That's an 0.5 error message, so you have some 1.0 elements running against an 0.5 Polymer library, which will not work. You need to update to Polymer 1.x to use these elements (1.2.3 is the most recent version).
This particular string doesn't occur in the 1.0 version of the library: https://github.com/Polymer/polymer/search?utf8=%E2%9C%93&q=could+not+be+inferred&type=Code If you're upgrading an app from 0.5, see the following documents: Introducing Polymer 1.0 (https://www.polymer-project.org/1.0/docs/) for a high-level overview. Migration Guide (https://www.polymer-project.org/1.0/docs/migration.html) for detailed information on migrating a Polymer 0.5 application to Polymer 1.x. Cheers, Arthur On Wed, Nov 18, 2015 at 10:58 AM, 'Daniel Freedman' via Polymer < [email protected]> wrote: > You probably didn't specify the `is` property in your element in the > Polymer call. > > <dom-module id="my-element"> > <script> > Polymer({ > is: 'my-element' > }) > </script> > </dom-module> > > On Mon, Nov 16, 2015 at 10:08 PM, Eric Bidelman <[email protected]> wrote: > >> It would be helpful if you posted your code. >> >> On Mon, Nov 16, 2015 at 9:34 PM <[email protected]> wrote: >> >>> Hi, I need polymer js without errors... >>> >>> >>> <https://lh3.googleusercontent.com/-SI9QARxF_dk/Vkq8PMZP1sI/AAAAAAAAAAM/uSK6-FilrfE/s1600/error.jpg> >>> >>> Follow Polymer on Google+: plus.google.com/107187849809354688692 >>> --- >>> You received this message because you are subscribed to the Google >>> Groups "Polymer" group. >>> To unsubscribe from this group and stop receiving emails from it, send >>> an email to [email protected]. >>> To view this discussion on the web visit >>> https://groups.google.com/d/msgid/polymer-dev/d148b509-4582-4c64-a734-2bab7065d0dd%40googlegroups.com >>> <https://groups.google.com/d/msgid/polymer-dev/d148b509-4582-4c64-a734-2bab7065d0dd%40googlegroups.com?utm_medium=email&utm_source=footer> >>> . >>> For more options, visit https://groups.google.com/d/optout. >>> >> Follow Polymer on Google+: plus.google.com/107187849809354688692 >> --- >> You received this message because you are subscribed to the Google Groups >> "Polymer" group. >> To unsubscribe from this group and stop receiving emails from it, send an >> email to [email protected]. >> To view this discussion on the web visit >> https://groups.google.com/d/msgid/polymer-dev/CACGqRCAkj_A8p7siTT8xsYcDXhFFKas8pXeWZC6k6kMCcCAeeQ%40mail.gmail.com >> <https://groups.google.com/d/msgid/polymer-dev/CACGqRCAkj_A8p7siTT8xsYcDXhFFKas8pXeWZC6k6kMCcCAeeQ%40mail.gmail.com?utm_medium=email&utm_source=footer> >> . >> >> For more options, visit https://groups.google.com/d/optout. >> > > Follow Polymer on Google+: plus.google.com/107187849809354688692 > --- > You received this message because you are subscribed to the Google Groups > "Polymer" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to [email protected]. > To view this discussion on the web visit > https://groups.google.com/d/msgid/polymer-dev/CAAUAVAisQMj_ujG7i%2BXMAq6_PTuAjbfpkGeB%2B56o%3Dd4uQrhbmQ%40mail.gmail.com > <https://groups.google.com/d/msgid/polymer-dev/CAAUAVAisQMj_ujG7i%2BXMAq6_PTuAjbfpkGeB%2B56o%3Dd4uQrhbmQ%40mail.gmail.com?utm_medium=email&utm_source=footer> > . > > For more options, visit https://groups.google.com/d/optout. > Follow Polymer on Google+: plus.google.com/107187849809354688692 --- You received this message because you are subscribed to the Google Groups "Polymer" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/polymer-dev/CADSbU_wYh3i1C9B7K0HkUmHF%2B%3DVny8uzvqkqQo%2BgncsDe6goag%40mail.gmail.com. For more options, visit https://groups.google.com/d/optout.
