npm error "Keccak bindings compilation fail." while installing truffle

Question

I tried to install Truffle, but then I got this error:

$ npm install -g truffle
    C:\Users\dany.vandermeij\AppData\Roaming\npm\truffle -> C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\build\cli.bundled.js

> [email protected] install C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak
> npm run rebuild || echo "Keccak bindings compilation fail. Pure JS implementation will be used."


> [email protected] rebuild C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak
> node-gyp rebuild


C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak>if not defined npm_config_node_gyp (node "C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\\..\..\node_modules\node-gyp\bin\node-gyp.js" rebuild )  else (node "C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild )
gyp ERR! configure error
gyp ERR! stack Error: Command failed: C:\Users\dany.vandermeij\AppData\Local\Programs\Python\Python37-32\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack   File "<string>", line 1
gyp ERR! stack     import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack                                ^
gyp ERR! stack SyntaxError: invalid syntax
gyp ERR! stack
gyp ERR! stack     at ChildProcess.exithandler (child_process.js:275:12)
gyp ERR! stack     at emitTwo (events.js:126:13)
gyp ERR! stack     at ChildProcess.emit (events.js:214:7)
gyp ERR! stack     at maybeClose (internal/child_process.js:925:16)
gyp ERR! stack     at Process.ChildProcess._handle.onexit (internal/child_process.js:209:5)
gyp ERR! System Windows_NT 10.0.17134
gyp ERR! command "C:\\Program Files\\nodejs\\node.exe" "C:\\Users\\dany.vandermeij\\AppData\\Roaming\\npm\\node_modules\\npm\\node_modules\\node-gyp\\bin\\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\dany.vandermeij\AppData\Roaming\npm\node_modules\truffle\node_modules\keccak
gyp ERR! node -v v8.11.4
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
npm ERR! code ELIFECYCLE
npm ERR! errno 1
npm ERR! [email protected] rebuild: `node-gyp rebuild`
npm ERR! Exit status 1
npm ERR!
npm ERR! Failed at the [email protected] rebuild script.
npm ERR! This is probably not a problem with npm. There is likely additional logging output above.

npm ERR! A complete log of this run can be found in:
npm ERR!     C:\Users\dany.vandermeij\AppData\Roaming\npm-cache\_logs\2019-01-22T09_38_03_836Z-debug.log
"Keccak bindings compilation fail. Pure JS implementation will be used."
+ [email protected]
added 89 packages from 304 contributors and updated 1 package in 14.582s

I tested the truffle commands and they seem to work, but I dont know why I get this error...

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Thank you for your help

Answer 1

Use npm install -g truffle --unsafe-perm to install truffle this is probably happening due to a syntax issue of keccak which shouldn't affect functionality.

UPDATE (Windows)

npm install --global windows-build-tools