Fatal error: Cannot access empty property in /.../fe_paths/fe_paths.module on line 149

#1 worked for me, thanks MXT.

#1 worked for me too.

For the record, I got this error only when I tried to grant a user new role.

#1 prevents the error but breaks the functionality of the module.

More specifically, in my case, the WSOD is seen when a user edit form or the batch user edit form under admin/people is submitted. And the changes are not saved.

This is probably that forms have a profile picture field and they are empty on form submission which are not handled in the code. So it shouldn't be a big deal.

I changed the line 148 of fe_paths.module from
if (isset($entity_info['entity keys']['bundle'])) {
to
if (isset($entity_info['entity keys']['bundle']) && isset($entity->{$entity_info['entity keys']['bundle']})) {

Saves the moment.

Here is the change from #6 in a patch.

Here's the same as #7 but not in sites/all/modules, so sites with other directory structures can still apply it.

Re-roll against latest 7.x-2.x

Re-roll on 7.x-2.0-alpha3

EDIT: Sorry I was a bit loopy yesterday after a long day. This isn't needed.

#10 Fixed this for me.

The right patch is #9, because it should be against 7.x-2.x-dev, not the alpha version.

Works as expected.