Android Studio not working - tools.jar classpath error

Question

I have just downloaded the Android Studio and when I try to run ./studio.sh it gives me an error of

'tools.jar' seems to be not in Android Studio classpath. Please ensure JAVA_HOME points to JDK rather than JRE

I have checked /usr/lib/jvm/java-1.7.0-openjdk-amd64 this folder java is there and I have set the environment variables in

/etc/environment

as

JAVA_HOME="/usr/lib/jvm/java-1.7.0-openjdk-amd64/"

but still, the same error is coming, Please help me out,

after saving this file, if I check

echo $JAVA_HOME

nothing comes and when I try

source /etc/environment

it comes as

JAVA_HOME: command not found

How should I proceed?

try this link: How to setup Java-Home and Path in Ubuntu 12.04 — Lety, Jul 06 '14 at 15:33
still same error is coming, i have downloaded the Java version again from oracle webiste as suggested on the link, and install it and moved to lib/jvm, but same error. echo $JAVA_HOME is giving nothing.again.. — Amul Bhatia, Jul 06 '14 at 19:14
did you add PATH=$PATH:$JAVA_HOME/bin? could you post your /etc/environment file? — Lety, Jul 06 '14 at 19:51

score 9 · Accepted Answer · edited Jul 28 '15 at 08:11

9

I got the same error when trying to run the android-studio beta installation. I tried various options, but the one that worked for me was:

sudo apt-get install openjdk-7-jdk

Didn't have to do anything else.

But, I am surprised that

java -version

listed the same 3 lines before and after the jdk install:

java version "1.7.0_55"  
OpenJDK Runtime Environment (IcedTea 2.4.7) (7u55-2.4.7-1ubuntu1~0.13.10.1)  
OpenJDK 64-Bit Server VM (build 24.51-b03, mixed mode)

and

echo $JAVA_HOME

outputs blanks, but now the android-studio is running.

edited Jul 28 '15 at 08:11

A.B.

90,397

answered Aug 25 '14 at 11:32

Sri

1,662
2
20
39

wth :O ... it just worked... need nothing to do... just install open-jdk-7 – Saqib Aug 22 '16 at 18:04
ohh i had a doubt earlier... but i was wrong ... working flawlessly – sandeep_kosta Apr 28 '17 at 17:49

score 2 · Answer 2 · edited May 23 '17 at 12:39

2

Check the most liked answer. If java is already installed and want to change the priority then

update-alternatives --config java

edited May 23 '17 at 12:39

Community

1

answered May 27 '15 at 18:49

OmaL

271

score 0 · Answer 3 · edited May 23 '17 at 12:39

0

For me there was a problem with some certificates (seems to be a java bug).
I fixed it with the following (reference):

$ sudo dpkg --purge --force-depends ca-certificates-java
$ sudo apt-get install ca-certificates-java

edited May 23 '17 at 12:39

Community

1

answered Apr 10 '16 at 00:26

L31N

51

score 0 · Answer 4 · edited Jun 04 '16 at 20:53

0

I had a similar problem and I performed:

sudo apt-get install oracle-java8-set-default

Hope it helps!

edited Jun 04 '16 at 20:53

MadMike

4,244
8
28
50

answered Jun 04 '16 at 20:09

Micke

1

Android Studio not working - tools.jar classpath error

4 Answers4