RapidMiner uses older library than extension
Hi,
I am developing an extension that Encog, version 3.2.0. In RapidMiner_Unuk, some older version of Encog is used, so when I run my extension, it says:
Is there any way of making my extension using exactly the libraries it comes with?
Thank you,
Heiko
I am developing an extension that Encog, version 3.2.0. In RapidMiner_Unuk, some older version of Encog is used, so when I run my extension, it says:
Removing encog.jar from RapidMiner_Unuk resolves the problem, but that is of course not an option.
SEVERE: Process failed: org.encog.neural.networks.layers.BasicLayer.<init>(Lorg/encog/engine/network/activation/ActivationFunction;ZI)V
java.lang.NoSuchMethodError: org.encog.neural.networks.layers.BasicLayer.<init>(Lorg/encog/engine/network/activation/ActivationFunction;ZI)V
Is there any way of making my extension using exactly the libraries it comes with?
Thank you,
Heiko
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- get the source code of the library
- refactor the package names, e.g., from org.encog.* to org.encogx.*
- package a JAR with the refactored package names and use that one in the extension
Hi all,
just for the records, if anyone else runs into that problem. What solved the issue for me was:
Best,
Heiko
just for the records, if anyone else runs into that problem. What solved the issue for me was:
Best,
Heiko
Hi,
clever! However please make sure the license of the product in question actually allows such things if you ever want to make your extension publicly available.
Regards,
Marco
clever! However please make sure the license of the product in question actually allows such things if you ever want to make your extension publicly available.
Regards,
Marco
Hi,
after some investigation there would be a way to fix that. Studio uses the default "loadClass()" implementation from ClassLoader. Which tries to load from the root classloader first (i.e. the main classloader instead of the plugin one). We have created an internal issue to fix that.
Regards,
Marco
after some investigation there would be a way to fix that. Studio uses the default "loadClass()" implementation from ClassLoader. Which tries to load from the root classloader first (i.e. the main classloader instead of the plugin one). We have created an internal issue to fix that.
Regards,
Marco
R-extension id installed but when i open rapidminer it ask for the r-extension file and jri file for R-extension
I'm afraid this is not possible. The main classloader will grab the RapidMiner Studio library first and that's that for your extension :-\
Regards,
Marco