Bazel build error for Ubuntu 20.04.2 LTS

[jw447]

Hi,

I encountered the following error when I tried to build the most recent 2020-12-07 release on ubuntu 20.04 with bazel v4.0.0.

(base) jon@jon-OptiPlex-3050:~/Downloads/lab-release-2020-12-07$ **bazel build -c opt //:deepmind_lab.so**
Starting local Bazel server and connecting to it...
INFO: SHA256 (https://github.com/bazelbuild/rules_cc/archive/master.zip) = 66af5b045d30b49a61faaf063ba5da7e47b9b393e3d64b40035f66ec1ade8f34
DEBUG: Rule 'rules_cc' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "66af5b045d30b49a61faaf063ba5da7e47b9b393e3d64b40035f66ec1ade8f34"
DEBUG: Repository rules_cc instantiated at:
  /home/jon/Downloads/lab-release-2020-12-07/WORKSPACE:11:13: in <toplevel>
Repository rule http_archive defined at:
  /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in <toplevel>
INFO: SHA256 (https://github.com/abseil/abseil-cpp/archive/master.zip) = 3bdbf16bf457b270c01370595a88fae4c5be60ae1cf242dfffe832b3ec5d3d38
DEBUG: Rule 'com_google_absl' indicated that a canonical reproducible form can be obtained by modifying arguments sha256 = "3bdbf16bf457b270c01370595a88fae4c5be60ae1cf242dfffe832b3ec5d3d38"
DEBUG: Repository com_google_absl instantiated at:
  /home/jon/Downloads/lab-release-2020-12-07/WORKSPACE:23:13: in <toplevel>
Repository rule http_archive defined at:
  /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in <toplevel>
INFO: Repository jpeg_archive instantiated at:
  /home/jon/Downloads/lab-release-2020-12-07/WORKSPACE:76:13: in <toplevel>
Repository rule http_archive defined at:
  /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/bazel_tools/tools/build_defs/repo/http.bzl:336:31: in <toplevel>
**WARNING: Download from http://www.ijg.org/files/jpegsrc.v9c.tar.gz failed:** class com.google.devtools.build.lib.bazel.repository.downloader.UnrecoverableHttpException Checksum was 1e9793e1c6ba66e7e0b6e5fe7fd0f9e935cc697854d5737adec54d93e5b3f730 but wanted 650250979303a649e21f87b5ccd02672af1ea6954b911342ea491f351ceb7122
**ERROR**: An error occurred during the fetch of repository 'jpeg_archive':
   Traceback (most recent call last):
	File "/home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/bazel_tools/tools/build_defs/repo/http.bzl", line 111, column 45, in _http_archive_impl
		download_info = ctx.download_and_extract(
Error in download_and_extract: java.io.IOException: Error downloading [http://www.ijg.org/files/jpegsrc.v9c.tar.gz] to /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/jpeg_archive/temp12295575112861601693/jpegsrc.v9c.tar.gz: Checksum was 1e9793e1c6ba66e7e0b6e5fe7fd0f9e935cc697854d5737adec54d93e5b3f730 but wanted 650250979303a649e21f87b5ccd02672af1ea6954b911342ea491f351ceb7122
**ERROR**: Error fetching repository: Traceback (most recent call last):
	File "/home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/bazel_tools/tools/build_defs/repo/http.bzl", line 111, column 45, in _http_archive_impl
		download_info = ctx.download_and_extract(
Error in download_and_extract: java.io.IOException: Error downloading [http://www.ijg.org/files/jpegsrc.v9c.tar.gz] to /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/jpeg_archive/temp12295575112861601693/jpegsrc.v9c.tar.gz: Checksum was 1e9793e1c6ba66e7e0b6e5fe7fd0f9e935cc697854d5737adec54d93e5b3f730 but wanted 650250979303a649e21f87b5ccd02672af1ea6954b911342ea491f351ceb7122
ERROR: /home/jon/Downloads/lab-release-2020-12-07/q3map2/BUILD:54:10: //q3map2:q3map2 depends on @jpeg_archive//:jpeg in repository @jpeg_archive which failed to fetch. no such package '@jpeg_archive//': java.io.IOException: Error downloading [http://www.ijg.org/files/jpegsrc.v9c.tar.gz] to /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/jpeg_archive/temp12295575112861601693/jpegsrc.v9c.tar.gz: Checksum was 1e9793e1c6ba66e7e0b6e5fe7fd0f9e935cc697854d5737adec54d93e5b3f730 but wanted 650250979303a649e21f87b5ccd02672af1ea6954b911342ea491f351ceb7122
ERROR: Analysis of target '//:deepmind_lab.so' failed; build aborted: Analysis failed
INFO: Elapsed time: 11.499s
INFO: 0 processes.
FAILED: Build did NOT complete successfully (33 packages loaded, 2137 targets configured)
    Fetching @glib_archive; fetching
    Fetching ...rchive; Extracting /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/gl\
ib_archive/temp5646751761591577341/glib-2.55.1.tar.xz
    Fetching @libxml_archive; fetching
    Fetching ...rchive; Extracting /home/jon/.cache/bazel/_bazel_jon/da5c2ed69824167a0d9ab7bef82e6435/external/li\
bxml_archive/temp18084912001669814023/libxml2-2.9.7.tar.gz

I noticed that the error essentially comes from a checksum failure of a repo called "jpeg_archive" so this is not technically an issue here. But I'm wondering if you have a fix here, or maybe a possible direction.

Thanks.

[tkoeppe]

We need to fix the checksum, after someone who hopefully still has a copy of the previous archive can verify that nothing untoward was changed... unfortunately libjpeg keeps doing this where they repackage the same versioned archive, and then the checksum changes...

[tkoeppe]

Hm, as far as I can tell, the current checksum does match what we say in WORKSPACE: https://github.com/deepmind/lab/blob/master/WORKSPACE#L79

(That's 1e9793e1c6ba66e7e0b6e5fe7fd0f9e935cc697854d5737adec54d93e5b3f730.)

Are you at head?

See be0f797#diff-5493ff8e9397811510e780de47c57abb70137f1afe85d1519130dc3679d60ce5.

[jw447]

I was using 2020-12-07 release version:

https://github.com/deepmind/lab/blob/2e4c62938a00bce6331a078558a8385438c17b51/WORKSPACE#L79

I will try the master branch.

[jw447]

The master branch works fine. I will lose the issue now, Thanks!