This post was flagged by the community and is temporarily hidden.
you have to be patient, because every user is not online every time.
Error is in your code, i got same error so you have to fix that,
BUILD FAILED
C:\Users\Imran\appinventor-sources\appinventor\build.xml:42: The following error occurred while executing this line:
C:\Users\Imran\appinventor-sources\appinventor\components\build.xml:193: The following error occurred while executing this line:
C:\Users\Imran\appinventor-sources\appinventor\build-common.xml:125: Compile failed; see the compiler error output for details.
follow this to see examples of code.
Be Patience,
check JDK version you have in system from Command Line
java -version
Check JAVA_HOME is set correctly of same version in environment variable of system.
where i have to use this link
in CMD Or in git bash
You should seriously follow this guide to correctly setup JDK:
Installing the JDK Software and Setting JAVA_HOME
Or watch this video:
One thing more, you should do some searching yourself before asking small questions. 
Google is your friend. 
2 Likes
This is system environment
Neither this
nor this
is error log.
Error log should be above this.
This is best way.
https://editor.appybuilder.com/
Make your extension and export without install any program