当构建TensorFlow时，如果遇到以下错误信息：

ERROR: xyz/BUILD:1:1: no such package '@bazel_skylib//rules:bazel-skylib': The repository '@bazel_skylib//rules' could not be resolved.
ERROR: xyz/BUILD:1:1: no such package '@bazel_skylib//rules:bazel-skylib': The repository '@bazel_skylib//rules' could not be resolved.
ERROR: xyz/tensorflow/tools/graph_transforms/BUILD:1:1: no such package '@bazel_skylib//rules:bazel-skylib': The repository '@bazel_skylib//rules' could not be resolved.
ERROR: xyz/tensorflow/tools/graph_transforms/BUILD:1:1: no such package '@bazel_skylib//rules:bazel-skylib': The repository '@bazel_skylib//rules' could not be resolved.
ERROR: xyz/tensorflow/tools/graph_transforms/BUILD:1:1: no such package '@bazel_skylib//rules:bazel-skylib': The repository '@bazel_skylib//rules' could not be resolved.

这个错误通常是由于缺少bazel_skylib的依赖导致的。下面是解决这个问题的步骤：

1. 在项目的根目录中找到WORKSPACE文件（如果没有，请创建一个空的WORKSPACE文件）。
2. 打开WORKSPACE文件，并添加以下内容：

load("@bazel_tools//tools/build_defs/repo:http.bzl", "http_archive")

http_archive(
    name = "bazel_skylib",
    strip_prefix = "bazel-skylib-master",
    url = "https://github.com/bazelbuild/bazel-skylib/archive/master.zip",
)

load("@bazel_skylib//:workspace.bzl", "bazel_skylib_workspace")
bazel_skylib_workspace()

3. 保存WORKSPACE文件，并重新运行构建命令。

这样做应该能够解决bazel_skylib依赖导致的错误并成功构建tensorflow/tools/graph_transforms:transform_graph。