JVMNotFoundError: Can't find the Java Virtual Machine about python-weka-wrapper-examples HOT 4 CLOSED

Remove the "bin" from your JAVA_HOME environment variable. Only use the path to the JDK.

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I removed "bin" from my JAVA_HOME and only used the path to the JDK, but the problem doesn`t solved.

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I'm not a Windows user and setting up Python always seems to be riddled with issues... But I finally had some time setting up a Windows 10 instance... Here is what I did:

• no JAVA_HOME variable defined
• Location of java executable:

where java
C:\Program Files (x86)\Common Files\Oracle\Java\javapath\java.exe
C:\ProgramData\Oracle\Java\javapath\java.exe

• Java version installed:

java -version
java version "1.8.0_171"
Java(TM) SE Runtime Environment (build 1.8.0_171-b11)
Java HotSpot(TM) 64-Bit Server VM (build 25.171-b11, mixed mode)

• VC++ compiler for Python 2.7 (for compiling javabridge)

  http://aka.ms/vcpython27

• Anaconda for Python 2.7 (4.3.0.1)

  https://repo.continuum.io/archive/Anaconda2-4.3.0.1-Windows-x86_64.exe

• value of PATH after installing anaconda:

C:\Program Files (x86)\Common Files\Oracle\Java\javapath;C:\ProgramData\Oracle\Java\javapath;C:\WINDOWS\system32;C:\WINDOWS;C:\WINDOWS\System32\Wbem;C:\WINDOWS\System32\WindowsPowerShell\v1.0\;C:\WINDOWS\System32\OpenSSH\;C:\Anaconda2;C:\Anaconda2\Scripts;C:\Anaconda2\Library\bin;C:\Users\fracpete\AppData\Local\Microsoft\WindowsApps;

• create anaconda environment for pww (numpy needs to be installed through anaconda):

conda create -n py27-pww numpy

• activate environment:

activate py27-pww

• installing pww:

pip install python-weka-wrapper

• testing pww:

python
import weka.core.jvm as jvm
jvm.start()
from weka.classifiers import Classifeir
cls = Classifier(classname="weka.classifiers.trees.J48")
print(cls)
jvm.stop()

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Solved according to this stackoverflow post.

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