JavaScript heap out of memory Exception with Custom Builds

[casper123]

So I needed the Clipboard plugin to use for CKEditor I've in my angular application.

I followed all the steps from here (https://ckeditor.com/docs/ckeditor5/latest/builds/guides/development/custom-builds.html) and created a custom build with Clipboard plugin for ckeditor5-build-decoupled-document

Finally I import this newly created build in my angular application as shown here (https://ckeditor.com/docs/ckeditor5/latest/builds/guides/integration/frameworks/angular.html)

import * as CKEditor from "assets/js/ckeditor/ckeditor";
/** build couple document of ckeditor */
  public Editor: Object = CKEditor;

But now when I run the app using ng serve; I get this following error. I tried increasing --max-old-space-size but still nothing helps.

[email protected]:~/Documents/webapps/rhino$node --max-old-space-size=4096 node_modules/@angular/cli/bin/ng serve
15% building 43/44 modules 1 active ...bdulwahab/Documents/webapps/rhino/node_modules/sass-loader/dist/cjs.js??ref--13-3!/Users/abdulwahab/Documents/webapps/rhino/src/styles.scss
<--- Last few GCs --->

[1461:0x106801e00]   339706 ms: Mark-sweep 4046.9 (4135.5) -> 4034.7 (4135.8) MB, 1656.3 / 0.1 ms  (average mu = 0.322, current mu = 0.160) allocation failure scavenge might not succeed
[1461:0x106801e00]   342182 ms: Mark-sweep 4034.7 (4135.8) -> 4034.7 (4135.8) MB, 2476.3 / 0.1 ms  (average mu = 0.209, current mu = 0.000) allocation failure scavenge might not succeed

<--- JS stacktrace --->

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
 1: 0x1012e4da5 node::Abort() (.cold.1) [/usr/local/bin/node]
 2: 0x1000a6239 node::Abort() [/usr/local/bin/node]
 3: 0x1000a639f node::OnFatalError(char const*, char const*) [/usr/local/bin/node]
 4: 0x1001e9007 v8::Utils::ReportOOMFailure(v8::internal::Isolate*, char const*, bool) [/usr/local/bin/node]
 5: 0x1001e8fa3 v8::internal::V8::FatalProcessOutOfMemory(v8::internal::Isolate*, char const*, bool) [/usr/local/bin/node]
 6: 0x100397e95 v8::internal::Heap::FatalProcessOutOfMemory(char const*) [/usr/local/bin/node]
 7: 0x10039995a v8::internal::Heap::RecomputeLimits(v8::internal::GarbageCollector) [/usr/local/bin/node]
 8: 0x100395029 v8::internal::Heap::PerformGarbageCollection(v8::internal::GarbageCollector, v8::GCCallbackFlags) [/usr/local/bin/node]
 9: 0x1003928c1 v8::internal::Heap::CollectGarbage(v8::internal::AllocationSpace, v8::internal::GarbageCollectionReason, v8::GCCallbackFlags) [/usr/local/bin/node]
10: 0x1003932d2 v8::internal::Heap::CollectAllAvailableGarbage(v8::internal::GarbageCollectionReason) [/usr/local/bin/node]
11: 0x1003a121e v8::internal::Heap::AllocateRawWithRetryOrFailSlowPath(int, v8::internal::AllocationType, v8::internal::AllocationOrigin, v8::internal::AllocationAlignment) [/usr/local/bin/node]
12: 0x100369c5e v8::internal::FactoryBase<v8::internal::Factory>::NewRawTwoByteString(int, v8::internal::AllocationType) [/usr/local/bin/node]
13: 0x1005ff3a6 v8::internal::String::SlowFlatten(v8::internal::Isolate*, v8::internal::Handle<v8::internal::ConsString>, v8::internal::AllocationType) [/usr/local/bin/node]
14: 0x10071c689 v8::internal::Runtime_RegExpReplaceRT(int, unsigned long*, v8::internal::Isolate*) [/usr/local/bin/node]
15: 0x100a7a239 Builtins_CEntry_Return1_DontSaveFPRegs_ArgvOnStack_NoBuiltinExit [/usr/local/bin/node]
Abort trap: 6

Deleting and reinstalling node_modules also gives the same error.

I also checked the custom build CKEditor; it works fine on sample page without any error.

[AbdallahAbdedaiem]

Did you find how to solve this issue?

[AbdallahAbdedaiem]

I tried also such commands, the application works, but it consumes a lot of ram, and always laggy. Please Let me know if you found a solution to this.