Multiple errors occur when building tensorboard from source.

Hi All,

I am trying to build tensorboard from source(https://github.com/tensorflow/tensorboard.git) with steps as mentioned in https://github.com/tensorflow/tensorboard using bazel(bazel 3.7.2) in Windows 10. But I am facing multiple issues.

->bazel build tensorboard:tensorboard

INFO: From Compiling com_google_protobuf/python/google/protobuf/pyext/unknown_fields.cc:
external/com_google_protobuf/src\google/protobuf/message.h(127): warning C4005: 'GOOGLE_PROTOBUF_HAS_ONEOF': macro redefinition
external/com_google_protobuf/python/google/protobuf/pyext/unknown_fields.cc: note: see previous definition of 'GOOGLE_PROTOBUF_HAS_ONEOF'
INFO: From Linking external/com_google_protobuf/python/google/protobuf/pyext/_message.so:
   Creating library bazel-out/x64_windows-opt-exec-50AE0418/bin/external/com_google_protobuf/python/google/protobuf/pyext/python/google/protobuf/pyext/_message.so.if.lib and object bazel-out/x64_windows-opt-exec-50AE0418/bin/external/com_google_protobuf/python/google/protobuf/pyext/python/google/protobuf/pyext/_message.so.if.exp
ERROR: D:/tensorboard/tensorboard/webapp/BUILD:202:8: Executing genrule //tensorboard/webapp:gen_index_polymer3.html failed (Exit 1): bash.exe failed: error executing command C:/msys64/usr/bin/bash.exe -c ... (remaining 1 argument(s) skipped)
stat: cannot stat 'C:\Users\User\_bazel_user\6thpos4r\execroot\org_tensorflow_tensorboard\bazel-out\host\bin\tensorboard\logo\inline_favicon.runfiles/org_tensorflow_tensorboard/tensorboard/logo/favicon.png': No such file or directory
Target //tensorboard:tensorboard failed to build
Use --verbose_failures to see the command lines of failed build steps.
INFO: Elapsed time: 430.972s, Critical Path: 115.08s
INFO: 2071 processes: 1044 internal, 497 local, 530 worker.
FAILED: Build did NOT complete successfully

“/logo/favicon.png’: No such file or directory”. To fix this issue, I removed the following entry causing the issue from tensorboard/tensorboard/webapp/BUILD file

genrule(
    name = "gen_index_polymer3.html",
    srcs = ["index_polymer3.uninlined.html"],
    outs = ["index_polymer3.inlined.html"],
    cmd = "$(execpath //tensorboard/logo:inline_favicon) $< >$@",
    tools = ["//tensorboard/logo:inline_favicon"],
)

After cleaning(>bazel clean --expunge) I ran the build again. This time new issue occurred.

Starting local Bazel server and connecting to it...
INFO: Analyzed target //tensorboard:tensorboard (676 packages loaded, 33435 targets configured).
INFO: Found 1 target...
ERROR: D:/tensorboard/tensorboard/webapp/BUILD:204:15: //tensorboard/webapp:tensorboard-webapp: missing input file '//tensorboard/webapp:index_polymer3.inlined.html'
Target //tensorboard:tensorboard failed to build
Use --verbose_failures to see the command lines of failed build steps.
ERROR: D:/tensorboard/tensorboard/webapp/BUILD:220:16 1 input file(s) do not exist
INFO: Elapsed time: 158.753s, Critical Path: 9.58s
INFO: 383 processes: 308 internal, 9 local, 66 worker.
FAILED: Build did NOT complete successfully

Error suggests another missing file. I tried using old versions of source code, but faced multiple issues including Circular dependencies. Please advise how to resolve the issues.

[nfelt]

Projector visualization is a very cool feature. I have an ER, will it be possible to allow the user to see their 3-Dimensional data without applying any dimensionality reduction techniques. This will allow the user to experiment with other techniques than the offered ones.

Yes, we have a longstanding feature request for this: https://github.com/tensorflow/tensorboard/issues/1192 (and also somewhat https://github.com/tensorflow/tensorboard/issues/1204)

I agree it would be useful, but we haven’t had bandwidth to look into this area.

[japie1235813]

We can re-open the issue, but can’t provide much further assistance here since the windows build for TensorBoard has never been officially supported (including WSL). If you identify patches that would get things working, we’re happy to review them.

Also, while I’m glad you’re excited about the projector visualization, we also don’t explicitly support the standalone mode - you’re welcome to try to get it working but I would not suggest relying on it long term.

As for the error message you provided, there is a missing slash, it might be something to do with how Windows (or WSL) compose the filepath. (It shows ...logo/inline_favicon.runfilesorg_tensorflow_tensorboard/tensorboard/logo/favicon.png but we expect something ...logo/inline_favicon.runfiles/org_tensorflow_tensorboard/tensorboard/logo/favicon.png Again we will not look into the details.