Project sync fails with errors

[hsestupin]

Actualy there are lots of identical errors which look like this:

ERROR: /Users/jetbrains/src/datalore/platform/widget/widget-to-dom/BUILD.bazel:53:1: in @intellij_aspect//:intellij_info_bundled.bzl%intellij_info_aspect aspect on filegroup rule //platform/widget/widget-to-dom:views_resources: 
Traceback (most recent call last):
	File "/Users/jetbrains/src/datalore/platform/widget/widget-to-dom/BUILD.bazel", line 53
		@intellij_aspect//:intellij_info_bundled.bzl%intellij_info_aspect(...)
	File "/private/var/tmp/_bazel_jetbrains/e439d9fcbe1875cf9922b11e6b2acfbc/external/intellij_aspect/intellij_info_bundled.bzl", line 38, in _aspect_impl
		intellij_info_aspect_impl(target, ctx, semantics)
	File "/private/var/tmp/_bazel_jetbrains/e439d9fcbe1875cf9922b11e6b2acfbc/external/intellij_aspect/intellij_info_impl.bzl", line 802, in intellij_info_aspect_impl
		update_set_in_dict(output_groups, "intellij-info-gene...", ...]))
	File "/private/var/tmp/_bazel_jetbrains/e439d9fcbe1875cf9922b11e6b2acfbc/external/intellij_aspect/intellij_info_impl.bzl", line 191, in update_set_in_dict
		input_dict.get(key, depset()) | other_set
`|` operator on a depset is forbidden. See https://docs.bazel.build/versions/master/skylark/depsets.html for recommendations. Use --incompatible_depset_union=false to temporarily disable this check.

Bazel version is: 0.18.1-homebrew
Idea: 2018.2.4
Plugin: 2018.10.22.0.2

Is there any workaround for this?

[brendandouglas]

Looks like you'll need to add "--incompatible_depset_union=false" to your bazel flags (either your .bazelrc file, or the "build_flags" .bazelproject file), or downgrade to an earlier version of bazel.

[jin]

What @brendandouglas said. See bazelbuild/bazel#5817 for more information on how to migrate their projects to use the new constructor.

[laurentlb]

incompatible_depset_union is still false by default.

From the error message, it seems like it was explicitly set to true (using either --incompatible_depset_union or --all_incompatible_changes).