RL Unplugged - DM Lab colab broken

[Daniel Tan]

When running dmlab_r2d2.ipynb on Google Colab, the installation doesn't work due to errors with Bazel.

In the cell:

!cd lab && bazel build -c opt --python_version=PY3 //python/pip_package:build_pip_package

I get this error:

Loading: 
Loading: 0 packages loaded
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 0\
 targets configured)
DEBUG: Rule 'com_google_absl' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "c46c9587fbdd9c7b0077abf10886d4afe57535b0f0eb335bbc91d3401615a08c"
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 1\
 target configured)
    Fetching @libxml_archive; fetching
DEBUG: Repository com_google_absl instantiated at:
  no stack (--record_rule_instantiation_callstack not enabled)
Repository rule http_archive defined at:
  /root/.cache/bazel/_bazel_root/c03d8b2e91952e95491d9389899d0967/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in <toplevel>
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 1\
 target configured)
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
7 targets configured)
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
7 targets configured)
    Fetching @libxml_archive; fetching
INFO: Repository libxml_archive instantiated at:
  no stack (--record_rule_instantiation_callstack not enabled)
Repository rule http_archive defined at:
  /root/.cache/bazel/_bazel_root/c03d8b2e91952e95491d9389899d0967/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in <toplevel>
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
7 targets configured)
DEBUG: Rule 'bazel_skylib' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "a8aeef1780d5c4b9c7fe850caa26d9a2c05e5ea2aac825f55ea2a9663cfceda4"
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
DEBUG: Repository bazel_skylib instantiated at:
  no stack (--record_rule_instantiation_callstack not enabled)
Repository rule http_archive defined at:
  /root/.cache/bazel/_bazel_root/c03d8b2e91952e95491d9389899d0967/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in <toplevel>
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
ERROR: /root/.cache/bazel/_bazel_root/c03d8b2e91952e95491d9389899d0967/external/com_google_absl/absl/BUILD.bazel:109:15: no such target '@platforms//cpu:wasm32': target 'wasm32' not declared in package 'cpu' defined by /root/.cache/bazel/_bazel_root/c03d8b2e91952e95491d9389899d0967/external/platforms/cpu/BUILD and referenced by '@com_google_absl//absl:platforms_wasm32'
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
ERROR: While resolving configuration keys for @com_google_absl//absl:wasm_3: Analysis failed
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
ERROR: While resolving configuration keys for @com_google_absl//absl/base:base: Analysis failed
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
ERROR: Analysis of target '//python/pip_package:build_pip_package' failed; build aborted: Analysis failed
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
INFO: Elapsed time: 1.253s
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
INFO: 0 processes.
Analyzing: target //python/pip_package:build_pip_package (0 packages loaded, 3\
FAILED: Build did NOT complete successfully (0 packages loaded, 37 targets con\
FAILED: Build did NOT complete successfully (0 packages loaded, 37 targets con\
figured)

Full stack trace attached.

dmlab_r2d2.pdf