Fail to run 'sbt assembly' as in docs

[HigyedArnold]

Foolowing the play deploying section: https://www.playframework.com/documentation/2.8.x/Deploying the command 'sbt assembly' with the following errors:
[error] 1 error was encountered during merge
[error] java.lang.RuntimeException: deduplicate: different file contents found in the following:
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\org\joda\joda-convert\2.2.1\joda-convert-2.2.1.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\core\jackson-annotations\2.10.2\jackson-annotations-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\module\jackson-module-paranamer\2.10.2\jackson-module-paranamer-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\module\jackson-module-parameter-names\2.10.2\jackson-module-parameter-names-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.10.2\jackson-datatype-jdk8-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\core\jackson-databind\2.10.2\jackson-databind-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\dataformat\jackson-dataformat-cbor\2.10.2\jackson-dataformat-cbor-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.10.2\jackson-datatype-jsr310-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\jakarta\xml\bind\jakarta.xml.bind-api\2.3.2\jakarta.xml.bind-api-2.3.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\core\jackson-core\2.10.2\jackson-core-2.10.2.jar:module-info.class
[error] at sbtassembly.Assembly$.applyStrategies(Assembly.scala:141)
[error] at sbtassembly.Assembly$.x$1$lzycompute$1(Assembly.scala:25)
[error] at sbtassembly.Assembly$.x$1$1(Assembly.scala:23)
[error] at sbtassembly.Assembly$.stratMapping$lzycompute$1(Assembly.scala:23)
[error] at sbtassembly.Assembly$.stratMapping$1(Assembly.scala:23)
[error] at sbtassembly.Assembly$.inputs$lzycompute$1(Assembly.scala:67)
[error] at sbtassembly.Assembly$.inputs$1(Assembly.scala:57)
[error] at sbtassembly.Assembly$.apply(Assembly.scala:84)
[error] at sbtassembly.Assembly$.$anonfun$assemblyTask$1(Assembly.scala:249)
[error] at scala.Function1.$anonfun$compose$1(Function1.scala:49)
[error] at sbt.internal.util.$tilde$greater.$anonfun$$u2219$1(TypeFunctions.scala:62)
[error] at sbt.std.Transform$$anon$4.work(Transform.scala:67)
[error] at sbt.Execute.$anonfun$submit$2(Execute.scala:281)
[error] at sbt.internal.util.ErrorHandling$.wideConvert(ErrorHandling.scala:19)
[error] at sbt.Execute.work(Execute.scala:290)
[error] at sbt.Execute.$anonfun$submit$1(Execute.scala:281)
[error] at sbt.ConcurrentRestrictions$$anon$4.$anonfun$submitValid$1(ConcurrentRestrictions.scala:178)
[error] at sbt.CompletionService$$anon$2.call(CompletionService.scala:37)
[error] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] at java.util.concurrent.Executors$RunnableAdapter.call(Executors.java:511)
[error] at java.util.concurrent.FutureTask.run(FutureTask.java:266)
[error] at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
[error] at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
[error] at java.lang.Thread.run(Thread.java:748)
[error] (assembly) deduplicate: different file contents found in the following:
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\org\joda\joda-convert\2.2.1\joda-convert-2.2.1.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\core\jackson-annotations\2.10.2\jackson-annotations-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\module\jackson-module-paranamer\2.10.2\jackson-module-paranamer-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\module\jackson-module-parameter-names\2.10.2\jackson-module-parameter-names-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\datatype\jackson-datatype-jdk8\2.10.2\jackson-datatype-jdk8-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\core\jackson-databind\2.10.2\jackson-databind-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\dataformat\jackson-dataformat-cbor\2.10.2\jackson-dataformat-cbor-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\datatype\jackson-datatype-jsr310\2.10.2\jackson-datatype-jsr310-2.10.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\jakarta\xml\bind\jakarta.xml.bind-api\2.3.2\jakarta.xml.bind-api-2.3.2.jar:module-info.class
[error] C:\Users\arnold\AppData\Local\Coursier\cache\v1\https\repo1.maven.org\maven2\com\fasterxml\jackson\core\jackson-core\2.10.2\jackson-core-2.10.2.jar:module-info.class
[error] Total time: 20 s, completed Apr 6, 2020 4:17:36 PM

[HigyedArnold]

Solved:
I was working with a subproject, where I was importing play json. This was causing the conflict.