hi there I am trying to use the sampled piano and for some reason I get this exception. Im not sure what im doing wrong

Syntax error compiling at (overtone/inst/sampled_piano.clj:1:1).
; namespace 'overtone.samples.piano' not found
[{:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5867" :fn "throw-if"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5953" :fn "load-lib"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5928" :fn "load-lib"  :method "doInvoke" :flags [:clj]}
 {:file "RestFn.java" :line 142 :method "applyTo" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:667" :fn "apply"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5985" :fn "load-libs"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5969" :fn "load-libs"  :method "doInvoke" :flags [:clj]}
 {:file "RestFn.java" :line 137 :method "applyTo" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:669" :fn "apply"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6093" :fn "use"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6093" :fn "use"  :method "doInvoke" :flags [:dup :clj]}
 {:file "RestFn.java" :line 421 :method "invoke" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/overtone/overtone/0.10.6/overtone-0.10.6.jar!/overtone/inst/sampled_piano.clj:1" :fn "eval28086/loading--auto--"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/overtone/overtone/0.10.6/overtone-0.10.6.jar!/overtone/inst/sampled_piano.clj:1" :fn "eval28086"  :method "invokeStatic" :flags [:dup :clj]}
 {:file "jar:file:/home/rohit/.m2/repository/overtone/overtone/0.10.6/overtone-0.10.6.jar!/overtone/inst/sampled_piano.clj:1" :fn "eval28086"  :method "invoke" :flags [:dup :clj]}
 {:file "Compiler.java" :line 7177 :method "eval" :flags [:tooling :java]}
 {:file "Compiler.java" :line 7166 :method "eval" :flags [:dup :tooling :java]}
 {:file "Compiler.java" :line 7636 :method "load" :flags [:tooling :java]}
 {:file "RT.java" :line 381 :method "loadResourceScript" :flags [:java]}
 {:file "RT.java" :line 372 :method "loadResourceScript" :flags [:dup :java]}
 {:file "RT.java" :line 459 :method "load" :flags [:java]}
 {:file "RT.java" :line 424 :method "load" :flags [:dup :java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6126" :fn "load/fn"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6125" :fn "load"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6109" :fn "load"  :method "doInvoke" :flags [:clj]}
 {:file "RestFn.java" :line 408 :method "invoke" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5908" :fn "load-one"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5903" :fn "load-one"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5948" :fn "load-lib/fn"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5947" :fn "load-lib"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5928" :fn "load-lib"  :method "doInvoke" :flags [:clj]}
 {:file "RestFn.java" :line 142 :method "applyTo" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:667" :fn "apply"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5985" :fn "load-libs"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:5969" :fn "load-libs"  :method "doInvoke" :flags [:clj]}
 {:file "RestFn.java" :line 137 :method "applyTo" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:669" :fn "apply"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6093" :fn "use"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:6093" :fn "use"  :method "doInvoke" :flags [:dup :clj]}
 {:file "RestFn.java" :line 408 :method "invoke" :flags [:java]}
 {:file "NO_SOURCE_FILE" :line 31 :fn "eval28082"  :method "invokeStatic" :flags [:project :repl :clj]}
 {:file "NO_SOURCE_FILE" :line 31 :fn "eval28082"  :method "invoke" :flags [:dup :project :repl :clj]}
 {:file "Compiler.java" :line 7177 :method "eval" :flags [:tooling :java]}
 {:file "Compiler.java" :line 7132 :method "eval" :flags [:dup :tooling :java]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:3214" :fn "eval"  :method "invokeStatic" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/core.clj:3210" :fn "eval"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/main.clj:437" :fn "repl/read-eval-print/fn"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/main.clj:437" :fn "repl/read-eval-print"  :method "invoke" :flags [:dup :clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/main.clj:458" :fn "repl/fn"  :method "invoke" :flags [:clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/main.clj:458" :fn "repl"  :method "invokeStatic" :flags [:dup :clj]}
 {:file "jar:file:/home/rohit/.m2/repository/org/clojure/clojure/1.10.1/clojure-1.10.1.jar!/clojure/main.clj:368" :fn "repl"  :method "doInvoke" :flags [:clj]}
 {:file "RestFn.java" :line 1523 :method "invoke" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/nrepl/nrepl/0.6.0/nrepl-0.6.0.jar!/nrepl/middleware/interruptible_eval.clj:79" :fn "evaluate"  :method "invokeStatic" :flags [:tooling :clj]}
 {:file "jar:file:/home/rohit/.m2/repository/nrepl/nrepl/0.6.0/nrepl-0.6.0.jar!/nrepl/middleware/interruptible_eval.clj:55" :fn "evaluate"  :method "invoke" :flags [:tooling :clj]}
 {:file "jar:file:/home/rohit/.m2/repository/nrepl/nrepl/0.6.0/nrepl-0.6.0.jar!/nrepl/middleware/interruptible_eval.clj:142" :fn "interruptible-eval/fn/fn"  :method "invoke" :flags [:tooling :clj]}
 {:file "AFn.java" :line 22 :method "run" :flags [:java]}
 {:file "jar:file:/home/rohit/.m2/repository/nrepl/nrepl/0.6.0/nrepl-0.6.0.jar!/nrepl/middleware/session.clj:171" :fn "session-exec/main-loop/fn"  :method "invoke" :flags [:tooling :clj]}
 {:file "jar:file:/home/rohit/.m2/repository/nrepl/nrepl/0.6.0/nrepl-0.6.0.jar!/nrepl/middleware/session.clj:170" :fn "session-exec/main-loop"  :method "invoke" :flags [:tooling :clj]}
 {:file "AFn.java" :line 22 :method "run" :flags [:java]}
 {:file "Thread.java" :line 748 :method "run" :flags [:java]}]

I did this (use 'overtone.inst.sampled-piano)

What does your configuration and code look like?