我遇到了以下错误：
core.js:1350 ERROR Error: Uncaught (in promise): Class not found
at c (polyfills.js:3)
at polyfills.js:3
at Object.callbackFromNative (cordova.js:293)
at processMessage (cordova.js:1114)
at processMessages (cordova.js:1137)
at t.invoke (polyfills.js:3)
at Object.onInvoke (core.js:4629)
at t.invoke (polyfills.js:3)
at r.run (polyfills.js:3)
at polyfills.js:3