In the app.js dependency injection module and plug-in module, except that ui.router works normally, ngCookies and validation (a form validation plug-in) both report errors. I once suspected that there was something wrong with my own writing, but Baidu did not find it. Found any problem, please help...
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It has been solved. At first I thought it was an angularjs version issue, but finally I found out that it was a js reference order issue. Because the packaging tool was not used, the reference order affected module injection and instruction reference errors.