Pepper-lib assembly does not start properly

[MartinKl]

Building pepper lib with mvn clean install assembly:single does not result in a clean and properly starting pepper. This what happens instead:

The bundle 'org.apache.felix.scr-2.1.24' wasn't started correctly. The bundle is located at 'XXX/plugins/org.apache.felix.scr-2.1.24.jar'. This could cause other problems. For more details turn on log mode to debug and see log file. 
org.osgi.framework.BundleException: Could not resolve module: org.apache.felix.scr [19]
  Unresolved requirement: Import-Package: org.osgi.service.cm; version="[1.6.0,2.0.0)"; resolution:="optional"
  Unresolved requirement: Import-Package: org.apache.felix.service.command; version="[1.0.0,2.0.0)"; resolution:="optional"
  Unresolved requirement: Import-Package: org.osgi.util.promise; version="[1.0.0,2.0.0)"

	at org.eclipse.osgi.container.Module.start(Module.java:444)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:428)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:447)
	at org.corpus_tools.pepper.connectors.impl.PepperOSGiConnector.start(PepperOSGiConnector.java:655)
	at org.corpus_tools.pepper.connectors.impl.PepperOSGiConnector.startBundles(PepperOSGiConnector.java:688)
	at org.corpus_tools.pepper.connectors.impl.PepperOSGiConnector.init(PepperOSGiConnector.java:174)
	at org.corpus_tools.pepper.cli.PepperStarter.setPepper(PepperStarter.java:131)
	at org.corpus_tools.pepper.cli.PepperStarter.main(PepperStarter.java:1382)
The bundle 'org.apache.felix.scr-2.1.24' wasn't started correctly.
The bundle 'org.eclipse.equinox.ds-1.6.200.v20200422-1833' wasn't started correctly. The bundle is located at 'XXX/plugins/org.eclipse.equinox.ds-1.6.200.jar'. This could cause other problems. For more details turn on log mode to debug and see log file. 
org.osgi.framework.BundleException: Could not resolve module: org.eclipse.equinox.ds [55]
  Unresolved requirement: Import-Package: org.osgi.service.component; version="1.4.0"
    -> Export-Package: org.osgi.service.component; bundle-symbolic-name="org.apache.felix.scr"; bundle-version="2.1.24"; version="1.4.0"; uses:="org.osgi.framework"
       org.apache.felix.scr [19]
         Unresolved requirement: Import-Package: org.osgi.service.cm; version="[1.6.0,2.0.0)"; resolution:="optional"
         Unresolved requirement: Import-Package: org.apache.felix.service.command; version="[1.0.0,2.0.0)"; resolution:="optional"
         Unresolved requirement: Import-Package: org.osgi.util.promise; version="[1.0.0,2.0.0)"
  Unresolved requirement: Import-Package: org.osgi.service.component.runtime; version="1.4.0"
    -> Export-Package: org.osgi.service.component.runtime; bundle-symbolic-name="org.apache.felix.scr"; bundle-version="2.1.24"; version="1.4.0"; uses:="org.osgi.framework,org.osgi.service.component.runtime.dto,org.osgi.util.promise"

	at org.eclipse.osgi.container.Module.start(Module.java:444)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:428)
	at org.eclipse.osgi.internal.framework.EquinoxBundle.start(EquinoxBundle.java:447)
	at org.corpus_tools.pepper.connectors.impl.PepperOSGiConnector.start(PepperOSGiConnector.java:655)
	at org.corpus_tools.pepper.connectors.impl.PepperOSGiConnector.startBundles(PepperOSGiConnector.java:688)
	at org.corpus_tools.pepper.connectors.impl.PepperOSGiConnector.init(PepperOSGiConnector.java:174)
	at org.corpus_tools.pepper.cli.PepperStarter.setPepper(PepperStarter.java:131)
	at org.corpus_tools.pepper.cli.PepperStarter.main(PepperStarter.java:1382)
The bundle 'org.eclipse.equinox.ds-1.6.200.v20200422-1833' wasn't started correctly.
Configuring update mechanism ...
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