Ionic 3 error with TypeError

[Error] ERROR – Error: Uncaught (in promise): TypeError: undefined is not an object (evaluating ‘modules[moduleId].call’)
webpack_require@http://localhost:8100/build/vendor.js:55:29
http://localhost:8100/build/main.js:541:29
onInvoke@http://localhost:8100/build/vendor.js:4982:39
run@http://localhost:8100/build/polyfills.js:3:10149
http://localhost:8100/build/polyfills.js:3:20245
onInvokeTask@http://localhost:8100/build/vendor.js:4973:43
runTask@http://localhost:8100/build/polyfills.js:3:10844
o@http://localhost:8100/build/polyfills.js:3:7901
promiseReactionJob@[native code]
Error: Uncaught (in promise): TypeError: undefined is not an object (evaluating ‘modules[moduleId].call’)
webpack_require@http://localhost:8100/build/vendor.js:55:29
http://localhost:8100/build/main.js:541:29
onInvoke@http://localhost:8100/build/vendor.js:4982:39
run@http://localhost:8100/build/polyfills.js:3:10149
http://localhost:8100/build/polyfills.js:3:20245
onInvokeTask@http://localhost:8100/build/vendor.js:4973:43
runTask@http://localhost:8100/build/polyfills.js:3:10844
o@http://localhost:8100/build/polyfills.js:3:7901
promiseReactionJob@[native code]
defaultErrorLogger (vendor.js:1703)
handleError (vendor.js:1764)
handleError (vendor.js:161929)
next (vendor.js:5729:165)
(anonymous function) (vendor.js:4576)
__tryOrUnsub (vendor.js:33714)
next (vendor.js:33661)
_next (vendor.js:33601)
next (vendor.js:33565)
next (vendor.js:40469)
emit (vendor.js:4556)
run (polyfills.js:3:10150)
onHandleError (vendor.js:5004)
runGuarded (polyfills.js:3:10410)
(anonymous function) (polyfills.js:3:21024)
microtaskDrainDone (polyfills.js:3:21061)
o (polyfills.js:3:8009)
invokeTask (polyfills.js:3:16825)
p (polyfills.js:2:27655)
v (polyfills.js:2:27895)

Anyone know why this is happening?

I am having the same issue when I just updated some text in a html file.

Error: Uncaught (in promise): TypeError: undefined is not an object (evaluating ‘modules[moduleId].call’) webpack_require@http://localhost:8100/build/vendor.js:55:29 http://localhost:8100/build/main.js:8548:29 onInvoke@http://localhost:8100/build/vendor.js:5134:39 http://localhost:8100/build/polyfills.js?WB_REVISION=443c697fc904cd88a651d09cf5c2fe2b:3:10149 http://localhost:8100/build/polyfills.js?WB_REVISION=443c697fc904cd88a651d09cf5c2fe2b:3:20245 onInvokeTask@http://localhost:8100/build/vendor.js:5125:43 http://localhost:8100/build/polyfills.js?WB_REVISION=443c697fc904cd88a651d09cf5c2fe2b:3:10844 o@http://localhost:8100/build/polyfills.js?WB_REVISION=443c697fc904cd88a651d09cf5c2fe2b:3:7901 promiseReactionJob@[native code]
c — polyfills.js:4197
(anonymous function) — polyfills.js:4159
(anonymous function) — nav-controller-base.js:223
(anonymous function) — nav-controller-base.js:216
onInvoke — core.js:4760
(anonymous function) — polyfills.js:3842
(anonymous function) — polyfills.js:4226
onInvokeTask — core.js:4751
(anonymous function) — polyfills.js:3875
o — polyfills.js:3750
promiseReactionJob