follow-up on this. I discovered the following errors in the log during the dev build step
[8246 ms] [07:53:50] Installing extension 'coderoad.coderoad' v0.15.1...
[8246 ms] [07:53:50] Getting Manifest... coderoad.coderoad
[8246 ms] [07:53:50] Installing extension: coderoad.coderoad {
isMachineScoped: false,
installPreReleaseVersion: false,
isApplicationScoped: true,
isBuiltin: false,
installGivenVersion: true,
profileLocation: xr {
scheme: 'file',
authority: '',
path: '/home/camper/.vscode-server/extensions/extensions.json',
query: '',
fragment: '',
_formatted: 'file:///home/camper/.vscode-server/extensions/extensions.json',
_fsPath: '/home/camper/.vscode-server/extensions/extensions.json'
},
productVersion: { version: '1.102.2', date: '2025-07-22T12:15:48.520Z' }
}
[10730 ms] [07:53:52] Error while installing the extension coderoad.coderoad Signature verification failed with 'NotSigned' error. file:///home/camper/.vscode-server/extensions/extensions.json
[07:53:52] Error while installing extension coderoad.coderoad: Signature verification failed with 'NotSigned' error.
[07:53:52] Error: Failed Installing Extensions: coderoad.coderoad
at cl.installExtensions (file:///vscode/vscode-server/bin/linux-x64/c306e94f98122556ca081f527b466015e1bc37b0/out/server-main.js:67:35419)
[10733 ms] [07:53:52] Relaying the following extensions to install later: coderoad.coderoad@0.15.1
[11730 ms] rejected promise not handled within 1 second: SignatureVerificationFailed: Signature verification failed with 'NotSigned' error.
stack trace: SignatureVerificationFailed: Signature verification failed with 'NotSigned' error.
at Kc.Bb (file:///vscode/vscode-server/bin/linux-x64/c306e94f98122556ca081f527b466015e1bc37b0/out/server-main.js:55:16693)
at async Kc.Ab (file:///vscode/vscode-server/bin/linux-x64/c306e94f98122556ca081f527b466015e1bc37b0/out/server-main.js:55:15223)
[07:53:53] SignatureVerificationFailed: Signature verification failed with 'NotSigned' error.
at Kc.Bb (file:///vscode/vscode-server/bin/linux-x64/c306e94f98122556ca081f527b466015e1bc37b0/out/server-main.js:55:16693)
at async Kc.Ab (file:///vscode/vscode-server/bin/linux-x64/c306e94f98122556ca081f527b466015e1bc37b0/out/server-main.js:55:15223) {
code: 'SignatureVerificationFailed'
}
Edit: I found a workaround. The version of coderoad that normally installs when you try to install it manually is 0.17.2. So I modified the json file that has the old 0.15 level and replaced it with this new version and reran the steps to rebuild and it worked this time