Node.bcrypt.js: [Solved] bcrypt fails at the install script at node-gyp rebuild

[conor909]

I get the folowing errors when trying to run npm install with "bcrypt": "^0.8.6" as a devDependency

error [email protected] install: `node-gyp rebuild`
error Exit status 1
error Failed at the [email protected] install script.
error This is most likely a problem with the bcrypt package,
error not with npm itself.
error Tell the author that this fails on your system:
error     node-gyp rebuild
error You can get their info via:
error     npm owner ls bcrypt
error There is likely additional logging output above.
error System Windows_NT 10.0.10586
error command "C:\\Program Files\\nodejs\\node.exe" "C:\\Program Files\\nodejs\\node_modules\\npm\\bin\\npm-cli.js" "install"
error cwd C:\Users\username\Documents\my-app
error node -v v4.2.4
error npm -v 1.4.3
error code ELIFECYCLE
verbose exit [ 1, true ]

Thanks!

[conor909]

@defunctzombie why was this closed?

[conor909]

For anyone else struggling with this:
http://stackoverflow.com/questions/29320201/error-installing-bcrypt-with-npm

I'm now using the bcrypt-nodejs library.
npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

I've been using it without any issues for a while now.

[andrewjmead]

I have the same issue. Shame to to see it getting closed without a conversation. Thanks for the info @conor909.

[conor909]

@andrewjmead I just had to edit my previous comment, it's not the same api, you'll need to update your code.

[bmorelli25]

I've been trying to solve this for hours...

Finally working! Thank you @conor909 for the help, your solution worked for me.

[scheung38]

Thanks Conor

I had issue

https://forums.meteor.com/t/another-mup-failed-deployed-any/29277

and now this solved it for me:

$npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

[shashidharhr]

@conor909
you f**ing life saver man I almost died whole day trying to solve this shit. I love you so much <3.

[iamdarknight]

Spent 5 hours trying to get bcrypt to work. SO MUCH THANX HACKER!

[conor909]

I think your file in newproject/mean/module 3/start/app.js on line 17 is trying to import or require bcrypt. If that's the case change "bcrypt" to "bcrypt-nodejs"

[tanc]

You need to install with npm version 3: https://github.com/RocketChat/Rocket.Chat/issues/5210
npm install -g npm@3

[fp5885]

Thanks to tanc. I'm installing kibana4.5 and was getting hung on the bcrypt dependency. npm install -g npm@3 worked for me.

[adammoisa]

@conor909 Thumbs up, smiley, party, and heart for you!

[arorashivani]

on mac os following solution worked for me
Install Xcode
Run sudo xcode-select -s /Applications/Xcode.app/Contents/Developer

sources https://github.com/nodejs/node-gyp/issues/569

[azarus]

Horrible that this is an one year old issue and is still out there causing pain (Y)

[hofman-p]

Still causes issues in 2018

[recrsn]

@hofman-p This happens if your machine is incorrectly setup. We have comprehensive installation instructions https://github.com/kelektiv/node.bcrypt.js/wiki/Installation-Instructions

Please read them before opening an issue, if it is an obvious case, the issue will be closed without any information, or a link at most depending on the maintainers' mood

[eduarduo]

I had the same error and verified that I was using node10, I changed via nvm to node9 and it worked

[DeepakDonde]

My solution:
1)Go to visual studio code
2)Open package.json
3)Delete bcrypt dependency from package.json
4)Now open terminal and run npm install bcrypt
5)Restart visual studio code(Always a good practice if things not working :))

[aardvarkk]

I followed all of the installation instructions at the above link using node 10 and Ubuntu 18.04 and am still having errors building bcrypt.

[sayhicoelho]

migrated to https://www.npmjs.com/package/bcryptjs and now everything is working

[spences10]

Changing to node 9 fixed the issue for me 👍

[LukeV111]

What solved the issue for me was changing my XCode command Line Tools for 10.1 to 9.4 (I have both versions installed).

