Resolve ranger-examples-distro module compile error

[PrivateLi]

When compile ranger with below command: mvn -DskipTests clean compile package install assembly:assembly Throws create assembly failed: [ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.6:single (default) on project ranger-examples-distro: Failed to create assembly: Error creating assembly archive sampleapp: You must set at least one file. -> [Help 1]

compile error.txt

[icycle77]

I wanted to say thanks for putting this out there @PrivateLi , I hit the exact same problem and your patch got me to a successful mvn package step.

I did see this note in the readme, looks like they don't take Github PRs yet.

[ognjen-it]

Why you don't merge it guys? It resolved my problem.

[vikaskumareinstein]

While trying to build the Apache Ranger 2.4.0 on Ubuntu 20.04, Using Java 1.8, I came across this issue. Not sure, whether this issue is related to maven or Ranger. It is failing on **Apache Ranger Distribution ** step. I am attaching the screenshot for reference.

[ERROR] Failed to execute goal org.apache.maven.plugins:maven-assembly-plugin:2.6:single (default) on project ranger-distro: Failed to create assem
bly: Error creating assembly archive schema-registry-plugin: Problem creating jar: jar:file:/home/swapnendu_b/apache-ranger-2.4.0/distro/target/ran
ger-distro-2.4.0.jar!/META-INF/maven/org.apache.ranger/ranger-distro/pom.properties: JAR entry META-INF/maven/org.apache.ranger/ranger-distro/pom.p
roperties not found in /home/swapnendu_b/apache-ranger-2.4.0/distro/target/ranger-distro-2.4.0.jar -> [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/MojoExecutionException
[ERROR] 
[ERROR] After correcting the problems, you can resume the build with the command
[ERROR]   mvn <args> -rf :ranger-distro

[shubhluck]

This is not an issue that needs to be merged, it happens when there is a mismatch in main Ranger version specified in ranger/pom.xml and distro/pom.xml or ranger-examples/pom.xml, this causes unable to identify right project parent directory causing file path or no such file exception issue.

[vikaskumareinstein]

Actually, I was getting this issue. I didn't mean to merge it. Thanks for the clarification though. Will try with your fix.