Error launching Shell in 4.0.3

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1

I’m getting an error trying to launch the Shell in 4.0.3. I checked the PUN error log and I am showing the below error.

App 3709 output: innerError Error: Cannot find module '../build/Debug/pty.node'
App 3709 output: Require stack:
App 3709 output: - /var/www/ood/apps/sys/shell/node_modules/node-pty/lib/unixTerminal.js
App 3709 output: - /var/www/ood/apps/sys/shell/node_modules/node-pty/lib/index.js
App 3709 output: - /var/www/ood/apps/sys/shell/app.js
App 3709 output: - /opt/ood/ondemand/root/usr/share/passenger/helper-scripts/node-loader.js
App 3709 output:     at Module._resolveFilename (node:internal/modules/cjs/loader:1212:15)
App 3709 output:     at Module._load (node:internal/modules/cjs/loader:1043:27)
App 3709 output:     at Module.require (node:internal/modules/cjs/loader:1298:19)
App 3709 output:     at Module.require (/opt/ood/ondemand/root/usr/share/passenger/helper-scripts/node-loader.js:80:25)
App 3709 output:     at require (node:internal/modules/helpers:182:18)
App 3709 output:     at Object.<anonymous> (/var/www/ood/apps/sys/shell/node_modules/node-pty/lib/unixTerminal.js:34:15)
App 3709 output:     at Module._compile (node:internal/modules/cjs/loader:1529:14)
App 3709 output:     at Module._extensions..js (node:internal/modules/cjs/loader:1613:10)
App 3709 output:     at Module.load (node:internal/modules/cjs/loader:1275:32)
App 3709 output:     at Module._load (node:internal/modules/cjs/loader:1096:12) {
App 3709 output:   code: 'MODULE_NOT_FOUND',
App 3709 output:   requireStack: [
App 3709 output:     '/var/www/ood/apps/sys/shell/node_modules/node-pty/lib/unixTerminal.js',
App 3709 output:     '/var/www/ood/apps/sys/shell/node_modules/node-pty/lib/index.js',
App 3709 output:     '/var/www/ood/apps/sys/shell/app.js',
App 3709 output:     '/opt/ood/ondemand/root/usr/share/passenger/helper-scripts/node-loader.js'
App 3709 output:   ]
App 3709 output: }
App 3709 output: /var/www/ood/apps/sys/shell/node_modules/node-pty/lib/unixTerminal.js:40
App 3709 output:         throw outerError;
App 3709 output:         ^
App 3709 output:
App 3709 output: Error: /var/www/ood/apps/sys/shell/node_modules/node-pty/build/Release/pty.node: undefined symbol: _ZN2v88internal20CanHaveInternalFieldEi
App 3709 output:     at Module._extensions..node (node:internal/modules/cjs/loader:1651:18)
App 3709 output:     at Module.load (node:internal/modules/cjs/loader:1275:32)
App 3709 output:     at Module._load (node:internal/modules/cjs/loader:1096:12)
App 3709 output:     at Module.require (node:internal/modules/cjs/loader:1298:19)
App 3709 output:     at Module.require (/opt/ood/ondemand/root/usr/share/passenger/helper-scripts/node-loader.js:80:25)
App 3709 output:     at require (node:internal/modules/helpers:182:18)
App 3709 output:     at Object.<anonymous> (/var/www/ood/apps/sys/shell/node_modules/node-pty/lib/unixTerminal.js:29:11)
App 3709 output:     at Module._compile (node:internal/modules/cjs/loader:1529:14)
App 3709 output:     at Module._extensions..js (node:internal/modules/cjs/loader:1613:10)
App 3709 output:     at Module.load (node:internal/modules/cjs/loader:1275:32) {
App 3709 output:   code: 'ERR_DLOPEN_FAILED'
App 3709 output: }
App 3709 output:
App 3709 output: Node.js v20.19.1
[ E 2025-05-19 18:51:21.8464 3151/Tq age/Cor/App/Implementation.cpp:221 ]: Could not spawn process for application /var/www/ood/apps/sys/shell: The application process exited prematurely.
  Error ID: 7ef372cb
  Error details saved to: /tmp/passenger-error-8io1SD.html

[ E 2025-05-19 18:51:21.8495 3151/Tb age/Cor/Con/CheckoutSession.cpp:282 ]: [Client 2-5] Cannot checkout session because a spawning error occurred. The identifier of the error is 7ef372cb. Please see earlier logs for details about the error.
2

Seems like an issue with the libraries we’re linking too. What does this ldd command show on that same pty.node binary?

[johrstrom ~()] 🐷  ldd /var/www/ood/apps/sys/shell/node_modules/node-pty/build/Release/pty.node
        linux-vdso.so.1 (0x00007ffe1cbd5000)
        libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007efca2c00000)
        libm.so.6 => /lib64/libm.so.6 (0x00007efca2b25000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007efca2e73000)
        libc.so.6 => /lib64/libc.so.6 (0x00007efca2800000)
        /lib64/ld-linux-x86-64.so.2 (0x00007efca2ea1000)

And htere’s other various information from my RHEL9 system.

[johrstrom ~()] 🐨  which node
/usr/bin/node
[johrstrom ~()] 🐬  node --version
v20.18.2
[johrstrom ~()] 🐧  ldd --version
ldd (GNU libc) 2.34
3

Here’s my output. I’m running AL2023

[root@ip-10-0-3-148 Admin]# ldd /var/www/ood/apps/sys/shell/node_modules/node-pty/build/Release/pty.node
        linux-vdso.so.1 (0x00007fffc3dd7000)
        libstdc++.so.6 => /lib64/libstdc++.so.6 (0x00007fd7d8600000)
        libgcc_s.so.1 => /lib64/libgcc_s.so.1 (0x00007fd7d8a35000)
        libc.so.6 => /lib64/libc.so.6 (0x00007fd7d8200000)
        libm.so.6 => /lib64/libm.so.6 (0x00007fd7d895a000)
        /lib64/ld-linux-x86-64.so.2 (0x00007fd7d8a75000)
[root@ip-10-0-3-148 Admin]# which node
/usr/bin/node
[root@ip-10-0-3-148 Admin]# node --version
v20.19.1
[root@ip-10-0-3-148 Admin]# ldd --version
ldd (GNU libc) 2.34
Copyright (C) 2021 Free Software Foundation, Inc.
This is free software; see the source for copying conditions.  There is NO
warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
Written by Roland McGrath and Ulrich Drepper.
4

Maybe it’s a nodejs version error? Looking at the 4.0.3 build logs for AL2023, I see we installed these packages and built against them.

 nodejs                         x86_64  1:18.20.6-1.amzn2023.0.1          amazonlinux    13 M
 nodejs-libs                    x86_64  1:18.20.6-1.amzn2023.0.1          amazonlinux    14 M
``
5

I’ll try another fresh install and see if I run into this. Should I try downgrading nodejs to 20.18.2?

6

Yes I think so, down to 1.18.20 by the looks of it.

7

I believe the error is related to a Node.js module compatibility issue with the shell app in Open OnDemand. The node-pty module needs to be rebuilt for the current Node.js version. Here’s how i fixed it:

# Install development tools needed for rebuilding Node modules
sudo dnf install gcc-c++ make nodejs-devel -y

# Navigate to the shell app directory
cd /var/www/ood/apps/sys/shell

# Rebuild the node-pty module
sudo npm rebuild node-pty

# Restart Apache to apply changes
sudo systemctl restart httpd
8

This solution worked, thank you!