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fivdi / pigpio

Fast GPIO, PWM, servo control, state change notification and interrupt handling with Node.js on the Raspberry Pi
MIT License
945 stars 89 forks source link

Error: Module version mismatch. Expected 46, got 64. #84

Closed kueckermann closed 5 years ago

kueckermann commented 5 years ago

Hardward: Raspberry Pi 3 OS: Raspbian GNU/Linux 9 (stretch) Node: 10.16.3 Package: pigpio@2.0.0

Trying to test the package but it throw the following error upon require.

Error: Module version mismatch. Expected 46, got 64.
    at Error (native)
    at Object.Module._extensions..node (module.js:460:18)
    at Module.load (module.js:356:32)
    at Function.Module._load (module.js:311:12)
    at Module.require (module.js:366:17)
    at require (module.js:385:17)
    ...
kueckermann commented 5 years ago

Changing the version of Node js changes the expected version. Node v12.10 -> Error: Module version mismatch. Expected 46, got 72. Node v8.15.0 -> Error: Module version mismatch. Expected 46, got 57.

fivdi commented 5 years ago

This error message indicates that pigpio was installed (perhaps a long time ago) with Node.js 4 but a newer version of Node.js was then installed, i.e., Node.js 8, 10 or 12.

(Edit:: It's actually the other way around, i.e., pigpio was installed with Node.js 8, 10, or 12 but Node.js 4 was used at runtime.)

fivdi commented 5 years ago

Please reinstall pigpio after deciding which version of Node.js should be used.

kueckermann commented 5 years ago

@fivdi I am using pigpio for the first time and have reinstalled after each version change.

kueckermann commented 5 years ago

So I don't think it would be due to an old install.

fivdi commented 5 years ago

What's the output of the following command:

sudo node -v
kueckermann commented 5 years ago

You are right. v4.2.1 I notice the issue here is that node -v = v10.16.3 sudo node -v = v4.2.1

Any idea why?

kueckermann commented 5 years ago

Busy reading some forums to fix that sudo issue. Its because nvm is being used and not being used under sudo.

fivdi commented 5 years ago

The environment isn't setup correctly. There are two versions of Node.js installed. The normal user (I guess user pi) and the super user root have different PATHs. pi and root find different versions of Node.js.

fivdi commented 5 years ago

Try with:

sudo $(which node) app-name.js
kueckermann commented 5 years ago

Working now thanks. Solution I took was to remove node and npm from /usr/local/bin and create new links to the nvm versions using:

sudo ln -s "$NVM_DIR/versions/node/$(nvm version)/bin/node" "/usr/local/bin/node"
sudo ln -s "$NVM_DIR/versions/node/$(nvm version)/bin/npm" "/usr/local/bin/npm"