Make cannot find tools.jar

问题

Running Ubuntu 12.04

I have added to PATH: /home/jeffrey/jdk1.6.0_43/lib

I am attempting to build from source using Make:

make -j16

But encounter the error:

build/core/config.mk:268: *** Error: could not find jdk tools.jar, please install JDK6, which you can download from java.sun.com.  Stop.

Can anyone explain to me why Make cannot find tools.jar?

EDIT

JAVA_HOME=/home/jeffrey/jdk1.6.0_43/bin/java

Determined by entering env command into the shell. Furthermore, this is set for all users in the etc/profile

Additionally:

jeffrey@jeffrey-Satellite-M645:~/WORKING_DIRECTORY$ java -version
java version "1.6.0_43"
Java(TM) SE Runtime Environment (build 1.6.0_43-b01)
Java HotSpot(TM) 64-Bit Server VM (build 20.14-b01, mixed mode)
jeffrey@jeffrey-Satellite-M645:~/WORKING_DIRECTORY$ 

回答1:

Setting the ANDROID_JAVA_HOME environment variable to JDK path, fixes this error.

I found the answer with this SO post.

回答2:

Make sure that JAVA_HOME env variable is set to jdk-install-dir

回答3:

Usually, this is caused by javac is not configured as a alternative for system. So there is no link of /usr/bin/javac for your javac.

Please setup the alternative for javac using the following command:

$ sudo update-alternatives --install "/usr/bin/javac" "javac" "/usr/lib/jvm/jdk1.6.0_32/bin/javac" 1

note: the installed directory of javac for me is "/usr/lib/jvm/jdk1.6.0_32/", you can change it by your configuration.

来源：https://stackoverflow.com/questions/18277504/make-cannot-find-tools-jar