I try to create a new self certified keystore file

The command I use is:

keytool -genkey -selfcert -dname "cn=My Name, ou=Orga unit" -alias selfcertified -keypass somepass -keystore keystore.jks -storepass anotherpass -validity 365

but I always get this annoying error:

keytool error: java.lang.Exception: Keystore file does not exist: keystore.jks

I do not understand why I'm getting this error. The command above should create a new keystore, so why is it complaining about a non existing store?

java certificate keystore keytool
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