Fernando, Looks like you are using the PHP 2legged api. When I was creating the 3legged oauth library for PHP, got this issue several times, and found out that it was a bug on the library which is implementing the oauth mechanism.
Basically, when you get a white space in a token, it should be replaced by '+', but for some reason the library was not doing so. And in this case, when signing using a white space, this error comes up. This explains why you are getting intermitent errors. Can you give more information about which lib are you using ? If you are going to use 3legged, suggest you to use mine: code.google.com/p/orkut-os-client-php Best Robson Dantas @robsondantas 2011/2/9 Fernando Uchiyama <fernandoserv...@gmail.com> > You don't need to try too much to reproduce it. If you enter in the 3- > legged steps requesting the access token like twenty times, maybe 8 of > them will fail. > Before each test, remember to clear the storage (I'm using > osapiFileStorage), so the Orkut library will not use a cached Access > Token. > > On Feb 9, 4:45 pm, Bruno Oliveira <bru...@google.com> wrote: > > Strange... I'm using the orkut client library and I always get a good > access > > token from it. But granted, I've never tried several requests in quick > > succession to see how many succeed and how many fail. I'll try that and > see > > if I get those errors. > > -- > You received this message because you are subscribed to the Google Groups > "orkut Developer Forum" group. > To post to this group, send email to opensocial-orkut@googlegroups.com. > To unsubscribe from this group, send email to > opensocial-orkut+unsubscr...@googlegroups.com. > For more options, visit this group at > http://groups.google.com/group/opensocial-orkut?hl=en. > > -- You received this message because you are subscribed to the Google Groups "orkut Developer Forum" group. To post to this group, send email to opensocial-orkut@googlegroups.com. To unsubscribe from this group, send email to opensocial-orkut+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/opensocial-orkut?hl=en.