在安装Sonar从5.0.1升级到5.1期间成功运行数据库升级后，主页（“Projects”仪表板）显示错误消息。
在日志文件中，我看到以下“Ruby on Rails”（？）stacktrace：
2016.01.28 14:25:35 ERROR web[rails] Can not render widget measure_filter_list:
ActionView::TemplateError (undefined method `to_date' for nil:NilClass) on line #207 of app/views/measures/_display_list.html.erb:
204: <% end %>
205: <% filter.display.columns.each do |column| %>
206: <td class="<%= column.align -%> <%= column.row_css -%>">
207: <%= list_cell_html(column, row) -%>
208: </td>
209: <% end %>
210: </tr>
app/helpers/application_helper.rb:118:in `human_short_date'
app/helpers/measures_helper.rb:57:in `list_cell_html'
app/views/measures/_display_list.html.erb:207
org/jruby/RubyArray.java:1613:in `each'
app/views/measures/_display_list.html.erb:205
org/jruby/RubyArray.java:1613:in `each'
app/views/measures/_display_list.html.erb:200
org/jruby/RubyKernel.java:2227:in `send'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:20:in `render'
gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:30:in `benchmark'
gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:19:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/template.rb:205:in `render_template'
gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:44:in `render_partial'
gems/gems/actionpack-2.3.15/lib/action_view/partials.rb:184:in `render_partial'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:267:in `render'
compiled-template:18:in `_run_inline_531921568_locals_dashboard_configuration_widget_widget_properties'
org/jruby/RubyKernel.java:2227:in `send'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:269:in `render'
app/helpers/dashboard_helper.rb:162:in `widget_body'
app/views/dashboard/_widget.html.erb:3
org/jruby/RubyKernel.java:2227:in `send'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:20:in `render'
gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:30:in `benchmark'
gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:19:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/template.rb:205:in `render_template'
gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:44:in `render_partial'
gems/gems/actionpack-2.3.15/lib/action_view/partials.rb:184:in `render_partial'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:267:in `render'
app/views/dashboard/index.html.erb:19
org/jruby/RubyArray.java:1613:in `each'
app/views/dashboard/index.html.erb:15
org/jruby/RubyRange.java:427:in `each'
app/views/dashboard/index.html.erb:9
org/jruby/RubyKernel.java:2227:in `send'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/template.rb:205:in `render_template'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:265:in `render'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:348:in `_render_with_layout'
gems/gems/actionpack-2.3.15/lib/action_view/base.rb:262:in `render'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:1252:in `render_for_file'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:936:in `render'
gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:1328:in `default_render'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:1334:in `perform_action'
gems/gems/actionpack-2.3.15/lib/action_controller/filters.rb:617:in `call_filters'
gems/gems/actionpack-2.3.15/lib/action_controller/filters.rb:610:in `perform_action_with_filters'
gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
gems/gems/actionpack-2.3.15/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue'
gems/gems/actionpack-2.3.15/lib/action_controller/flash.rb:151:in `perform_action_with_flash'
org/jruby/RubyKernel.java:2223:in `send'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:532:in `process'
gems/gems/actionpack-2.3.15/lib/action_controller/filters.rb:606:in `process_with_filters'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:391:in `process'
gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:386:in `call'
gems/gems/actionpack-2.3.15/lib/action_controller/routing/route_set.rb:450:in `call'
gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:87:in `dispatch'
gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:121:in `_call'
gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
org/jruby/RubyProc.java:290:in `call'
org/jruby/RubyProc.java:224:in `call'
gems/gems/activerecord-2.3.15/lib/active_record/query_cache.rb:29:in `call'
gems/gems/activerecord-2.3.15/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
gems/gems/activerecord-2.3.15/lib/active_record/query_cache.rb:9:in `cache'
gems/gems/activerecord-2.3.15/lib/active_record/query_cache.rb:28:in `call'
gems/gems/activerecord-2.3.15/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
gems/gems/actionpack-2.3.15/lib/action_controller/string_coercion.rb:25:in `call'
gems/gems/actionpack-2.3.15/lib/action_controller/params_parser.rb:15:in `call'
file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/jruby/rack/session_store.rb:70:in `context'
gems/gems/actionpack-2.3.15/lib/action_controller/failsafe.rb:26:in `call'
gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:106:in `call'
file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/rack/adapter/rails.rb:34:in `serve_rails'
file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/rack/adapter/rails.rb:39:in `call'
file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/rack/handler/servlet.rb:22:in `call'
此外，我所有现有项目的“Time Machine”仪表板完全打破了类似的消息：
2016.01.28 14:35:30 ERROR web[rails] Can not render widget time_machine: undefined method `to_date' for nil:NilClass
2016.01.28 14:35:30 ERROR web[rails] compiled-template:80:in `_run_inline_733135258_locals_dashboard_configuration_widget_widget_properties'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyArray.java:1613:in `each'
