I am sure I am running version 3.0.0 This is my mvn dependencies :
[INFO] Scanning for projects... [INFO] ------------------------------------------------------------------------ [INFO] Detecting the operating system and CPU architecture [INFO] ------------------------------------------------------------------------ [INFO] os.detected.name: osx [INFO] os.detected.arch: x86_64 [INFO] os.detected.classifier: osx-x86_64 [INFO] [INFO] ------------------------------------------------------------------------ [INFO] Building destiny-identity 0.0.1 [INFO] ------------------------------------------------------------------------ [INFO] [INFO] --- maven-dependency-plugin:2.10:tree (default-cli) @ destiny-identity --- [WARNING] Using Maven 2 dependency tree to get verbose output, which may be inconsistent with actual Maven 3 resolution [INFO] artifact io.netty:netty-codec-http2: checking for updates from nexus [INFO] artifact io.netty:netty-codec-http2: checking for updates from spring-snapshots [INFO] artifact io.netty:netty-codec-http2: checking for updates from spring-milestones [INFO] artifact io.netty:netty-codec-http2: checking for updates from central [INFO] artifact io.grpc:grpc-core: checking for updates from nexus [INFO] artifact io.grpc:grpc-core: checking for updates from spring-snapshots [INFO] artifact io.grpc:grpc-core: checking for updates from spring-milestones [INFO] artifact io.grpc:grpc-core: checking for updates from central [INFO] destiny:destiny-identity:jar:0.0.1 [INFO] +- io.grpc:grpc-netty:jar:1.0.0:compile [INFO] | +- io.netty:netty-codec-http2:jar:4.1.3.Final:compile [INFO] | | +- io.netty:netty-codec-http:jar:4.1.3.Final:compile [INFO] | | | \- io.netty:netty-codec:jar:4.1.3.Final:compile [INFO] | | | \- (io.netty:netty-transport:jar:4.1.3.Final:compile - omitted for duplicate) [INFO] | | \- io.netty:netty-handler:jar:4.1.3.Final:compile [INFO] | | +- io.netty:netty-buffer:jar:4.1.3.Final:compile [INFO] | | | \- io.netty:netty-common:jar:4.1.3.Final:compile [INFO] | | +- io.netty:netty-transport:jar:4.1.3.Final:compile [INFO] | | | +- (io.netty:netty-buffer:jar:4.1.3.Final:compile - omitted for duplicate) [INFO] | | | \- io.netty:netty-resolver:jar:4.1.3.Final:compile [INFO] | | | \- (io.netty:netty-common:jar:4.1.3.Final:compile - omitted for duplicate) [INFO] | | \- (io.netty:netty-codec:jar:4.1.3.Final:compile - omitted for duplicate) [INFO] | \- io.grpc:grpc-core:jar:1.0.0:compile [INFO] | +- (com.google.guava:guava:jar:19.0:compile - omitted for duplicate) [INFO] | \- com.google.code.findbugs:jsr305:jar:3.0.0:compile [INFO] +- io.grpc:grpc-protobuf:jar:1.0.0:compile [INFO] | +- com.google.guava:guava:jar:19.0:compile [INFO] | +- io.grpc:grpc-protobuf-lite:jar:1.0.0:compile [INFO] | | +- (com.google.guava:guava:jar:19.0:compile - omitted for duplicate) [INFO] | | \- (io.grpc:grpc-core:jar:1.0.0:compile - omitted for duplicate) [INFO] | +- com.google.protobuf:protobuf-java:jar:3.0.0:compile [INFO] | +- com.google.protobuf:protobuf-java-util:jar:3.0.0:compile [INFO] | | +- (com.google.protobuf:protobuf-java:jar:3.0.0:compile - omitted for duplicate) [INFO] | | +- (com.google.guava:guava:jar:18.0:compile - omitted for conflict with 19.0) [INFO] | | \- com.google.code.gson:gson:jar:2.7:compile (version managed from 2.3) [INFO] | \- (io.grpc:grpc-core:jar:1.0.0:compile - omitted for duplicate) [INFO] +- io.grpc:grpc-stub:jar:1.0.0:compile [INFO] | \- (io.grpc:grpc-core:jar:1.0.0:compile - omitted for duplicate) // skipped It is com.google.protobuf:protobuf-java:jar:3.0.0:compile , and there are no other protobuf strings in the following