If you have both versions installed you can do this by going to Xcode > Preferences > Locations and switching you Command Line Tools there. It seems XCOde 10+ is currently incompatible.

[Nchaka]

The problem is, installing the bcrypt module re-launches the npm install command after you've explicitly did:

npm install

Note: For some packages. You'll notice bcrypt has its own node_modules folder as a module itself.

To remedy the situation of node-gyp or node-pre-gyp being locked out of the equation, you first need to be sure to NOT do sudo as in:

sudo npm install

But the trick is, you do need sudo. Therefore you'll have to go with this document https://docs.npmjs.com/resolving-eacces-permissions-errors-when-installing-packages-globally

Once that is done, you'll be able to simply do npm install with the proper privileges, and rebuild successfully.

If you are using nvm, you'll have to set the prefix as recommended here: https://stackoverflow.com/questions/34718528/nvm-is-not-compatible-with-the-npm-config-prefix-option

[bidipeppercrap]

SOLUTION: (worked for me)

Install C++ Compiler, make, and Python 2 (Well Linux has it already).
https://github.com/kelektiv/node.bcrypt.js/wiki/Installation-Instructions#fedora

[arulk8]

i installed bcrypt which is compatible to node version given in there website. it worked for me
https://www.npmjs.com/package/bcrypt

[Ishaaqh]

If u are using nodejs then use sudo npm install --save bcryptjs.and restart the server.

[mlnima]

please use this package to solve the problem
https://www.npmjs.com/package/bcryptjs

[rickithadi]

This seems to have something to do with npm versions. i had the problem running 11.6.0 but it works fine with 6.1.0, i just used nvm to change versions and npm installed again

[mfc3370]

@conor909 still thanking u in 2019. IS it not possible to collab with the bcrypt module programmers? It's crazy everyone using mac has to first npm i bcrypt, then fall into the pit and start looking for a solution.

[akhilasok]

install npm i node-pre-gyp after that use npm i bcrypt

[KingZee]

This is an issue with node-gyp, it doesn't work with Python 3+.

sudo apt install python2.7    
ln -s /usr/bin/python2.7 /usr/bin/python

Install python 2.7 and set its executable as the default, then install again. If you need python3 later you can always replace the symbolic link.

[ihemantkumar]

npm ERR! errno 1
npm ERR! [email protected] install: `node-pre-gyp install --fallback-to-build`
npm ERR! Exit status 1
npm ERR! 
npm ERR! Failed at the [email protected] install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

I am having this same issue in node v 10.14, 10.15, 10.16. I have tried your above mentioned solutions, but none is working for me.

[ihemantkumar]

This seems to have something to do with npm versions. i had the problem running 11.6.0 but it works fine with 6.1.0, i just used nvm to change versions and npm installed again

If this is the case, how to find which npm version is suitable?

[iamnoel]

What an interesting experience. I was getting tons of errors while trying to install for quite a while; at some point I did an npm install node-gyp... and I'm not sure if I added anything else.. still getting various errors until eventually when I was about to give up.. I tried
npm install --save bcrypt
That solved it for me. Not sure if it will help anyone else but just adding the --save flag allowed me to install bcrypt without all of the errors I was getting before (which were very similar to MANY of the errors I see above)

Good luck everyone!

[rehan-sattar]

Still causing this error in 2019.I just migrated to bcryptjs, worked 100% fine.
link to the package: https://www.npmjs.com/package/bcryptjs

[aikhan]

on mac os following solution worked for me
Install Xcode
Run sudo xcode-select -s /Applications/Xcode.app/Contents/Developer

sources https://github.com/nodejs/node-gyp/issues/569

It worked it worked :D

[SachindeepRedsky]

my solution is:
Use this command
sudo yum groupinstall 'Development Tools'

[algaly]

First uninstall bcrypt
npm uninstall --save bcrypt
then:
npm install --save bcryptjs

see : link

[PolymathWhiz]

Best solution is to use the node version compatible with the bcrypt version

[imrizwan]

