Issue
I am getting the following error while using npm start
for my angular pages.
C:\TPO\Client\Angular>ng serve
Your global Angular CLI version (1.3.2) is greater than your local
version (1.0.4). The local Angular CLI version is used.
To disable this warning use "ng set --global warnings.versionMismatch=false".
** NG Live Development Server is listening on localhost:4200, open your browser on http://localhost:4200 **
10% building modules 4/4 modules 0 active
<--- Last few GCs --->
118169 ms: Mark-sweep 1348.4 (1404.3) -> 1348.1 (1404.3) MB, 1338.9 / 0.0 ms [allocation failure] [GC in old space requested].
119374 ms: Mark-sweep 1348.1 (1404.3) -> 1348.1 (1404.3) MB, 1204.7 / 0.0 ms [allocation failure] [GC in old space requested].
121097 ms: Mark-sweep 1348.1 (1404.3) -> 1362.7 (1403.3) MB, 1723.2 / 0.0 ms [last resort gc].
122416 ms: Mark-sweep 1362.7 (1403.3) -> 1377.4 (1403.3) MB, 1317.9 / 0.0 ms [last resort gc].
<--- JS stacktrace --->
==== JS stack trace =========================================
Security context: 0000034B7C13FA99 <JS Object>
1: set [native collection.js:~252] [pc=00000174AF1BC2E1] (this=000003AD36FBC469 <a Map with map 0000002CF18113B1>,r=000002D7A3418CD9 <String[12]: 32741,580445>,z=1)
2: /* anonymous */ [C:\TPO\Client\Angular\node_modules\typescript\lib\typescript.js:~2177] [pc=00000174ADC9EBD0] (this=000001D0EA536CE1 <JS Global Object>,value=1,key=000002D7A3418CD9 <String[12]: 32741,580445>)
3: arg...
FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory
Solution
Unless there is something wrong with your application, the simplest way to get rid of the problem (as suggested by this answer) is to increase heap size for node.js
On Windows this can be done by navigating to
C:\Users\your_user_name\%AppData%\Roaming\npm
and then editing your ng.cmd
in there:
@IF EXIST "%~dp0\node.exe" (
"%~dp0\node.exe" --max_old_space_size=4096 "%~dp0\node_modules\@angular\cli\bin\ng" %*
) ELSE (
@SETLOCAL
@SET PATHEXT=%PATHEXT:;.JS;=;%
node --max_old_space_size=4096 "%~dp0\node_modules\@angular\cli\bin\ng" %*
)
The --max_old_space_size=4096
sets the heap size for node's V8 engine to corresponding value in MBs (in our case this is 4096, but probably you may fine-tune it depending on your workstation's capabilities) instead of default value of 1400 MB
Answered By - Kostiantyn
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