You gotta take the actual album ID (which is not easy to get...):
- Create an album in Picasa Web Albums
- Browse to the album
- Click on the "RSS" link on the right side

You'll see a link like this:
https://picasaweb.google.com/data/feed/base/user/USERNAME/albumid/ALBUMID?...

The ALBUMID is what you have to copy in the text field.

On Mon, Jun 27, 2011 at 4:00 PM, starenka <email address hidden> wrote:
> Hm, i just wrote a string (non-existant album). Seem like the cause of this
> problem.
> ---
> In Perl you shoot yourself in the foot, but nobody can understand how you
> did it. Six months later, neither can you. | print 'aknerats'[::-1]
>
>
> On Mon, Jun 27, 2011 at 3:46 PM, Philipp C. Heckel <
> <email address hidden>> wrote:
>
>> I cannot reproduce this.
>> Did you choose an existing empty album? And where did you get the album ID
>> from?
>>
>> On Sun, Jun 26, 2011 at 11:28 PM, starenka <email address hidden>
>> wrote:
>> > Public bug reported:
>> >
>> > Creating remote storage ......org.syncany.exceptions.StorageException:
>> ...
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:195)
>> >        at
>> org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>> >        at java.lang.Thread.run(Thread.java:662)
>> >
>> > Creating remote storage ......org.syncany.exceptions.StorageException:
>> ...
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:195)
>> >        at
>> org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>> >        at java.lang.Thread.run(Thread.java:662)
>> >
>> > ** Affects: syncany
>> >     Importance: Undecided
>> >         Status: New
>> >
>> > ** Summary changed:
>> >
>> > - crash Picasa storage init
>> > + hangs on Picasa storage init (wizard)
>> >
>> > --
>> > You received this bug notification because you are subscribed to
>> > Syncany.
>> > https://bugs.launchpad.net/bugs/802283
>> >
>> > Title:
>> >  hangs on Picasa storage init (wizard)
>> >
>> > Status in Syncany:
>> >  New
>> >
>> > Bug description:
>> >  Creating remote storage ......org.syncany.exceptions.StorageException:
>> ...
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:195)
>> >        at
>> org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>> >        at java.lang.Thread.run(Thread.java:662)
>> >
>> >  Creating remote storage ......org.syncany.exceptions.StorageException:
>> ...
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>> >        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:201)
>> >        at org.syncany.config.Repository.commit(Repository.java:195)
>> >        at
>> org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>> >        at java.lang.Thread.run(Thread.java:662)
>> >
>> > To manage notifications about this bug go to:
>> > https://bugs.launchpad.net/syncany/+bug/802283/+subscriptions
>> >
>>
>> --
>> You received this bug notification because you are subscribed to the bug
>> report.
>> https://bugs.launchpad.net/bugs/802283
>>
>> Title:
>>  hangs on Picasa storage init (wizard)
>>
>> Status in Syncany:
>>  New
>>
>> Bug description:
>>  Creating remote storage ......org.syncany.exceptions.StorageException: ...
>>        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>>        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>>        at org.syncany.config.Repository.commit(Repository.java:201)
>>        at org.syncany.config.Repository.commit(Repository.java:195)
>>        at
>> org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>>        at java.lang.Thread.run(Thread.java:662)
>>
>>  Creating remote storage ......org.syncany.exceptions.StorageException: ...
>>        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>>        at
>> org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>>        at org.syncany.config.Repository.commit(Repository.java:201)
>>        at org.syncany.config.Repository.commit(Repository.java:195)
>>        at
>> org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>>        at java.lang.Thread.run(Thread.java:662)
>>
>> To manage notifications about this bug go to:
>> https://bugs.launchpad.net/syncany/+bug/802283/+subscriptions
>>
>
> --
> You received this bug notification because you are subscribed to
> Syncany.
> https://bugs.launchpad.net/bugs/802283
>
> Title:
>  hangs on Picasa storage init (wizard)
>
> Status in Syncany:
>  New
>
> Bug description:
>  Creating remote storage ......org.syncany.exceptions.StorageException: ...
>        at org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>        at org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>        at org.syncany.config.Repository.commit(Repository.java:201)
>        at org.syncany.config.Repository.commit(Repository.java:195)
>        at org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>        at java.lang.Thread.run(Thread.java:662)
>
>  Creating remote storage ......org.syncany.exceptions.StorageException: ...
>        at org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:193)
>        at org.syncany.connection.plugins.picasa.PicasaTransferManager.list(PicasaTransferManager.java:201)
>        at org.syncany.config.Repository.commit(Repository.java:201)
>        at org.syncany.config.Repository.commit(Repository.java:195)
>        at org.syncany.gui.wizard.RepositoryTestPanel$1.run(RepositoryTestPanel.java:57)
>        at java.lang.Thread.run(Thread.java:662)
>
> To manage notifications about this bug go to:
> https://bugs.launchpad.net/syncany/+bug/802283/+subscriptions
>