Cannot create protodef Person instance

[beatlevic]

I followed the Person example and failed to create a protobuf instance. I'm running on OSX Mavericks.

lein --version
Leiningen 2.3.4 on Java 1.7.0_55 Java HotSpot(TM) 64-Bit Server VM

I have the following project.clj:

(defproject my-project "0.1.0-SNAPSHOT"
  :description "FIXME: write description"
  :url "http://example.com/FIXME"
  :license {:name "Eclipse Public License"
            :url "http://www.eclipse.org/legal/epl-v10.html"}
  :dependencies [[org.clojure/clojure "1.7.0-RC1"]
                 [org.flatland/protobuf "0.7.1"]
                 [org.clojure/data.codec "0.1.0"]]
  :main ^:skip-aot my-project.core
  :target-path "target/%s"
  :profiles {:uberjar {:aot :all}}
  :global-vars {*print-length* 100}
  :plugins [[lein-protobuf "0.4.3"]]
  :resource-paths ["resources/protobuf-java-2.6.1.jar"])

As you can see I installed protobuf 2.6.1 manually and included the jar in the resource-path.

I use the following person.proto file in resources/proto:

message Person {
  required int32  id    = 1;
  required string name  = 2;
  optional string email = 3;
  repeated string likes = 4;
}

Running "lein protobuf" works and correctly creates PersonOuterClass.java in the target/protosrc

Loading the namespace also works:

(ns my-project.proto
  (:use flatland.protobuf.core)
  (:import PersonOuterClass$Person))

Next up in the cider-repl (0.9.0):

(def Person (protodef PersonOuterClass$Person)); => #'my-project.proto/Person

And then the error when:

(def p (protobuf Person :id 4 :name "Bob" :email "[email protected]"))

CompilerException java.lang.NoSuchMethodError: com.google.protobuf.DescriptorProtos$FieldOptions.getExtension(Lcom/google/protobuf/GeneratedMessage$GeneratedExtension;)Ljava/lang/Object;, compiling:(form-init5554068261882864915.clj:1:8) 

More details:

2. Unhandled clojure.lang.Compiler$CompilerException
   Error compiling: form-init5554068261882864915.clj:1:8

                 Compiler.java: 3628  clojure.lang.Compiler$InvokeExpr/eval
                 Compiler.java:  439  clojure.lang.Compiler$DefExpr/eval
                 Compiler.java: 6797  clojure.lang.Compiler/eval
                 Compiler.java: 6755  clojure.lang.Compiler/eval
                      core.clj: 3079  clojure.core/eval
                      main.clj:  240  clojure.main/repl/read-eval-print/fn
                      main.clj:  240  clojure.main/repl/read-eval-print
                      main.clj:  258  clojure.main/repl/fn
                      main.clj:  258  clojure.main/repl
                   RestFn.java: 1523  clojure.lang.RestFn/invoke
        interruptible_eval.clj:   58  clojure.tools.nrepl.middleware.interruptible-eval/evaluate/fn
                      AFn.java:  152  clojure.lang.AFn/applyToHelper
                      AFn.java:  144  clojure.lang.AFn/applyTo
                      core.clj:  628  clojure.core/apply
                      core.clj: 1866  clojure.core/with-bindings*
                   RestFn.java:  425  clojure.lang.RestFn/invoke
        interruptible_eval.clj:   56  clojure.tools.nrepl.middleware.interruptible-eval/evaluate
        interruptible_eval.clj:  188  clojure.tools.nrepl.middleware.interruptible-eval/interruptible-eval/fn/fn
        interruptible_eval.clj:  157  clojure.tools.nrepl.middleware.interruptible-eval/run-next/fn
                      AFn.java:   22  clojure.lang.AFn/run
       ThreadPoolExecutor.java: 1145  java.util.concurrent.ThreadPoolExecutor/runWorker
       ThreadPoolExecutor.java:  615  java.util.concurrent.ThreadPoolExecutor$Worker/run
                   Thread.java:  745  java.lang.Thread/run

1. Caused by java.lang.NoSuchMethodError
   com.google.protobuf.DescriptorProtos$FieldOptions.getExtension(Lcom/google/protobuf/GeneratedMessage$GeneratedExtension;)Ljava/lang/Object;

PersistentProtocolBufferMap.java:  581  flatland.protobuf.PersistentProtocolBufferMap/addField
PersistentProtocolBufferMap.java:  735  flatland.protobuf.PersistentProtocolBufferMap/cons
PersistentProtocolBufferMap.java:  286  flatland.protobuf.PersistentProtocolBufferMap/construct
                      core.clj:   46  flatland.protobuf.core/protobuf
                   RestFn.java:  146  clojure.lang.RestFn/applyTo
                 Compiler.java: 3623  clojure.lang.Compiler$InvokeExpr/eval
                 Compiler.java:  439  clojure.lang.Compiler$DefExpr/eval
                 Compiler.java: 6797  clojure.lang.Compiler/eval
                 Compiler.java: 6755  clojure.lang.Compiler/eval
                      core.clj: 3079  clojure.core/eval
                      main.clj:  240  clojure.main/repl/read-eval-print/fn
                      main.clj:  240  clojure.main/repl/read-eval-print
                      main.clj:  258  clojure.main/repl/fn
                      main.clj:  258  clojure.main/repl
                   RestFn.java: 1523  clojure.lang.RestFn/invoke
        interruptible_eval.clj:   58  clojure.tools.nrepl.middleware.interruptible-eval/evaluate/fn
                      AFn.java:  152  clojure.lang.AFn/applyToHelper
                      AFn.java:  144  clojure.lang.AFn/applyTo
                      core.clj:  628  clojure.core/apply
                      core.clj: 1866  clojure.core/with-bindings*
                   RestFn.java:  425  clojure.lang.RestFn/invoke
        interruptible_eval.clj:   56  clojure.tools.nrepl.middleware.interruptible-eval/evaluate
        interruptible_eval.clj:  188  clojure.tools.nrepl.middleware.interruptible-eval/interruptible-eval/fn/fn
        interruptible_eval.clj:  157  clojure.tools.nrepl.middleware.interruptible-eval/run-next/fn
                      AFn.java:   22  clojure.lang.AFn/run
       ThreadPoolExecutor.java: 1145  java.util.concurrent.ThreadPoolExecutor/runWorker
       ThreadPoolExecutor.java:  615  java.util.concurrent.ThreadPoolExecutor$Worker/run
                   Thread.java:  745  java.lang.Thread/run

I also get the same error when I drop the "repeated string likes" from the Person.proto.

Any idea what is causing this?

[quan-nh]

this may help http://stackoverflow.com/questions/11697572/protobuf-java-code-has-build-errors

[shengdoushi]

how to solve this problem ??? i also place protobuf java-files into my project, but it not works :

protoc --java_out=src/main/java -I../src ../src/google/protobuf/descriptor.proto

then copy java-files to my project src-ivm directory:

:java-source-paths ["src-jvm"]

src-jvm/com/google/....

[shengdoushi]

I solved!!!
Please use correct version:

org.flatland/protobuf "0.8.2-SNAPSHOT"
com.google.protobuf/protobuf-java "2.5.0"

lein-protobuf "0.4.1"

That's all!