安装node v10.14.2 后

启动公司的VUE项目

使用命令npm run dev 命令

报错：

<--- Last few GCs --->

[20940:00000244699848E0]   215872 ms: Scavenge 1690.2 (1836.4) -> 1679.6 (1836.4) MB, 5.4 / 0.7 ms  (average mu = 0.266, current mu = 0.253) allocation failure
[20940:00000244699848E0]   216022 ms: Scavenge 1699.5 (1844.0) -> 1682.3 (1837.9) MB, 9.8 / 4.0 ms  (average mu = 0.266, current mu = 0.253) allocation failure
[20940:00000244699848E0]   216476 ms: Scavenge 1694.6 (1837.9) -> 1685.7 (1837.9) MB, 15.7 / 0.3 ms  (average mu = 0.266, current mu = 0.253) external memory pressure


<--- JS stacktrace --->

FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of memory
 1: 00007FF6806D401F v8::internal::CodeObjectRegistry::~CodeObjectRegistry+112511
 2: 00007FF680663146 DSA_meth_get_flags+65542
 3: 00007FF680663FFD node::OnFatalError+301
 4: 00007FF680F95ADE v8::Isolate::ReportExternalAllocationLimitReached+94
 5: 00007FF680F8000D v8::SharedArrayBuffer::Externalize+781
 6: 00007FF680E235FC v8::internal::Heap::EphemeronKeyWriteBarrierFromCode+1468
 7: 00007FF680E302A9 v8::internal::Heap::PublishPendingAllocations+1129
 8: 00007FF680E2D27A v8::internal::Heap::PageFlagsAreConsistent+2842
 9: 00007FF680E1FEF9 v8::internal::Heap::CollectGarbage+2137
10: 00007FF680E2879B v8::internal::Heap::GlobalSizeOfObjects+331
11: 00007FF680E6ECCB v8::internal::StackGuard::HandleInterrupts+891
12: 00007FF680B776D6 v8::internal::DateCache::Weekday+8630
13: 00007FF6810234B1 v8::internal::SetupIsolateDelegate::SetupHeap+494417
14: 000002446C59367C
Done in 218.33s.

看了很多解决办法：

解决方案1：通过 increase-memory-limit 插件
        安装插件：npm install -g increase-memory-limit
        执行命令：npx cross-env LIMIT=4096 increase-memory-limit
来源:FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out of me-CSDN博客

解决方案2：设置max-old-space-size即可。在工程目录node_modules.bin下找到umi.cmd文件，替换下面代码，重新启动即可。
 

@IF EXIST "%~dp0\node.exe" (
  "%~dp0\node.exe" --max_old_space_size=8192 "%~dp0\..\umi\bin\umi.js" %*
) ELSE (
  @SETLOCAL
  @SET PATHEXT=%PATHEXT:;.JS;=;%
  node  --max_old_space_size=8192 "%~dp0\..\umi\bin\umi.js" %*
)

来源：FATAL ERROR: Ineffective mark-compacts near heap limit Allocation failed - JavaScript heap out..._画画认真学习呀的博客-CSDN博客解决方案3：环境变量中设置max-old-space-size即可

个人推荐第三种，不影响项目，且通用