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Created by Tom Cannaerts@tomcannaerts

Gitlab import error: "Validation failed: User already exists in source"

Summary

I'm importing a GitLab export from another instance that has a lot of merge-requests. The import fails with the error message: "Validation failed: User already exists in source".

Relevant logs and/or screenshots

Import/Export error raised on /opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:20:in `rescue in restore': Validation failed: User already exists in source
["/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/validations.rb:79:in `raise_record_invalid'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/validations.rb:43:in `save!'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/attribute_methods/dirty.rb:29:in `save!'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/transactions.rb:291:in `block in save!'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/transactions.rb:351:in `block in with_transaction_returning_status'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `block in transaction'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/connection_adapters/abstract/transaction.rb:184:in `within_new_transaction'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/connection_adapters/abstract/database_statements.rb:213:in `transaction'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/transactions.rb:220:in `transaction'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/transactions.rb:348:in `with_transaction_returning_status'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/transactions.rb:291:in `save!'",
"/opt/gitlab/embedded/service/gem/ruby/2.3.0/gems/activerecord-4.2.7.1/lib/active_record/persistence.rb:51:in `create!'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/members_mapper.rb:48:in `ensure_default_member!'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/members_mapper.rb:14:in `initialize'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:31:in `new'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:31:in `members_mapper'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:114:in `block in create_relation'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:111:in `map'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:111:in `create_relation'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:49:in `block in create_relations'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:43:in `each'",
"/opt/gitlab/embedded/service/gitlab-rails/lib/gitlab/import_export/project_tree_restorer.rb:43:in `create_relations'",

Results of GitLab environment info

System information System: Debian 8.3 Current User: git Using RVM: no Ruby Version: 2.3.1p112 Gem Version: 2.6.6 Bundler Version:1.13.3 Rake Version: 10.5.0 Sidekiq Version:4.1.4

GitLab information Version: 8.12.7 Revision: 7429b21d Directory: /opt/gitlab/embedded/service/gitlab-rails DB Adapter: postgresql Using LDAP: yes Using Omniauth: yes Omniauth Providers:

GitLab Shell Version: 3.6.1 Repository storage paths:

  • default: /var/opt/gitlab/git-data/repositories Hooks: /opt/gitlab/embedded/service/gitlab-shell/hooks/ Git: /opt/gitlab/embedded/bin/git