OsmosisRuntimeException: Task type "mapfile-writer" already exists.

[thbriolo]

I've been trying to filter .OSM data as a part of SciGRID on MacOS v. 11.6. I'm a beginner in terminal commands though. Every time I'm trying to run osmosis in terminal I get the following error:

Okt. 31, 2021 12:32:50 PM org.openstreetmap.osmosis.core.Osmosis run
INFORMATION: Osmosis Version 0.48.3
Okt. 31, 2021 12:32:50 PM org.openstreetmap.osmosis.core.Osmosis main
SCHWERWIEGEND: Execution aborted.
org.openstreetmap.osmosis.core.OsmosisRuntimeException: Task type "mapfile-writer" already exists.
    at org.openstreetmap.osmosis.core.pipeline.common.TaskManagerFactoryRegister.register(TaskManagerFactoryRegister.java:44)
    at org.openstreetmap.osmosis.core.TaskRegistrar.loadPluginClass(TaskRegistrar.java:363)
    at org.openstreetmap.osmosis.core.TaskRegistrar.loadPlugin(TaskRegistrar.java:319)
    at org.openstreetmap.osmosis.core.TaskRegistrar.loadBuiltInPlugins(TaskRegistrar.java:135)
    at org.openstreetmap.osmosis.core.TaskRegistrar.initialize(TaskRegistrar.java:80)
    at org.openstreetmap.osmosis.core.Osmosis.run(Osmosis.java:81)
    at org.openstreetmap.osmosis.core.Osmosis.main(Osmosis.java:37)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:77)
    at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.base/java.lang.reflect.Method.invoke(Method.java:568)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launchStandard(Launcher.java:330)
    at org.codehaus.plexus.classworlds.launcher.Launcher.launch(Launcher.java:238)
    at org.codehaus.plexus.classworlds.launcher.Launcher.mainWithExitCode(Launcher.java:415)
    at org.codehaus.plexus.classworlds.launcher.Launcher.main(Launcher.java:356)
    at org.codehaus.classworlds.Launcher.main(Launcher.java:47)

I've downloaded osmosis via Homebrew and tried following solutions like adding jar files to the /lib/default folder. But nothing seems to work and I don't quite understand the error message or the need/use of mapfile-writer or mapsforge. I'm trying to run the basic command:

osmosis --read-pbf file="path"
Any help is appreciated.