'"java.exe"' is not recognized as an internal or external command,

ant, java

Solution

If you look at the "ant.bat" file, you will see that it looks for the "java" command in the following way:

- If the `%JAVACMD%` environment variable is set, then it uses that.

- Otherwise, if the `%JAVA_HOME%` environment variable is set, it tries to use `%JAVA_HOME%\bin\java.exe`

- Otherwise, it tries to use `java.exe`; i.e. it will look on your %PATH%.

In your case, you have `%JAVA_HOME%` set ... but set to the Java installation's "bin" directory, not to the root of the installation. So the `Ant.bat` script looks in the wrong place for `java.exe`.

Just set `%JAVA_HOME%` correctly, and it should work.

JAVA_HOME C:\Program Files\Java\jdk1.7.0_06

As you can see from the above, you do not need to have the Java "bin" directory on your `%PATH%` for Ant to work, but it is a good idea to set it anyway. That way you can run the Java commands simply from the command line.

The setting of `%CLASSPATH%` is not relevant to this problem. Indeed, unless the `build.xml` file is broken, Ant will ignore your `%CLASSPATH%` environment variable.

Problem

I have downloaded both Java jdk1.7.0_06 and Java jre7. and i added the following system variable `JAVA_HOME C:\Program Files\Java\jdk1.7.0_06\bin` to my windows 7. But when I type the following in the CMD command line on my windows 7 `C:\activiti-5.10\activiti-5.10\setup>ant demo.start` to run a demo application I got the following error in the command line ' "java.exe"' is not recognized as an internal or external command, operable program or batch file So does anyone know how i can solve this problem ? BR

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