Suggested fixes: updating Gatsby and especially updating netlify-cms-app. Then to launch the app I serve -s build (npm install -g serve if you need it) and it launches the process using about 28MB RAM. Enter your email address to subscribe to this blog and receive notifications of new posts by email. Q: How do I fix a pipeline failure with the message 'FATAL ERROR: CALL_AND_RETRY_LAST Allocation failed - JavaScript heap out of memory'? It can be frustrating to debug for a few reasons. After googling Ive seen. JavaScript Heap Out Of Memory Error - Felix Gerschau If this is the case for you. javascript heap out of memory npm run build Code Example souqi@1.0.0 start: nps "build" npm ERR! You should set this with NODE_OPTIONS environment variable. All Languages >> Javascript >> javascript heap out of memory npm "javascript heap out of memory npm" Code Answer. Tooling suggestions for excessive memory usage. 解决方案：使用 increase-memory-limit 插件，增加node服务器内存限制. Ineffective mark-compacts near heap limit Allocation failed ... All test suites on my project might take more than 4 hours for complete. Node.js実行中に「JavaScript heap out of memory」が発生する FATAL ERROR JavaScript heap out of memory when using any npm command - NodeJS [ Glasses to protect eyes while coding : https://amzn.to/3N1ISWI ] FATAL ERROR. Use the npm install to Heap Out of Memory If you're having trouble installing a package with npm or yarn, you can temporarily get around the memory limit by installing the package as follows: node --max-old-space-size=4096 $ (which npm) install -g nextawesomelib Write for us DelftStack articles are written by software geeks like you. To set this variable, simply run set NODE_OPTIONS=--max_old_space_size=8192. This is probably not a problem with npm. ng node --max_old_space_size=8192 && ng build --prod. $ unset CI $ npm install --progress=false uws@9.14.0 install /builds/mukundonline/tya-operation/node_modules/uws node-gyp rebuild > build_log.txt 2> 12. joaopribs. JavaScript heap out of memory : learnjavascript If you still see the heap out of memory error, then you may need to increase the heap size even more. where the JavaScript objects live), and the --max-old-space-size flag controls its maximum size.