That last error is a known problem with protobuf; you've run make, and that leaves files around that confuses Bazel. Please clean the protobuf subdirectory using git clean -f -d -x for example.
On Wed, Jun 28, 2017 at 9:37 AM, Yukang Yang <[email protected]> wrote: > 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/gr > pc-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]> 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]. >>> To post to this group, send email to [email protected]. >>> Visit this group at https://groups.google.com/group/grpc-io. >>> To view this discussion on the web visit https://groups.google.com/d/ms >>> gid/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. > 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/grpc-io. > To view this discussion on the web visit https://groups.google.com/d/ > msgid/grpc-io/c2399379-61f5-4ed4-a65f-446248a3c8b6%40googlegroups.com > <https://groups.google.com/d/msgid/grpc-io/c2399379-61f5-4ed4-a65f-446248a3c8b6%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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