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When trying to build my site with dev/build I get the below error message.
I have tried to disable debug output with :
and also with:
But nothing changes the build from breaking.
[User Warning] Cookie 'PastMember' can't be set. The site started outputting was content at line 76 in ...../silverstripe/sapphire/dev/DebugView.php
This is a bug in 2.4.0/1. It has been fixed and will be included in the 2.4.2 release. You can also try out a daily build or a recent checkout via svn of the 2.4 branch. See
FYI, in the meantime until 2.4.2 is released, I've found that simply deleting all cookies for the given site allows you to do a /dev/build successfully.
... or if your site is in dev-mode just use another browser and it'll run through!
you can also just do it the old school (deprecated) way: db/build/?flush=1.
SilverStripe will grump at you and tell you to use the dev/build/?flush=1 link, but it still works just fine.
Can you explain which cookies you deleted?