Still causing this error in 2020 :/

[Vanguard90]

Best solution is to use the node version compatible with the bcrypt version

For anyone reading this thread, this, in combination of:

This happens if your machine is incorrectly setup. We have comprehensive installation instructions https://github.com/kelektiv/node.bcrypt.js/wiki/Installation-Instructions

Please read them before opening an issue, if it is an obvious case, the issue will be closed without any information, or a link at most depending on the maintainers' mood

solved my problem. I'm currently using Node version 12.15 by the way. Upgraded bcrypt from 1.0.3 to 3.0.8. Everything works without any problems.

[sanjay-nag]

I'm still facing this issue!

Bcrypt - 3.0.5
Node - 13.12.0

Tried this (https://github.com/kelektiv/node.bcrypt.js/wiki/Installation-Instructions) didn't work!

Stack trace-

make: Entering directory /home/ec2-user/kafka-backend/node_modules/bcrypt/build' CXX(target) Release/obj.target/bcrypt_lib/src/blowfish.o CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt.o CXX(target) Release/obj.target/bcrypt_lib/src/bcrypt_node.o In file included from /home/ec2-user/.cache/node-gyp/13.12.0/include/node/node.h:67:0, from ../node_modules/nan/nan.h:53, from ../src/bcrypt_node.cc:1: /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:1576:58: warning: ‘deprecated’ attribute directive ignored [-Wattributes] Local<Value> export_value); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:5073:30: warning: ‘deprecated’ attribute directive ignored [-Wattributes] inline bool IsNeuterable() const { ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:5087:22: warning: ‘deprecated’ attribute directive ignored [-Wattributes] inline void Neuter() { Detach(); } ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:5550:76: warning: ‘deprecated’ attribute directive ignored [-Wattributes] ArrayBufferCreationMode mode = ArrayBufferCreationMode::kExternalized); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6938:28: warning: ‘deprecated’ attribute directive ignored [-Wattributes] size_t code_range_size() const { return code_range_size_ / kMB; } ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6940:46: warning: ‘deprecated’ attribute directive ignored [-Wattributes] void set_code_range_size(size_t limit_in_mb) { ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6944:38: warning: ‘deprecated’ attribute directive ignored [-Wattributes] size_t max_semi_space_size_in_kb() const; ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6946:56: warning: ‘deprecated’ attribute directive ignored [-Wattributes] void set_max_semi_space_size_in_kb(size_t limit_in_kb); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6948:31: warning: ‘deprecated’ attribute directive ignored [-Wattributes] size_t max_old_space_size() const { return max_old_generation_size_ / kMB; } ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6950:49: warning: ‘deprecated’ attribute directive ignored [-Wattributes] void set_max_old_space_size(size_t limit_in_mb) { ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6954:31: warning: ‘deprecated’ attribute directive ignored [-Wattributes] size_t max_zone_pool_size() const { return max_zone_pool_size_; } ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:6956:43: warning: ‘deprecated’ attribute directive ignored [-Wattributes] void set_max_zone_pool_size(size_t bytes) { max_zone_pool_size_ = bytes; } ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:7730:75: warning: ‘deprecated’ attribute directive ignored [-Wattributes] V8_DEPRECATED("Use version with parameter.") virtual void TraceEpilogue() {} ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:7785:48: warning: ‘deprecated’ attribute directive ignored [-Wattributes] const v8::TracedGlobal<v8::Value>& handle); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:8455:36: warning: ‘deprecated’ attribute directive ignored [-Wattributes] Local<Context> GetEnteredContext(); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:8768:75: warning: ‘deprecated’ attribute directive ignored [-Wattributes] void AddMicrotasksCompletedCallback(MicrotasksCompletedCallback callback); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:8776:78: warning: ‘deprecated’ attribute directive ignored [-Wattributes] void RemoveMicrotasksCompletedCallback(MicrotasksCompletedCallback callback); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:9207:59: warning: ‘deprecated’ attribute directive ignored [-Wattributes] static void SetNativesDataBlob(StartupData* startup_blob); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:9220:61: warning: ‘deprecated’ attribute directive ignored [-Wattributes] static void SetFlagsFromString(const char* str, int length); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:9305:70: warning: ‘deprecated’ attribute directive ignored [-Wattributes] const char* snapshot_blob); ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8.h:9341:75: warning: ‘deprecated’ attribute directive ignored [-Wattributes] static bool TryHandleSignal(int signal_number, void* info, void* context); ^ In file included from /home/ec2-user/.cache/node-gyp/13.12.0/include/node/node.h:72:0, from ../node_modules/nan/nan.h:53, from ../src/bcrypt_node.cc:1: /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8-platform.h:371:71: warning: ‘deprecated’ attribute directive ignored [-Wattributes] virtual void CallOnForegroundThread(Isolate* isolate, Task* task) = 0; ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8-platform.h:381:73: warning: ‘deprecated’ attribute directive ignored [-Wattributes] double delay_in_seconds) = 0; ^ /home/ec2-user/.cache/node-gyp/13.12.0/include/node/v8-platform.h:392:75: warning: ‘deprecated’ attribute directive ignored [-Wattributes] virtual void CallIdleOnForegroundThread(Isolate* isolate, IdleTask* task) { ^ In file included from /usr/include/c++/4.8.5/cassert:43:0, from /home/ec2-user/.cache/node-gyp/13.12.0/include/node/node_object_wrap.h:26, from ../node_modules/nan/nan.h:55, from ../src/bcrypt_node.cc:1: ../node_modules/nan/nan_object_wrap.h: In destructor ‘virtual Nan::ObjectWrap::~ObjectWrap()’: ../node_modules/nan/nan_object_wrap.h:24:25: error: ‘class Nan::Persistent<v8::Object>’ has no member named ‘IsNearDeath’ assert(persistent().IsNearDeath()); ^ ../node_modules/nan/nan_object_wrap.h: In static member function ‘static void Nan::ObjectWrap::WeakCallback(const v8::WeakCallbackInfo<Nan::ObjectWrap>&)’: ../node_modules/nan/nan_object_wrap.h:127:26: error: ‘class Nan::Persistent<v8::Object>’ has no member named ‘IsNearDeath’ assert(wrap->handle_.IsNearDeath()); ^ make: *** [Release/obj.target/bcrypt_lib/src/bcrypt_node.o] Error 1 make: Leaving directory/home/ec2-user/kafka-backend/node_modules/bcrypt/build'
gyp ERR! build error
gyp ERR! stack Error: make failed with exit code: 2
gyp ERR! stack at ChildProcess.onExit (/home/ec2-user/.nvm/versions/node/v13.12.0/lib/node_modules/npm/node_modules/node-gyp/lib/build.js:194:23)
gyp ERR! stack at ChildProcess.emit (events.js:315:20)
gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:275:12)
gyp ERR! System Linux 4.14.171-105.231.amzn1.x86_64
gyp ERR! command "/home/ec2-user/.nvm/versions/node/v13.12.0/bin/node" "/home/ec2-user/.nvm/versions/node/v13.12.0/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js" "build" "--fallback-to-build" "--module=/home/ec2-user/kafka-backend/node_modules/bcrypt/lib/binding/bcrypt_lib.node" "--module_name=bcrypt_lib" "--module_path=/home/ec2-user/kafka-backend/node_modules/bcrypt/lib/binding" "--napi_version=6" "--node_abi_napi=napi" "--napi_build_version=0" "--node_napi_label=node-v79"
gyp ERR! cwd /home/ec2-user/kafka-backend/node_modules/bcrypt
gyp ERR! node -v v13.12.0
gyp ERR! node-gyp -v v5.1.0
gyp ERR! not ok
node-pre-gyp ERR! build error
node-pre-gyp ERR! stack Error: Failed to execute '/home/ec2-user/.nvm/versions/node/v13.12.0/bin/node /home/ec2-user/.nvm/versions/node/v13.12.0/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build --fallback-to-build --module=/home/ec2-user/kafka-backend/node_modules/bcrypt/lib/binding/bcrypt_lib.node --module_name=bcrypt_lib --module_path=/home/ec2-user/kafka-backend/node_modules/bcrypt/lib/binding --napi_version=6 --node_abi_napi=napi --napi_build_version=0 --node_napi_label=node-v79' (1)
node-pre-gyp ERR! stack at ChildProcess. (/home/ec2-user/kafka-backend/node_modules/node-pre-gyp/lib/util/compile.js:83:29)
node-pre-gyp ERR! stack at ChildProcess.emit (events.js:315:20)
node-pre-gyp ERR! stack at maybeClose (internal/child_process.js:1026:16)
node-pre-gyp ERR! stack at Process.ChildProcess._handle.onexit (internal/child_process.js:286:5)
node-pre-gyp ERR! System Linux 4.14.171-105.231.amzn1.x86_64
node-pre-gyp ERR! command "/home/ec2-user/.nvm/versions/node/v13.12.0/bin/node" "/home/ec2-user/kafka-backend/node_modules/.bin/node-pre-gyp" "install" "--fallback-to-build"
node-pre-gyp ERR! cwd /home/ec2-user/kafka-backend/node_modules/bcrypt
node-pre-gyp ERR! node -v v13.12.0
node-pre-gyp ERR! node-pre-gyp -v v0.12.0
node-pre-gyp ERR! not ok
Failed to execute '/home/ec2-user/.nvm/versions/node/v13.12.0/bin/node /home/ec2-user/.nvm/versions/node/v13.12.0/lib/node_modules/npm/node_modules/node-gyp/bin/node-gyp.js build --fallback-to-build --module=/home/ec2-user/kafka-backend/node_modules/bcrypt/lib/binding/bcrypt_lib.node --module_name=bcrypt_lib --module_path=/home/ec2-user/kafka-backend/node_modules/bcrypt/lib/binding --napi_version=6 --node_abi_napi=napi --napi_build_version=0 --node_napi_label=node-v79' (1)
npm WARN [email protected] No description
npm WARN [email protected] No repository field.

npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] install: node-pre-gyp install --fallback-to-build
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] install script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

[recrsn]

@sanjay-nag Use bcrypt >= v3.0.8 with NodeJS 13

[sanjay-nag]

@sanjay-nag Use bcrypt >= v3.0.8 with NodeJS 13
@agathver, thank you for the reply. It worked when I downgraded my node version to 10.x.x

[salsa-project]

For anyone else struggling with this:
http://stackoverflow.com/questions/29320201/error-installing-bcrypt-with-npm

I'm now using the bcrypt-nodejs library.
npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

I've been using it without any issues for a while now.

Ty .. working great

[AzeemAleem]

@conor909 Thanks Dear
Successfully run the code

[JavaLavaMT]

@tanc > pm install -g npm@3

solid fix!

[yashi32]

For anyone else struggling with this:
http://stackoverflow.com/questions/29320201/error-installing-bcrypt-with-npm

I'm now using the bcrypt-nodejs library.
npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

I've been using it without any issues for a while now.

@conor909 u saved the day man!!!

[PaulMabille]

I had a similar issue in a project using bcrypt. It appears that it came from the bcrypt version in my package.json file. I solved it by reinstalling bcrypt. I would not recommend using bcrypt-nodejs as it is depreciated.

[yashi32]

@PaulMabille can you tell the alternative to bcrypt.

[PaulMabille]

@yashi32 i didn't use an alternative, i reinstalled it. It was the old version that was causing the issue.

[netlander]

This bcrypt module has been a pain for so many years, unbelievable!

[mohammad3developer]

For anyone else struggling with this:
http://stackoverflow.com/questions/29320201/error-installing-bcrypt-with-npm

I'm now using the bcrypt-nodejs library.
npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

I've been using it without any issues for a while now.

