Unable to build Energia on Mac OS X

[rei-vilo]

I'm launching the build with

$ cd ~/GitHub/Energia/EnergiaNG/build
$ ant -buildfile build-energia.xml clean dist

The process fails with this error:

compile: [mkdir] Created dir: /Users/ReiVilo/GitHub/Energia/EnergiaNG/arduino-core/bin [javac] Compiling 139 source files to /Users/ReiVilo/GitHub/Energia/EnergiaNG/arduino-core/bin [javac] javac: invalid target release: 1.8 [javac] Usage: javac [javac] use -help for a list of possible options

BUILD FAILED /Users/ReiVilo/GitHub/Energia/EnergiaNG/build/build-energia.xml:115: The following error occurred while executing this line: /Users/ReiVilo/GitHub/Energia/EnergiaNG/build/build-energia.xml:92: The following error occurred while executing this line: /Users/ReiVilo/GitHub/Energia/EnergiaNG/build/build-energia.xml:139: The following error occurred while executing this line: /Users/ReiVilo/GitHub/Energia/EnergiaNG/arduino-core/build.xml:41: Compile failed; see the compiler error output for details.

More details:

$ java -version
java version "1.7.0_80"
Java(TM) SE Runtime Environment (build 1.7.0_80-b15)
Java HotSpot(TM) 64-Bit Server VM (build 24.80-b11, mixed mode)

$ ant -version
Apache Ant(TM) version 1.9.7 compiled on April 9 2016

[rei-vilo]

Looks like JDK 1.8 is compulsory, as well as sudo.

See http://www.oracle.com/technetwork/java/javase/downloads/jdk8-downloads-2133151.html

Correct command is sudo ant -buildfile build-energia.xml clean dist

[robertinant]

What triggered the need for executing with sudo? Can you paste the failure that you see when you build without sudo?

[rei-vilo]

Access to one file.

/Users/ReiVilo/GitHub/Energia/EnergiaNG/arduino-core/build.xml:12: Unable to delete file /Users/ReiVilo/GitHub/Energia/EnergiaNG/arduino-core/bin/cc/arduino/Compiler$1.class