[protobuf] NoClassDefFoundError
Hello. I have already read the previous posts and attempted to everything right to get Protobuf 2.4.1 working on android but I still get a NoClassDefFoundError on runtime at the following line: PhoneEvent.Builder eventMessage = PhoneEvent.newBuilder().setX(x).setY(y).setZ(z); I have: - Downloaded protobuf-2.4.1.tar.bz2, unpacked it and ./configure, make, sudo make install. When I run protoc --version I get libprotoc 2.4.1 - used protoc to compile the .proto to java source and also included that under my source. - used maven to build the lite .jar (my proto file has option optimize_for = LITE_RUNTIME;) -- mvn package -P lite - put the .jar file under lib, made a new userlibrary and referenced it in my build path. Project compiles fine. The funny thing is that the exact same code used to work fine with a random protobuf.jar I found somewhere on the net and stuffed in my build path. It's when I tried to move to protobuf 2.4.1 that all problems started. Am I missing something? -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: NoClassDefFoundError
Did you remember to compile descriptor.proto with protoc? -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: NoClassDefFoundError
Thank you for your response. Unfortunately I'm not sure what descriptor.proto is. I never had to compile that before. What would I do with the output of compiling that file? On Jun 10, 9:29 am, Ben Wright compuware...@gmail.com wrote: Did you remember to compile descriptor.proto with protoc? -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
[protobuf] Re: NoClassDefFoundError
The descriptor.proto is the proto that describes proto files. This supports that Java and C++ reflection language feature and is required to be part of the java library. descriptor.proto is located at protobuf-2.4.1/src/google/protobuf/ descriptor.proto (with the C++ code) Please see the file included in the 2.4.1 distribution at protobuf-2.4.1/java/README.txt for instructions on how to properly build / install the java library without maven. I've included the relevant section below: Installation - Without Maven If you would rather not install Maven to build the library, you may follow these instructions instead. Note that these instructions skip running unit tests. 1) Build the C++ code, or obtain a binary distribution of protoc. If you install a binary distribution, make sure that it is the same version as this package. If in doubt, run: $ protoc --version If you built the C++ code without installing, the compiler binary should be located in ../src. 2) Invoke protoc to build DescriptorProtos.java: $ protoc --java_out=src/main/java -I../src \ ../src/google/protobuf/descriptor.proto 3) Compile the code in src/main/java using whatever means you prefer. 4) Install the classes wherever you prefer. -- You received this message because you are subscribed to the Google Groups Protocol Buffers group. To post to this group, send email to protobuf@googlegroups.com. To unsubscribe from this group, send email to protobuf+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/protobuf?hl=en.