THHAAAAAAAAAANKS A LOT
IT'S WOOOOOORK FINALYYYYY

[xyanlucasx]

Ubuntu 18.04

it worked for me -> sudo apt-get install build-essential

no other solution present here had worked.

It was a new machine (azure VM) and I had forgotten and installed this package.

[joaogabrieljs]

Ubuntu 18.04

it worked for me -> sudo apt-get install build-essential

no other solution present here had worked.

It was a new machine (azure VM) and I had forgotten and installed this package.

This works for me on Ubuntu 18.04 EC2 Instance. Thanks!

[nodesl]

For anyone else struggling with this:
http://stackoverflow.com/questions/29320201/error-installing-bcrypt-with-npm

I'm now using the bcrypt-nodejs library.
npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

I've been using it without any issues for a while now.

if anyone still struggle with bcrypt on Amazon Linux, try bcryptjs. coz bcrypt-nodejs has deprecated now

npm install --save bcryptjs && npm uninstall --save bcrypt

replace your const bcrypt = require('bcrypt') with const bcrypt = require('bcryptjs') and everything will work fine : )

[FahmyChaabane]

Same goes for me as well in 2021 :
Ubuntu 20.04, Node v14.15.5
"bcryptjs" fixed everything. wonder why there're two of them.
Also i tried "bcrypt" in a window machine, same version of node and it was installed successfully.

[QiangGuZi]

still causing this error in 2021

[haochangindependentsolutions]

Thanks Conor

I had issue

https://forums.meteor.com/t/another-mup-failed-deployed-any/29277

and now this solved it for me:

$npm install --save bcrypt-nodejs && npm uninstall --save bcrypt

You don't how long it takes for me to find this solution. only this works for me.
Tried so many ways and none of them works.
Thanks.

[youds]

Reinstalling worked for me, code modifications weren't advisable. Using AlmaLinux 'dnf install python3-bcrypt' fixed the problems.

[bttger]

My problem was that node-gyp always fell back to using python 3 instead of 2. I simply ran a node container to install my dependencies including bcrypt so that I had not to install or/and change other stuff on my Ubuntu/Debian machine.

$ sudo docker run -v /home/tom/Documents/my-node-server/:/home/ -it --rm --name install-deps node:14 sh
$ cd home
$ npm ci
$ exit

[ArthurBrito]

For my docker image I had to run that before the npm i:

RUN apk add --no-cache --virtual .gyp \
        python \
        make \
        g++ \
    && apk del .gyp

for my computer (linux mint): sudo apt-get install build-essential

[kanlanc]

I got this error while installing in docker and for me updating the version of bcrypt to 5.0.0 in package.json worked for me.

[yrjkqq]

maybe you set wrong node_gyp config, i just use npm config set node_gyp /usr/local/bin/node-gyp, and then the probleam solved.

[solomen5555]

The solution to this error is :
First *npm uninstall bcrypt* or npm uninstall bcrypt-nodejs ( if bcrypt or bcrypt-nodejs exist in package.json
Then npm install bcryptjs
I try to use bcrypt-nodejs but it only helps to push to heroku without error , but it will give error when hashing and genSalt ,
I think npm install bcryptjs is the best solution

[sunsetjesus]

works with node - v14.17.0 npm - v6.14.13

[dantaeusb]

I don't think replacing it with another solution is a proper fix. As I understand, bcrypt-nodejs/bcryptjs is a much slower alternative.

For me, carefully following readme's helped narrow down the issue, so I tl;dr it here:
1) Check that you have make, build-essential (or gcc I guess), python installed (other packages for other OSes, like cpp redist for windows);
2) Check that correct version requested according to compatibility table in repo readme. (i.e. 3.0.6+ for node 12+).

After correcting packages and versions, the package was installed without any problems. Hope that helps someone who was brought here by Google like me.

By the way, wiki page mentioned here: https://www.npmjs.com/package/bcrypt-nodejs does not exit.