Crash Assistant guide for All the Mods 10: To the Sky 2.0.1 to 2.0.2

Same as in the All the Mods 10 8.1 guide

Crash Assistant is a crash-helper mod. When Minecraft crashes, it pops up a window that immediately shows the affected game and launcher logs, crash reports and hs_err files. From there you can upload everything with one click and copy a link to paste into Discord or GitHub. The pack ships version 1.11.12.^[1][2]

It is client-only, so on a server it does nothing.^[1]

Who it is for

It is for anyone who crashes and wants to know why, and for people who help with support. You get a formatted, ready-to-paste report, and anyone helping you gets current logs without having to ask for more files. The mod's author says more than 75% of issues are common and easily solvable, and the analysis aims to cut that support load.^[1]

What it does for you

• Analyzes logs for many known crash causes. When it finds one, it shows a dialog with a description and a detailed fix. Examples include out-of-memory errors, duplicated mods, Mixin conflicts, and GPU driver problems.^[1]
• Warns you if Minecraft is running on an integrated GPU when a dedicated one is available, and offers a one-click Auto-Fix button on Windows.^[1]
• Warns you if your CPU is one of the Intel 13th/14th generation models known to have a critical stability bug.^[1]
• Includes analysis tools in the GUI menu, such as a Package/Class Finder that shows which mod contains a given Java class or package.^[1]
• Saves the modlist, and for modpack players it lists the mods you added, removed or updated compared with the official list. You can also save it manually with the /crash_assistant modlist save command.^[1]

It runs as a separate process that waits for the Minecraft JVM to stop. It also loads very early, so it can catch crashes during startup.^[1]

Where it fits in the pack

Crash Assistant is a utility rather than a gameplay mod, so it adds no progression of its own. You don't need to unlock or craft anything. It is there when something goes wrong.^[1]

Unverified The sources I was given show no quests or ATM Star path involvement for this mod, and no in-jar guidebook was found for it.

Same as in the All the Mods 10: To the Sky 2.0.4 guide

Crash Assistant is not something you craft or unlock. It sits in the background, and when Minecraft crashes it opens a window that shows the affected game and launcher logs, crash reports or hs_err files. From there you can upload them in one click and copy the link to share.^[1]

It is client-only, so on a server it does nothing.^[1]

Unverified The sources here show no quests and no recipes for this mod, so there is no first item to make and no quest chapter to follow. A list of the mods in the pack's modlist lives in config/crash_assistant/modlist.json, which the sources here do not show.

What to know before your first crash

The window analyzes logs for many known crash reasons. If it spots a known issue, it shows a dialog with a description of the problem and a solution. It can also warn you if Minecraft is running on an integrated GPU when a dedicated one is available. You can drag and drop log files straight out of the window, or drag every log at once by dragging the "Available log files:" label.^[1]

In this pack, log analysis is switched on through analysis.enabled, and the analysis tools through analysis_tools.enabled. The first time a crash reason is shown, the OK button is delayed by the number of seconds in analysis.first_show_delay, which is 10 here, so you have time to read the recommendation.^[3]

The window also appears if the game crashes while loading mods and the FML error screen is displayed, because general.show_on_fml_error_screen is on in this pack.^[3]

Sharing your logs

Logs are always uploaded to mclo.gs. This pack sets general.wrap_link to kostromdan.dev, which means the link you copy afterwards is a short wrapped link rather than the original mclo.gs one. The help button opens whatever is set in general.help_link, and the window's wording follows general.formulation_type, which is DISCORD in this pack.^[3]

Uploading also sends metadata about the uploaded logs (not their contents) to api.kostromdan.dev, since general.send_uploaded_logs_data_to_kostromdan_dev is true here. Turn it off in that config file if you would rather not.^[3]

The mod also writes its own copy of the stderr stream to logs/stderr_stream.log, because general.generate_own_launcher_log is enabled. Many launchers do not save that stream, and it can help with debugging.^[3]

Crash Assistant is not a machine or automation mod, so there is no power, fluid or item handling to learn here. It is a crash helper that runs on the client. On a server it does nothing. This section covers how it works and what this pack has set.^[1]

What happens when the game crashes

After Minecraft crashes, the mod shows a GUI that immediately lists all affected game and launcher logs, crash reports and hs_err files. From there you can upload them in one click, copy the link and do other things that make reporting easier. The GUI supports drag and drop, so you can move files out of it, or drag every log at once from the "Available log files:" label.^[1]

The GUI also appears when the game crashes while loading mods and the FML error screen is displayed, because general.show_on_fml_error_screen is true in this pack. If an old crash window is still running when you start Minecraft again, general.kill_old_app (true here) closes it so you are not confused by a stale window.^[4]

