problem building jar file

[gitmalux]

Some problems were encountered while building the effective model for com.intelligt.modbus:jlibmodbus:jar:1.2.9.7
'dependencies.dependency.systemPath' for javax.comm:comm:jar should not point at files within the project directory, ${project.basedir}/lib/comm.jar will be unresolvable by dependent projects @ line 53, column 25
'dependencies.dependency.systemPath' for javax.comm:comm:jar refers to a non-existing file C:\Users\admin\Downloads\jlibmodbus\lib\comm.jar @ line 53, column 25

It is highly recommended to fix these problems because they threaten the stability of your build.

For this reason, future Maven versions might no longer support building such malformed projects.

Inspecting build with total of 1 modules...
Installing Nexus Staging features:
... total of 1 executions of maven-deploy-plugin replaced with nexus-staging-maven-plugin

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Building JLibModbus 1.2.9.7

The POM for com.google.android.things:androidthings:jar:0.8 is missing, no dependency information available

BUILD FAILURE

Total time: 1.161s
Finished at: Wed Oct 24 12:47:37 EEST 2018
Final Memory: 9M/155M

Failed to execute goal on project jlibmodbus: Could not resolve dependencies for project com.intelligt.modbus:jlibmodbus:jar:1.2.9.7: The following artifacts could not be resolved: javax.comm:comm:jar:2.0.3, com.google.android.things:androidthings:jar:0.8: Could not find artifact javax.comm:comm:jar:2.0.3 at specified path C:\Users\admin\Downloads\jlibmodbus\lib\comm.jar -> [Help 1]

To see the full stack trace of the errors, re-run Maven with the -e switch.
Re-run Maven using the -X switch to enable full debug logging.

For more information about the errors and possible solutions, please read the following articles:
[Help 1] http://cwiki.apache.org/confluence/display/MAVEN/DependencyResolutionException