[Info: 2021-06-15 23:10:45.4681967: NetQueue.cpp(157)] NetQueue: Setting up.
[Info: 2021-06-15 23:10:45.4705416: NetQueue.cpp(575)] NetQueue: worker thread started.
[Info: 2021-06-15 23:10:45.4708901: mainWindows.cpp(80)] Running launcher bootstrap (version 1000)
[Error: 2021-06-15 23:10:45.6018538: Settings.cpp(40)] Failed to determine configuration file size: The system cannot find the file specified.
[Info: 2021-06-15 23:10:45.6142503: NetQueue.cpp(157)] NetQueue: Setting up.
[Info: 2021-06-15 23:10:45.6196282: NetQueue.cpp(575)] NetQueue: worker thread started.
[Error: 2021-06-15 23:10:45.6739686: Settings.cpp(40)] Failed to determine configuration file size: The system cannot find the file specified.
[...]
[Info: 2021-06-15 23:10:45.8352620: LauncherConfiguration.cpp(261)] Error opening: ...\Minecraft Launcher\game\.version, Error message: no such file or directory
[...]
[Info: 2021-06-15 23:11:02.0400887: GameVersionManager.cpp(205)] Couldn't read local cache of the Mojang versions manifest: generic:2
[Error: 2021-06-15 23:11:02.0402898: GameVersionManager.cpp(242)] Can't read directory %USERPROFILE%\AppData\Roaming\.minecraft\versions: The system cannot find the path specified.
[...]
[Info: 2021-06-15 23:11:18.3399096: client_handler.cpp(220)] Handling PostTelemetryEvent message
[Error: 2021-06-15 23:11:18.6300029: app.bff87320.bundle.js(2)] OnConsoleMessage: TypeError: Cannot read property 'versionId' of undefined
[Error: 2021-06-15 23:11:21.3558487: app.bff87320.bundle.js(2)] OnConsoleMessage: TypeError: Cannot read property 'versionId' of undefined
[Info: 2021-06-15 23:11:22.6940394: client_handler.cpp(220)] Handling PostTelemetryEvent message
[Error: 2021-06-15 23:11:23.7675184: app.bff87320.bundle.js(2)] OnConsoleMessage: TypeError: Cannot read property 'versionId' of undefined
[Info: 2021-06-15 23:11:23.8324183: client_handler.cpp(220)] Handling PostTelemetryEvent message
[Info: 2021-06-15 23:11:25.3047183: client_handler.cpp(220)] Handling PostTelemetryEvent message
[Error: 2021-06-15 23:11:26.4837235: app.bff87320.bundle.js(2)] OnConsoleMessage: TypeError: Cannot read property 'versionId' of undefined
[Info: 2021-06-15 23:11:26.5477246: client_handler.cpp(220)] Handling PostTelemetryEvent message
[Error: 2021-06-15 23:11:27.6509686: app.bff87320.bundle.js(2)] OnConsoleMessage: TypeError: Cannot read property 'versionId' of undefined
Thank you for your report!
We're tracking this issue in MCL-18214, so this ticket is being resolved and linked as a duplicate.
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