NativeScript has just faced a critical issue: an Uncaught ReferenceError has occurred stating that the variable __UI_USE_EXTERNAL_RENDERER__ is not

While working on iOS on my Mac, I encountered an unexpected error.

***** Fatal JavaScript exception - application has been terminated. ***** 
NativeScript encountered a fatal error: Uncaught ReferenceError: __UI_USE_EXTERNAL_RENDERER__ is not defined
at
(file: src/packages/core/bundle-entry-points.ts:7:0)
at ../node_modules/@nativescript/core/bundle-entry-points.js(file:///app/vendor.js:2442:30)
at __webpack_require__(file: src/webpack/bootstrap:816:0)
at fn(file: src/webpack/bootstrap:120:0)
at (file: src/main.ts:1:35)
at ./main.ts(file:///app/bundle.js:6855:30)
at __webpack_require__(file: src/webpack/bootstrap:816:0)
at checkDeferredModules(file: src/webpack/bootstrap:43:0)
at webpackJsonpCallback(file: src/webpack/bootstrap:30:0)
at (file:///app/bundle.js:2:57)
at require(:1:137)
(CoreFoundation) *** Terminating app due to uncaught exception 'NativeScript encountered a fatal error: Uncaught ReferenceError: __UI_USE_EXTERNAL_RENDERER__ is not defined
at
(file: src/packages/core/bundle-entry-points.ts:7:0)
at ../node_modules/@nativescript/core/bundle-entry-points.js(file:///app/vendor.js:2442:30)
at __webpack_require__(file: src/webpack/bootstrap:816:0)
at fn(file: src/webpack/bootstrap:120:0)
at (file: src/main.ts:1:35)
at ./main.ts(file:///app/bundle.js:6855:30)
at __webpack_require__(file: src/webpack/bootstrap:816:0)
at checkDeferredModules(file: src/webpack/bootstrap:43:0)
at webpackJsonpCallback(file: src/webpack/bootstrap:30:0)
at (file:///app/bundle.js:2:57)
at require(:1:137)
', reason: '(null)'
*** First throw call stack:
(
0   CoreFoundation                      0x00007fff20422fba __exceptionPreprocess + 242
1   libobjc.A.dylib                     0x00007fff20193ff5 objc_exception_throw + 48
2   NativeScript                        0x0000000106c2d914 _ZN3tns21NativeScriptException15OnUncaughtErrorEN2v8<…>

Everything was functioning perfectly yesterday, so this error caught me off guard. I attempted to clean the platforms and upgrade to a newer version, but none of that resolved the issue.

As far as I can tell, nothing has been altered.

I also experimented with other branches, but the error persists there as well.

Any advice?

javascriptiosmobilenativescriptnativescript-vue

Answer №1

It could be a potential issue related to the version of @nativescript/webpack you are using. If you have recently upgraded to NativeScript 8.1, it is advisable to update your @nativescript/webpack version to 5.0.0 as mentioned here

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