Log analysis

The mod checks your logs against many known crash reasons. When it finds one, it shows a dialog with a description of the problem and a detailed solution. Analysis is switched on in this pack through analysis.enabled.^[1][4]

The checks are grouped by the kind of log they read:^[1]

• hs_err (JVM crashes): graphics driver problems such as nvoglv64.dll, atio6axx.dll and glfw.dll, plus InsufficientMemory, JavaTooHigh and jemalloc.dll.^[1]
• Log and crash report: OutOfMemoryError, DuplicatedMods, MixinApply, MissingUnsupportedDependencies, UnsupportedClassVersion, DiskSpaceEnded and UsedByAnotherProcess, among many others.^[1]
• Windows Event Log: WasClosedByWindows, for when the game froze and the OS terminated it.^[1]
• Codex integration: after an upload, every supported log is also analysed by the Codex logs analyzer of mclo.gs. For an erroring block or entity, the mod shows its own detailed how-to-fix message.^[1]

You can turn off individual checks by their class name, for example "Create6Addons", in analysis.blacklisted_reasons. This pack leaves that list empty, so every check is active.^[4]

Uploading and the Request Help button

Logs are always uploaded to mclo.gs. With general.upload_to you can wrap the link for better formatting, and this pack keeps it on mclo.gs. general.enable_privacy_policy_acceptance is true, so before your first upload you must accept the privacy policy.^[4]

The Request Help button opens the link in general.help_link, which in this pack is a Discord invite.^[4]

The wording used for support in the mod's messages comes from two text options, which the pack sets like this:^[4]

• text.support_name is "ATM10 To the Sky Support Channel".^[4]
• text.support_place is "#10sky-techsupport channel".^[4]

The "Upload all" message

The Upload All button builds a ready-made message you can paste when asking for help. These options shape it in this pack:^[4]

• generated_message.put_analysis_result_to_message is true, so the message lists the names of the crash reasons instead of just a count.^[4]
• generated_message.put_problematic_frame_to_message is true, so the problematic frame from an hs_err file is included.^[4]
• generated_message.one_line_logs is true, which joins the logs with a separator on one line to keep the message short vertically.^[4]
• generated_message.h3_prefix is true, adding a ### prefix before each filename so the links are bigger and easier to hit on mobile.^[4]
• generated_message.color_message is true and uses ANSI colour. The config notes you may need to turn it off for places that do not support ANSI code blocks, like GitHub.^[4]
• generated_message.text_under_crashed and generated_message.warning_after_upload_all_button_press are both empty in this pack, so no extra text or warning is added.^[4]

The message language is generated_message.generated_msg_lang, set to en_us here. The modpack name shown in the message comes from text.modpack_name, which this pack fills from its Better Compatibility Checker name and version values.^[4]

GUI look

The two main buttons are customisable. In this pack the Upload All button uses font size 16 and a dark green colour (0_178_0), and the Request Help button uses font size 16 and dark blue (0_0_178). The config advises against going above 16 for the Upload All button, because the GUI grows when the text no longer fits.^[4]

The GUI also shows a notice that a screenshot of the GUI tells the pack creators nothing, and its border is animated to draw attention. Both are enabled here.^[4]

Intel warning and the crash command

The mod has a feature for Intel processors that can be corrupted. intel_corrupted.enabled is true, as are the log-list notification and the funny gif in the warning message (intel_corrupted.show_gif).^[4]

There is also a command that crashes the game on purpose, but crash_command.enabled is false in this pack. If it were on, you would have to run it again within crash_command.seconds seconds to confirm. That value is 10 here, and a value of 0 or less disables the confirmation.^[4]

Modlist feature

The modlist feature is enabled in this pack. It is a record of the pack's mods that is meant for the pack creators. It is not something you use while playing. With modpack_modlist.add_modlist_txt_as_log on, a generated modlist.txt with mod names, mod ids, mixin configs and jar-in-jar mod info is added to the logs. Modloader jar name and resource packs are also added to the modlist.^[4]

modpack_modlist.auto_update is false here, so modlist.json is not overwritten on launch. Only players listed in modpack_modlist.modpack_creators can overwrite it, and the config says to save it manually with the '/crash_assistant modlist save' command.^[4]

Unverified The contents of the saved modlist are in config/crash_assistant/modlist.json, which is too large to be included in the sources here, so what it lists is not shown.

