Hi Nicolas, Thanks for reply!
1. Problem in GRPC's example (https://github.com/grpc/grpc/blob/master/examples/BUILD): I just git pull. Now I am at the same commit as you. But It still doesn't build, although this time it is a different error message. I am not sure if I am the only person who can get this error. Here is what I did: $ cd GRPC_REPOSITORY $ git show --oneline c4f85b78f3 (HEAD -> master, origin/master, origin/HEAD) Merge pull request #11474 from makdharma/cares_fix // same commit as yours $ ~/bazel version Build label: 0.5.2- (@non-git) // brew hasn't updated bazel and 0.5.1 has a bug. I built bazel from 0.5.2 distribution package $ ~/bazel build examples/... external/com_google_protobuf/BUILD.bazel:367:1: in cc_binary rule @com_google_protobuf//:protoc: cycle in dependency graph: //examples:_auth_sample_codegen //external:protocol_compiler (host) .-> @com_google_protobuf//:protoc (host) | @com_google_protobuf//:protoc_lib (host) | @com_google_protobuf//:protobuf (host) | @com_google_protobuf//:src/google/protobuf/util/internal/testdata/timestamp_duration.pb.h (host) | @com_google_protobuf//:cc_test_protos_genproto (host) `-- @com_google_protobuf//:protoc (host) This cycle occurred because of a configuration option. ERROR: Analysis of target '//examples:_auth_sample_codegen' failed; build aborted. // I checked protobuf BUILD file and I don't know how is @com_google_protobuf//:protobuf depends on a target of timestamp_duration.pb.h. 2. Problem in my own example ( https://bitbucket.org/xyyk/grpc-example/overview): I realized that more stuff is needed in WORKSPACE of my own example. Now I have went through all errors of "BUILD file not found", added missing external dependency and bind in my WORKSPACE, and fixed all of them. I no longer get any error about package or BUILD. But this time it seems bazel cannot output cc files successfully. $ cd MY_OWN_EXAMPLE $ ~/bazel build :helloworld ERROR: /Users/yukang/git-projects/grpc-example/BUILD:31:1: output 'rotos/helloworld.pb.h' was not created. ERROR: /Users/yukang/git-projects/grpc-example/BUILD:31:1: output 'rotos/helloworld.pb.cc' was not created. ERROR: /Users/yukang/git-projects/grpc-example/BUILD:31:1: not all outputs were created or valid. ERROR: /Users/yukang/git-projects/grpc-example/BUILD:31:1: output 'rotos/helloworld.grpc.pb.h' was not created. ERROR: /Users/yukang/git-projects/grpc-example/BUILD:31:1: output 'rotos/helloworld.grpc.pb.cc' was not created. Target //:helloworld failed to build It shows output as 'rotos/.....', while the output should actually be 'protos/.....' (the first letter 'p' is missing). This looks like a bazel issue. I also tried to build with -s $ ~/bazel clean $ ~/bazel build :helloworld -s Last output before the error is often this one: >>>>> # //:_helloworld_codegen [action 'Generating rotos/helloworld.pb.h'] (cd /private/var/tmp/_bazel_yukang/daf269fd3c8ea3827a82b98ac2b45027/execroot/__main__ && \ exec env - \ bazel-out/host/bin/external/com_google_protobuf/protoc '--cpp_out=:bazel-out/darwin_x86_64-fastbuild/genfiles' '-Iprotos/helloworld.proto=protos/helloworld.proto' protos/helloworld.proto) If I run the command as is, i.e. first cd into __main__, and then use exec env - bazel-out....., my terminal crashes immediately. I don't know where I can find any error log about the crash. The interesting thing is if I modify this command by a little. I still cd into __main__, remove 'exec env - ' and run only 'bazel-out/..../protoc ....'. It works. and I can see the output cc files in my bazel-out. This looks like a bazel issue. On Tuesday, June 27, 2017 at 5:13:36 PM UTC-7, Nicolas Noble wrote: > > So, first, you can't just grab a portion of the tree and expect it to work > elsewhere. What's important is that it's able to find the WORKSPACE file > properly. So your second test with the copy wouldn't work without a proper > WORKSPACE file. Plus some of the examples are referring to files down the > tree, such as, well, the grpc library itself. > > Then, the error itself you're seeing seems is an old one that was fixed a > while ago, so I'm not sure you're really at head here. > > :~/sources/grpc (master)$ git show --oneline > c4f85b7 Merge pull request #11474 from makdharma/cares_fix > > :~/sources/grpc (master)$ bazel build examples/... > INFO: Found 18 targets... > INFO: Elapsed time: 102.154s, Critical Path: 9.91s > :~/sources/grpc (master)$ ./bazel-bin/examples/greeter_server & > [1] 11025 > I0628 02:05:58.983490133 11025 server_builder.cc:254] Synchronous > server. Num CQs: 4, Min pollers: 1, Max Pollers: 2, CQ timeout (msec): 10000 > Server listening on 0.0.0.0:50051 > :~/sources/grpc (master)$ ./bazel-bin/examples/greeter_client > Greeter received: Hello world > > > On Mon, Jun 26, 2017 at 10:15 AM, Yukang Yang <[email protected] > <javascript:>> wrote: > >> Hi GRPC experts, >> >> I found the proto in GRPC example doesn't build with bazel. I used GRPC >> from head. bazel is got from brew install bazel. >> >> Here is what I did: >> >> git clone https://github.com/grpc/grpc.git >> cd grpc >> git pull && git submodule init && git submodule update && git submodule >> status >> cd examples >> bazel build :helloworld >> >> I got: >> >> ERROR: /Users/yukang/git-projects/grpc/WORKSPACE:16:1: no such package >> '@com_google_protobuf//': In new_local_repository rule //external:com_go >> ogle_protobuf the 'build_file' attribute does not specify an existing >> file (/Users/yukang/git-projects/grpc/third_party/protobuf/BUILD does not >> exist) and referenced by '//external:protobuf'. >> ERROR: Analysis of target '//examples:helloworld' failed; build aborted. >> >> I have verified that >> /Users/yukang/git-projects/grpc/third_party/protobuf/BUILD exists. >> >> I also copied example out of GRPC repository and tried to set up an >> external dependency on grpc repository. >> >> Here is what I did: >> >> https://bitbucket.org/xyyk/grpc-example/overview >> >> git clone [email protected]:xyyk/grpc-example.git >> cd grpc-example >> bazel build :helloworld >> >> I got: >> >> ERROR: error loading package '': Extension file not found. Unable to load >> package for '@grpc//bazel:grpc_build_system.bzl': BUILD file not found on >> package path. >> >> I also saw the post at http://www.grpc.io/blog/bazel_rules_protobuf. But >> their example at https://github.com/pubref/grpc_greetertimer doesn't >> build either. >> >> Does someone know what is wrong here? >> >> Thanks, >> Yukang >> >> -- >> You received this message because you are subscribed to the Google Groups >> "grpc.io" 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/grpc-io. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/grpc-io/b7f43ecb-0ebf-47d4-a0aa-20157f210881%40googlegroups.com >> >> <https://groups.google.com/d/msgid/grpc-io/b7f43ecb-0ebf-47d4-a0aa-20157f210881%40googlegroups.com?utm_medium=email&utm_source=footer> >> . >> For more options, visit https://groups.google.com/d/optout. >> > > -- You received this message because you are subscribed to the Google Groups "grpc.io" group. 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