[ERROR] E:\Program Files\Java\jre8\..\lib\tools.jar

1.error

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-compiler-plugin:2.3.2:compile (default-compile) on project gauges-android: Compilation failure
[ERROR] Unable to locate the Javac Compiler in:
[ERROR] E:\Program Files\Java\jre8\..\lib\tools.jar
[ERROR] Please ensure you are using JDK 1.4 or above and
[ERROR] not a JRE (the com.sun.tools.javac.Main class is required).
[ERROR] In most cases you can change the location of your Java
[ERROR] installation by setting the JAVA_HOME environment variable.
[ERROR] -> [Help 1]
[ERROR] 
[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.
[ERROR] Re-run Maven using the -X switch to enable full debug logging.
[ERROR] 
[ERROR] For more information about the errors and possible solutions, please read the following articles:
[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoFailureException

fixed 1:

eclipse –> windows –> Preferences, selected Installed Jres, click Edit,Add External JARS, select your jdkhome/lib/tools.jar

or fixed 2:

System environment variable:

CLASSPATH=.;%JAVA_HOME%\jre\lib\rt.jar;%JAVA_HOME%\lib\tools.jar