored the jre folder.

Answers below:

Does .\bat\BEAST.bat -version give any output?

> .\bat\BEAST.bat -version
java.lang.ClassNotFoundException: beastfx.app.beast.BeastMain
        at java.base/java.net.URLClassLoader.findClass(Unknown Source)
        at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
        at java.base/java.lang.ClassLoader.loadClass(Unknown Source)
        at java.base/java.lang.Class.forName0(Native Method)
        at java.base/java.lang.Class.forName(Unknown Source)
        at beast.pkgmgmt.BEASTClassLoader.forName(Unknown Source)
        at beast.pkgmgmt.launcher.BeastLauncher.run(Unknown Source)
        at beast.pkgmgmt.launcher.BeastLauncher.main(Unknown Source)

Which folder did you install BEAST?

C:\Programs\Phylogeny\BEAST

The package folder should be in C:\Users\<yourname>\BEAST where <yourname> is your user name. Does that folder exists? Does it contain a 2.7 subdirectory, with BEAST.app and BEAST.base inside?

Yes

I wonder whether it's relevant that I once built BEAST from source, elsewhere on the machine. I hadn't thought that this would overlap with a clean install of BEAST, but perhaps if they are both looking in a common folder in my Users directory there might be some interaction..?

from beast2.

Ahha! I deleted the C:\Users\<yourname>\BEAST folder and BEAST launched successfully. There must have been a conflict with the preexisting files. Thanks very much for the pointer!

from beast2.