Documentation Build Errors

Errors for "symfony/it/2.6"

components/form/introduction.rst:505: WARNING: undefined label: form-option-action (if the link has no caption the label must precede a section header)
components/form/introduction.rst:505: WARNING: undefined label: form-option-method (if the link has no caption the label must precede a section header)

Errors for "symfony/it/2.5"

reference/twig_reference.rst:446: WARNING: undefined label: components-yaml-dump (if the link has no caption the label must precede a section header)

Errors for "symfony/it/2.3"

components/form/introduction.rst:505: WARNING: undefined label: form-option-action (if the link has no caption the label must precede a section header)
cookbook/assetic/uglifyjs.rst:213: WARNING: undefined label: cookbook-asetic-dump-prod (if the link has no caption the label must precede a section header)