DX-5187: Fatal error: Uncaught Error: Call to undefined method Composer\XdebugHandler\XdebugHandler::isXdebugActive()

[fiasco]

This bug was picked up in Code Studio which doesn't appear to have Xdebug present. The Inspector for Robo doesn't correctly check if the composer XdebugHandler class is present.

Describe the bug

00:21
[Code Studio AutoDevOps] Creating artifact and pushing to Cloud 
00:01
Fatal error: Uncaught Error: Call to undefined method Composer\XdebugHandler\XdebugHandler::isXdebugActive() in /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/acquia/blt/src/Robo/Inspector/Inspector.php:603
Stack trace:
#0 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/acquia/blt/src/Robo/Inspector/Inspector.php([58](https://code.acquia.com/josh.waihi/Acquia-Drutiny-Repository/-/jobs/199848#L58)0): Acquia\Blt\Robo\Inspector\Inspector->warnIfXdebugActive()
#1 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/acquia/blt/src/Robo/Hooks/CommandEventHook.php(43): Acquia\Blt\Robo\Inspector\Inspector->issueEnvironmentWarnings()
#2 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/consolidation/annotated-command/src/Hooks/Dispatchers/CommandEventHookDispatcher.php(40): Acquia\Blt\Robo\Hooks\CommandEventHook->issueWarnings()
#3 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/consolidation/annotated-command/src/Hooks/HookManager.php(424): Consolidation\AnnotatedCommand\Hooks\Dispatchers\CommandEventHookDispatcher->callCommandEventHooks()
#4 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/symfony/event-dispatcher/EventDispatcher.php(2[64](https://code.acquia.com/josh.waihi/Acquia-Drutiny-Repository/-/jobs/199848#L64)): Consolidation\AnnotatedCommand\Hooks\HookManager->callCommandEventHooks()
#5 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/symfony/event-dispatcher/EventDispatcher.php(239): Symfony\Component\EventDispatcher\EventDispatcher->doDispatch()
#6 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/symfony/event-dispatcher/EventDispatcher.php(73): Symfony\Component\EventDispatcher\EventDispatcher->callListeners()
#7 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/symfony/console/Application.php(1036): Symfony\Component\EventDispatcher\EventDispatcher->dispatch()
#8 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/acquia/blt/src/Robo/Application.php(31): Symfony\Component\Console\Application->doRunCommand()
#9 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/symfony/console/Application.php(275): Acquia\Blt\Robo\Application->doRunCommand()
#10 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/symfony/console/Application.php(149): Symfony\Component\Console\Application->doRun()
#11 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/consolidation/robo/src/Runner.php(282): Symfony\Component\Console\Application->run()
#12 /builds/josh.waihi/Acquia-Drutiny-Repository/vendor/acquia/blt/src/Robo/Blt.php(264): Robo\Runner->run()

To Reproduce
Run a BLT (13.5.3) build through Code Studio to deploy to Acquia Cloud. CI/CD fails at deploy step.

Expected behavior
Deploy successfully occurs.

Detailed error output
See above.

BLT doctor output
Cannot acquire since it is inside the CI/CD env.

System information

• Operating system type: Acquia Code Studio
• Operating system version: N/A
• BLT version: 13.5.3

[fiasco]

This function is present in the latest version of composer/xdebughandler which suggests Code Studio isn't up to date.

[mikemadison13]

@fiasco are you running the stock code studio build, or did you end up customizing yours? i haven't seen this failure.

[mikemadison13]

this was introduced in #4601