project helloworld: Cannot get Web App list due to error: No available subscription found in current account.. -> [Help 1]

Hello Team,
I am getting below error while am Configure the Maven plugin in free tier account.
Command: mvn com.microsoft.azure:azure-webapp-maven-plugin:1.12.0:config
Error: -
[ERROR] Failed to execute goal com.microsoft.azure:azure-webapp-maven-plugin:1.12.0:config (default-cli) on project helloworld: Cannot get Web App list due to error: No available subscription found in current account.. -> [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