io.sentry.SentryClientFactory - Error creating valid DSN from: 'https://public:private@host:port/1'

I am new to Sentry followed this

and this

and followed the same steps and the code I have an sbt project in which I created sentry.properties file its contents are

dsn=https://public:private@host:port/1

and placed it under src/main/resources when the code runs (the same code given the link above ) following exception is thrown'

18:19:26.745 [run-main-1] DEBUG io.sentry.config.Lookup - Found dsn=https://public:private@host:port/1 in sentry.properties.
18:19:26.754 [run-main-1] ERROR io.sentry.SentryClientFactory - Error creating valid DSN from: 'https://public:private@host:port/1'.
io.sentry.dsn.InvalidDsnException: Invalid DSN, the following properties aren't set '[host, public key]'
    at io.sentry.dsn.Dsn.validate(Dsn.java:209) ~[sentry-1.7.16.jar:na]
    at io.sentry.dsn.Dsn.<init>(Dsn.java:66) ~[sentry-1.7.16.jar:na]
    at io.sentry.dsn.Dsn.<init>(Dsn.java:41) ~[sentry-1.7.16.jar:na]
    at io.sentry.SentryClientFactory.resolveDsn(SentryClientFactory.java:73) [sentry-1.7.16.jar:na]
    at io.sentry.SentryClientFactory.sentryClient(SentryClientFactory.java:42) [sentry-1.7.16.jar:na]
    at io.sentry.Sentry.init(Sentry.java:81) [sentry-1.7.16.jar:na]
    at io.sentry.Sentry.init(Sentry.java:44) [sentry-1.7.16.jar:na]
    at sentry.SentryDemo$.main(SentryDemo.scala:16) [classes/:na]
    at sentry.SentryDemo.main(SentryDemo.scala) [classes/:na]
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[na:1.8.0_181]
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[na:1.8.0_181]
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[na:1.8.0_181]
    at java.lang.reflect.Method.invoke(Method.java:498) ~[na:1.8.0_181]
    at sbt.Run.invokeMain(Run.scala:67) [run-0.13.16.jar:0.13.16]
    at sbt.Run.run0(Run.scala:61) [run-0.13.16.jar:0.13.16]
    at sbt.Run.sbt$Run$$execute$1(Run.scala:51) [run-0.13.16.jar:0.13.16]
    at sbt.Run$$anonfun$run$1.apply$mcV$sp(Run.scala:55) [run-0.13.16.jar:0.13.16]
    at sbt.Run$$anonfun$run$1.apply(Run.scala:55) [run-0.13.16.jar:0.13.16]
    at sbt.Run$$anonfun$run$1.apply(Run.scala:55) [run-0.13.16.jar:0.13.16]
    at sbt.Logger$$anon$4.apply(Logger.scala:84) [logging-0.13.16.jar:0.13.16]
    at sbt.TrapExit$App.run(TrapExit.scala:248) [run-0.13.16.jar:0.13.16]
    at java.lang.Thread.run(Thread.java:748) [na:1.8.0_181]
[error] (run-main-1) io.sentry.dsn.InvalidDsnException: Invalid DSN, the following properties aren't set '[host, public key]'
io.sentry.dsn.InvalidDsnException: Invalid DSN, the following properties aren't set '[host, public key]'
    at io.sentry.dsn.Dsn.validate(Dsn.java:209)
    at io.sentry.dsn.Dsn.<init>(Dsn.java:66)
    at io.sentry.dsn.Dsn.<init>(Dsn.java:41)
    at io.sentry.SentryClientFactory.resolveDsn(SentryClientFactory.java:73)
    at io.sentry.SentryClientFactory.sentryClient(SentryClientFactory.java:42)
    at io.sentry.Sentry.init(Sentry.java:81)
    at io.sentry.Sentry.init(Sentry.java:44)
    at sentry.SentryDemo$.main(SentryDemo.scala:16)
    at sentry.SentryDemo.main(SentryDemo.scala)
    at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
    at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
    at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
    at java.lang.reflect.Method.invoke(Method.java:498)

Is there anything I need to add in place of dsnin the properties file ? i am using sentry in my project which is not a web based project