2016.01.28 14:35:30 ERROR web[rails] compiled-template:76:in `_run_inline_733135258_locals_dashboard_configuration_widget_widget_properties'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyKernel.java:2227:in `send'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:269:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/app/helpers/dashboard_helper.rb:162:in `widget_body'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/app/views/dashboard/_widget.html.erb:3:in `_run_erb_app47views47dashboard47_widget46html46erb_locals_object_widget'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyKernel.java:2227:in `send'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:20:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:30:in `benchmark'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:19:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/template.rb:205:in `render_template'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable_partial.rb:44:in `render_partial'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/partials.rb:184:in `render_partial'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:267:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/app/views/dashboard/index.html.erb:19:in `_run_erb_app47views47dashboard47index46html46erb'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyArray.java:1613:in `each'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/app/views/dashboard/index.html.erb:15:in `_run_erb_app47views47dashboard47index46html46erb'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyRange.java:427:in `each'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/app/views/dashboard/index.html.erb:9:in `_run_erb_app47views47dashboard47index46html46erb'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyKernel.java:2227:in `send'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:34:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:306:in `with_template'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/renderable.rb:30:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/template.rb:205:in `render_template'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:265:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:348:in `_render_with_layout'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_view/base.rb:262:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:1252:in `render_for_file'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:936:in `render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activesupport-2.3.15/lib/active_support/core_ext/benchmark.rb:17:in `ms'
2016.01.28 14:35:30 ERROR web[rails] jar:file:/opt/tools/sonarqube-5.1/lib/server/jruby-complete-1.7.9.jar!/META-INF/jruby.home/lib/ruby/1.8/benchmark.rb:308:in `realtime'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activesupport-2.3.15/lib/active_support/core_ext/benchmark.rb:17:in `ms'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:51:in `render_with_benchmark'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:1328:in `default_render'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:1334:in `perform_action'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/filters.rb:617:in `call_filters'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/filters.rb:610:in `perform_action_with_filters'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activesupport-2.3.15/lib/active_support/core_ext/benchmark.rb:17:in `ms'
2016.01.28 14:35:30 ERROR web[rails] jar:file:/opt/tools/sonarqube-5.1/lib/server/jruby-complete-1.7.9.jar!/META-INF/jruby.home/lib/ruby/1.8/benchmark.rb:308:in `realtime'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activesupport-2.3.15/lib/active_support/core_ext/benchmark.rb:17:in `ms'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/benchmarking.rb:68:in `perform_action_with_benchmark'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/rescue.rb:160:in `perform_action_with_rescue'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/flash.rb:151:in `perform_action_with_flash'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyKernel.java:2223:in `send'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:532:in `process'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/filters.rb:606:in `process_with_filters'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:391:in `process'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/base.rb:386:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/routing/route_set.rb:450:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:87:in `dispatch'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:85:in `dispatch'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:121:in `_call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:130:in `build_middleware_stack'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyProc.java:290:in `call'
2016.01.28 14:35:30 ERROR web[rails] org/jruby/RubyProc.java:224:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activerecord-2.3.15/lib/active_record/query_cache.rb:29:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activerecord-2.3.15/lib/active_record/connection_adapters/abstract/query_cache.rb:34:in `cache'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activerecord-2.3.15/lib/active_record/query_cache.rb:9:in `cache'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activerecord-2.3.15/lib/active_record/query_cache.rb:28:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/activerecord-2.3.15/lib/active_record/connection_adapters/abstract/connection_pool.rb:361:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/string_coercion.rb:25:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/rack-1.1.6/lib/rack/head.rb:9:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/rack-1.1.6/lib/rack/methodoverride.rb:24:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/params_parser.rb:15:in `call'
2016.01.28 14:35:30 ERROR web[rails] file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/jruby/rack/session_store.rb:70:in `context'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/rack-1.1.6/lib/rack/session/abstract/id.rb:58:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/failsafe.rb:26:in `call'
2016.01.28 14:35:30 ERROR web[rails] /opt/tools/sonarqube-5.1/web/WEB-INF/gems/gems/actionpack-2.3.15/lib/action_controller/dispatcher.rb:106:in `call'
2016.01.28 14:35:30 ERROR web[rails] file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/rack/adapter/rails.rb:34:in `serve_rails'
2016.01.28 14:35:30 ERROR web[rails] file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/rack/adapter/rails.rb:39:in `call'
2016.01.28 14:35:30 ERROR web[rails] file:/opt/tools/sonarqube-5.1/lib/server/jruby-rack-1.1.13.2.jar!/rack/handler/servlet.rb:22:in `call'
从我在数据库迁移日志输出中看到的内容，已经重命名和/或从数据库中删除了许多“日期”命名列 - 不知何故，这似乎是相关的。
我们在Oracle XE数据库的Linux机器上运行SonarQube。我们想要升级到Sonar 5.3以便使用一些新的插件。由于我们的项目有一些历史，我们不想失去它......
SonarQube（http://docs.sonarqube.org/display/SONAR/Upgrading和http://docs.sonarqube.org/display/SONAR/Release+5.1+Upgrade+Notes）的升级指南中是否还有其他先决条件我需要完成？
答案 0 :(得分：0)
如文档http://docs.sonarqube.org/display/SONAR/Upgrading中所述，您必须在升级完成后分析项目以获取新数据。 这是你迈出的一步吗？