Crash Assistant is a client-only mod that pops up a GUI after Minecraft crashes, shows the affected logs, and lets you upload them in one click. Almost everything is configured in one file, and the options below are the ones you're most likely to touch or wonder about.^[1]

Reporting and uploading

• general.help_link is what the Request Help button opens. The pack points it at its community Discord invite. The mod says that if this is left as CHANGE_ME, it opens the modloader's Discord instead.^[4]
• general.upload_to is set to mclo.gs. Logs always upload there, and the only other supported value, gnomebot.dev, just wraps the link for better formatting.^[4]
• general.enable_privacy_policy_acceptance is true, so you have to accept the privacy policy before your first log upload.^[4]
• The support text shown in the GUI comes from text.support_name and text.support_place. The pack sets both to point at its own tech-support channel.^[4]
• text.modpack_name uses Better Compatibility Checker placeholders for the pack name and version, so the crash message shows the version you're actually running.^[4]

Crash analysis

analysis.enabled is true, and analysis.blacklisted_reasons is empty. That means no known crash reason is switched off.^[4]

generated_message.put_analysis_result_to_message and generated_message.put_problematic_frame_to_message are both true. The Upload all message lists the crash reasons by name instead of just a count, and includes the problematic frame from an hs_err file.^[4]

general.show_on_fml_error_screen is true, so the GUI also appears when the game fails during mod loading and the FML error screen shows.^[4]

Crash command

crash_command.enabled is false in this pack, so the manual crash command is off. If you turn it on, crash_command.seconds is 10: you have to run the command again within 10 seconds to confirm. Setting it to 0 or below removes the confirmation.^[4]

Button look

The Upload all button uses font size 16 and a dark green color, and the Request Help button uses size 16 and dark blue. The config comments describe these as the defaults, so the pack keeps them. The comment also says not to go above 16, because larger text makes the window bigger.^[4]

Modlist tracking

modpack_modlist.enabled is true, so the mod keeps a modlist.json that records each mod's jar name, mod id, version and hashes. modpack_modlist.auto_update is false, so the file isn't rewritten on launch. The config comment says to save it manually with the modlist save command in that case.^[4][5]

Only the nicknames in modpack_modlist.modpack_creators can overwrite that file. The pack lists oly2o7, billbertking1 and Satherov. The mod says this is a technical setting and isn't displayed anywhere, so as a player you can ignore it.^[4]

This pack ships Crash Assistant 1.11.3. I don't have any pack changelog entries for this mod, so everything below comes from the mod's own changelogs. They are cut off in places, so treat this as a set of highlights and not the full history.^[6]

1.11.3 (the version in this pack)

The pack uses the NeoForge build of the jar. Some of the 1.11.3 notes are about other loaders, but here is what that release changed.^[6][7]

• Initial release for legacy-fabric 1.7.10, 1.8.9, 1.9.4, 1.10.2, 1.11.2, 1.12.2 and 1.13.2.^[7]
• Crash Assistant no longer requires fabric-api on Fabric 1.13.2 and higher.^[7]
• Fixed commands not being registered on Fabric 1.14.4 and 1.15.2.^[7]
• Fixed some rare issues with log uploading.^[7]
• A major refactor of the build process, so every Minecraft version now shares the same code for the app and common_config subprojects.^[7]

Earlier highlights

• 1.10.27: GZIP compression for McLogs uploads, which cuts payload size and upload times by up to 100x. 1.10.28 then fixed links sometimes not opening on Linux.^[8]
• 1.10.24: the Mod List Difference feature was redesigned into an interactive tool. It shows Added, Updated and Removed sections, supports CurseForge and Modrinth, and offers Revert Update, Restore and Manage actions.^[8]
• 1.10.23: a Simple Mode that hides logs behind a button (disabled by default), plus an option to skip the split dialog for large logs and copy both links automatically.^[9]
• 1.10.22: the Crash Assistant log now shows the full analysis message formatted with Markdown, where before it was cut to the first line. Versions 1.7.10 to 1.15.2 were also marked as release instead of beta.^[9]
• 1.10.20 and 1.10.21: Crash Assistant started generating stderr_stream.log with the Minecraft process's stderr output, and from 1.10.21 it is shown only if it includes stack traces. 1.10.21 also added several new log analyses, such as JnaPermissionIssue and AzureLibAddons.^[9]
• 1.10.11: added a config option to customize the log order and another to include the modpack logo in the GUI.^[10]
• 1.10.8 to 1.10.10: an optional Auto-Fix button inside log analysis warnings, first for Create6Addons and EpicFightAddons, then a one-click fix for GroovyModLoaderIPv6.^[10]
• 1.10.1: added config options for enabling or disabling analysis tools, and a FilesRemover dialog to delete, disable, enable or show detected mods in the file explorer.^[11]
• 1.10.0 (major update): on Fabric, the launch of the Crash Assistant process moved to a LanguageAdapter so it runs from the first possible point. It also added an Auto-Fix option for the Integrated GPU warning and swapped the DLL-based GPU detection for C# based detection.^[11]
• 1.9.15: Crash Assistant became available for all modloaders on every version from 1.16.5 to 1.21.8, with no gaps.^[12]
• 1.9.13 was the initial release for 1.7.10, and 1.9.10 was the initial release for 1.12.2.^[12]