skipped dependencies. Same problem reported to here : https://github.com/grpc/grpc-java/issues/2300 Sorry , not sure where goes wrong , so I post to many places. Feng Xiao於 2016年9月27日星期二 UTC+8上午2時02分37秒寫道： > > > > On Mon, Sep 26, 2016 at 8:53 AM, Smallufo Huang <[email protected] > <javascript:>> wrote: > >> Hi , I am new to gRPC / protobuf. >> >> This is my first .proto file : >> >> syntax = "proto3"; >> option java_package = "destiny.identity.services.grpc"; >> >> service EchoService { >> rpc echo (EchoRequest) returns (EchoReply) {} >> } >> >> message EchoRequest { >> string name=1; >> } >> >> message EchoReply { >> string message = 1; >> } >> >> >> It is simple , but the generated EchoServiceOuterClass.java has a lot of >> incompatibilities : >> >> >> ~/destiny-identity/target/generated-sources/protobuf/java/destiny/identity/services/grpc/EchoServiceOuterClass.java >> Error:(83, 13) java: incompatible types: java.io.IOException cannot be >> converted to java.lang.String >> Error:(152, 18) java: memoizedSize has private access in >> com.google.protobuf.AbstractMessage >> Error:(159, 7) java: memoizedSize has private access in >> com.google.protobuf.AbstractMessage >> Error:(394, 18) java: cannot find symbol >> symbol: method unwrapIOException() >> location: variable e of type >> com.google.protobuf.InvalidProtocolBufferException >> Error:(586, 13) java: incompatible types: java.io.IOException cannot be >> converted to java.lang.String >> Error:(655, 18) java: memoizedSize has private access in >> com.google.protobuf.AbstractMessage >> Error:(662, 7) java: memoizedSize has private access in >> com.google.protobuf.AbstractMessage >> Error:(897, 18) java: cannot find symbol >> symbol: method unwrapIOException() >> location: variable e of type >> com.google.protobuf.InvalidProtocolBufferException >> > This indicates a version mismatch between protocol compiler and protobuf > runtime. Are you depending the right protobuf-java 3.0.0 version? > > >> >> This is my [ partial ] pom.xml >> >> <plugin> >> <groupId>org.xolstice.maven.plugins</groupId> >> <artifactId>protobuf-maven-plugin</artifactId> >> <version>0.5.0</version> >> <configuration> >> <!-- >> The version of protoc must match protobuf-java. If you don't depend on >> protobuf-java directly, you will be transitively depending on the >> protobuf-java version that grpc depends on. >> --> >> >> <protocArtifact>com.google.protobuf:protoc:3.0.0:exe:${os.detected.classifier}</protocArtifact> >> <pluginId>grpc-java</pluginId> >> >> <pluginArtifact>io.grpc:protoc-gen-grpc-java:1.0.0:exe:${os.detected.classifier}</pluginArtifact> >> </configuration> >> <executions> >> <execution> >> <goals> >> <goal>compile</goal> >> <goal>compile-custom</goal> >> </goals> >> </execution> >> </executions> >> </plugin> >> >> >> The* grpc-netty , grpc-protobuf , grpc-stub* are all of version of 1.0.0 >> >> Where goes wrong here ? >> Thanks. >> >> (I don't know whether the problem is related to protobuf or gRPC , so I >> paste to both forum ) >> >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Protocol Buffers" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected] <javascript:>. >> To post to this group, send email to [email protected] >> <javascript:>. >> Visit this group at https://groups.google.com/group/protobuf. >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "Protocol Buffers" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To post to this group, send email to [email protected]. Visit this group at https://groups.google.com/group/protobuf. For more options, visit https://groups.google.com/d/optout.
