Cannot install version 9.2.8 on Windows 10

[tectech]

Hi, I'm trying hours to install the current version (9.2.8) on a new NODE project on Windows 10. I didn't have previously any problem with version 9.0.2 (at the time that was the default release version). Previously I didn't have any issue with just adding the reference in Visual Studio. However, when I started a new project now, Visual Studio simply refused to add the reference. When I searched the roots I started experimenting with the command line to get more related info and error messages. I've ended up after installing Python with error message of the Python itself about Syntax Error:

npm install serialport

@serialport/[email protected] install C:\Users\Tomas\Source\Repos.2019\t-work-tec\Toors\Toors\node_modules@serialport\bindings
prebuild-install --tag-prefix @serialport/bindings@ || node-gyp rebuild

prebuild-install WARN install No prebuilt binaries found (target=10.13.0 runtime=node arch=x64 libc= platform=win32)

C:\Users\Tomas\Source\Repos.2019\t-work-tec\Toors\Toors\node_modules@serialport\bindings>if not defined npm_config_node_gyp (node "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\npm-lifecycle\node-gyp-bin\....\node_modules\node-gyp\bin\node-gyp.js" rebuild ) else (node "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" rebuild )
gyp ERR! configure error
gyp ERR! stack Error: Command failed: C:\Program Files\Python310\python.EXE -c import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack File "", line 1
gyp ERR! stack import sys; print "%s.%s.%s" % sys.version_info[:3];
gyp ERR! stack ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^
gyp ERR! stack SyntaxError: Missing parentheses in call to 'print'. Did you mean print(...)?
gyp ERR! stack
gyp ERR! stack at ChildProcess.exithandler (child_process.js:289:12)
gyp ERR! stack at ChildProcess.emit (events.js:182:13)
gyp ERR! stack at maybeClose (internal/child_process.js:962:16)
gyp ERR! stack at Socket.stream.socket.on (internal/child_process.js:381:11)
gyp ERR! stack at Socket.emit (events.js:182:13)
gyp ERR! stack at Pipe._handle.close (net.js:606:12)
gyp ERR! System Windows_NT 10.0.19044
gyp ERR! command "C:\Program Files (x86)\nodejs\node.exe" "C:\Program Files (x86)\nodejs\node_modules\npm\node_modules\node-gyp\bin\node-gyp.js" "rebuild"
gyp ERR! cwd C:\Users\Tomas\Source\Repos.2019\t-work-tec\Toors\Toors\node_modules@serialport\bindings
gyp ERR! node -v v10.13.0
gyp ERR! node-gyp -v v3.8.0
gyp ERR! not ok
npm WARN [email protected] requires a peer of bufferutil@^4.0.1 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] requires a peer of utf-8-validate@^5.0.2 but none is installed. You must install peer dependencies yourself.
npm WARN [email protected] No repository field.
npm WARN [email protected] No license field.

It seems like a bug somewhere in the installing scripts (I'm not familiar with Python). Does somebody know what could cause this or some workaround?

Thank you

Tomas

[reconbot]

Can you try with the latest beta?

npm install serialport@beta

The docs can be found at
https://serialport.io/docs/next/

-Francis

[tectech]

Hi

Thank you for the swift response. The beta installs ok. However, I have troubles with backward compatibility.
For instance, this sequence doesn't work with the beta (taken from functional code with the v. 9.0.2):
const SerialPort = require('serialport')
SerialPort.list().then(ports => {
console.log(ports);
});

Also creating the serial port instance doesn't work in this beta:
port = new SerialPort("COM6", { baudRate: 9600 }); // const SerialPort = require('serialport') called before that
returns error: SerialPort is not a constructor

As it seems from debugging that the class itself is in SerialPort.SerialPort, I tried to use this instead. SerialPort.SerialPort.list() works fine. However, the backward compatibility again:
port = new SerialPort.SerialPort("COM6", { baudRate: 9600 });
throws an exception:
C:\Users\Tomas\Source\Repos.2019\t-work-tec\Toors\Toors\node_modules@serialport\stream\dist\index.js:57
throw new TypeError("path" is not defined: ${settings.path});
TypeError: "path" is not defined: undefined
at new SerialPortStream (C:\Users\Tomas\Source\Repos.2019\t-work-tec\Toors\Toors\node_modules@serialport\stream\dist\index.js:57:19)
at new SerialPort (C:\Users\Tomas\Source\Repos.2019\t-work-tec\Toors\Toors\node_modules\serialport\dist\serialport.js:13:9)

I studied the source code of the module and found that the constructor call has different parameters than in the version 9.0.2.
The call should be according to the source code (and as such works):
port = new SerialPort.SerialPort({ path: "COM6", baudRate: 9600 });

So the documentation doesn't reflect the new code. That causes the exception mentioned above. Maybe there should be some parameter checking when this is changed this way in relation with the previous version.

I understand that the documentation is maybe inaccurate for beta. I'm just letting you know about my findings. I can cope with the rest.

Is there any option to install the version 9.0.2 or something close to that? I tried "npm install [email protected]" and this started to install (with failure) the current version anyway.

Thank you for your help.

Tomas

[reconbot]

I'm still working on the docs, but did release an upgrade guide. https://serialport.io/docs/next/guide-upgrade#upgrading-from-9x-to-10x

[tectech]

Thank you for letting me know. Such guide is really beneficial. Is there any way how to install some of older versions? It seems that for instance "npm install serialport@version" doesn't work. Thank you.

[reconbot]

I mean that should work. I don't see why it wouldn't. It's possible you have to build binaries if it was a version that either had an issue building when it was released. But the version you install should be the version you get.