# Error while docker run for Node JS application : Error: /usr/src/app/node\_modules/bcrypt/lib/binding/bcrypt\_lib.node: invalid ELF header

**URL:** <https://forums.docker.com/t/error-while-docker-run-for-node-js-application-error-usr-src-app-node-modules-bcrypt-lib-binding-bcrypt-lib-node-invalid-elf-header/80235>\
**Category:** General\
**Created:** [August 26, 2019, 4:36am UTC](https://forums.docker.com/t/error-while-docker-run-for-node-js-application-error-usr-src-app-node-modules-bcrypt-lib-binding-bcrypt-lib-node-invalid-elf-header/80235 "2019-08-26T04:36:33Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![swapwagh](https://avatars.discourse-cdn.com/v4/letter/s/e480ec/32.png) [@swapwagh](https://forums.docker.com/u/swapwagh)\
**Post date:** [August 26, 2019, 4:36am UTC](https://forums.docker.com/t/error-while-docker-run-for-node-js-application-error-usr-src-app-node-modules-bcrypt-lib-binding-bcrypt-lib-node-invalid-elf-header/80235/1 "2019-08-26T04:36:33Z")

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Hi All,

I am not sure if this is the right place to post this issue.

I am new to both Docker and Node JS and trying to develop one small node JS application which works fine in my local system but whenever I am trying to run a docker with my Node Js application I am getting below error::

Using ts-node version 8.0.3, typescript version 3.3.4000  
Error: /usr/src/app/node\_modules/bcrypt/lib/binding/bcrypt\_lib.node: invalid ELF header  
at Module.\_extensions…node (internal/modules/cjs/loader.js:977:18)  
at Object.nodeDevHook [as .node] (/usr/src/app/node\_modules/ts-node-dev/lib/hook.js:61:7)  
at Module.load (internal/modules/cjs/loader.js:790:32)  
at Function.Module.\_load (internal/modules/cjs/loader.js:703:12)  
at Module.require (internal/modules/cjs/loader.js:830:19)  
at require (internal/modules/cjs/helpers.js:68:18)  
at Object. (/usr/src/app/node\_modules/bcrypt/bcrypt.js:6:16)  
at Module.\_compile (internal/modules/cjs/loader.js:936:30)  
at Module.\_extensions…js (internal/modules/cjs/loader.js:947:10)  
at Object.nodeDevHook [as .js] (/usr/src/app/node\_modules/ts-node-dev/lib/hook.js:61:7)  
at Module.load (internal/modules/cjs/loader.js:790:32)  
at Function.Module.\_load (internal/modules/cjs/loader.js:703:12)  
at Module.require (internal/modules/cjs/loader.js:830:19)  
at require (internal/modules/cjs/helpers.js:68:18)  
at Object. (/usr/src/app/src/controllers/v0/users/routes/auth.router.ts:20:29)  
at Module.\_compile (internal/modules/cjs/loader.js:936:30)  
at Module.m.\_compile (/tmp/ts-node-dev-hook-3851647523043238.js:55:25)  
at Module.\_extensions…js (internal/modules/cjs/loader.js:947:10)  
at require.extensions. (/tmp/ts-node-dev-hook-3851647523043238.js:57:14)  
at Object.nodeDevHook [as .ts] (/usr/src/app/node\_modules/ts-node-dev/lib/hook.js:61:7)  
at Module.load (internal/modules/cjs/loader.js:790:32)  
at Function.Module.\_load (internal/modules/cjs/loader.js:703:12)  
[ERROR] 20:55:40 Error: /usr/src/app/node\_modules/bcrypt/lib/binding/bcrypt\_lib.node: invalid ELF header

Please let me know if you have any suggestions for it.

Thanks,  
SwapWagh

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<div class="post-metadata">

**Author:** ![kwabena53](https://sea3.discourse-cdn.com/docker/user_avatar/forums.docker.com/kwabena53/32/26784_2.png) [@kwabena53](https://forums.docker.com/u/kwabena53)\
**Post date:** [March 13, 2020, 5:22am UTC](https://forums.docker.com/t/error-while-docker-run-for-node-js-application-error-usr-src-app-node-modules-bcrypt-lib-binding-bcrypt-lib-node-invalid-elf-header/80235/2 "2020-03-13T05:22:30Z")

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1. Create a `.dockerignore` file in the root of your app and add: **node\_modules**