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Subject cant install - java error



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Rob
Post: Dec 29th 2006 at 5:51 PM

whenever i try to install tuxguitar 0.8 it gives an error - "The installer could not find a valid Java(tm) Runtime Environment in this machine." however, I have java 1.5.0.10 installed and it works with all of my other applications. I am running openSUSE 10.2.... anyone have any suggestions?


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Julian
Post: Dec 29th 2006 at 8:36 PM

Hi,
make sure java1.5 is at PATH... you can have more than 1 java installed in your system, but only 1 is at linux PATH... (some linux dists comes with GCJ as default)
type "java -version" in a console to see.


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Rob
Post: Dec 29th 2006 at 9:55 PM

hmm... ok so when i did java -version it showed up that i have 1.4.2 so... how can i get it to recognize 1.5?


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Julian
Post: Dec 30th 2006 at 10:56 AM

well,
you have the java 1.4 links at PATH (maybe /usr/bin)..
if you want have your java1.5 as default, you must replace the links...

Remove old links:
rm /usr/bin/jar
rm /usr/bin/java
# next links only if you have JDK
rm /usr/bin/javac
rm /usr/bin/javap
rm /usr/bin/javah

Make new links
ln -s JAVA_HOME/bin/jar /usr/bin/jar
ln -s JAVA_HOME/bin/java /usr/bin/java
# next links only if you have JDK
ln -s JAVA_HOME/bin/javac /usr/bin/javac
ln -s JAVA_HOME/bin/javap /usr/bin/javap
ln -s JAVA_HOME/bin/javah /usr/bin/javah

Do all of this as root user..
now you can type "java -version" to test..

Please, before do this, look at any suse forum...
maybe there is another way for opensuse..
(under ubuntu there is a "update-alternatives --config java" to make this work)

sorry my english..


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Hefeng
Post: May 22nd 2007 at 5:10 AM

Julian's answer is great!

maybe this is another method:

Remove old links:
unlink /usr/bin/jar
unlink /usr/bin/java
# next links only if you have JDK
unlink /usr/bin/javac
unlink /usr/bin/javap
unlink /usr/bin/javah

Make new links
ln -s JAVA_HOME/bin/jar /usr/bin/jar
ln -s JAVA_HOME/bin/java /usr/bin/java
# next links only if you have JDK
ln -s JAVA_HOME/bin/javac /usr/bin/javac
ln -s JAVA_HOME/bin/javap /usr/bin/javap
ln -s JAVA_HOME/bin/javah /usr/bin/javah


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hj
Post: Nov 4th 2007 at 10:06 AM

samething on windows xp


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