Error Applet

This is the applet presented when a title displays an error message. See AM_services#Library_Applets.

All errors displayed by this applet get logged and can be viewed under 'Settings' > 'Support' > 'Error History'.

On pre-5.0.0 the specified LanguageCode has to be valid, otherwise a fatal-error is thrown. With [5.0.0+] it will use en-US when the LanguageCode is invalid.

ErrorContext

Offset	Size	Description
0x0	0x1F4	String, should be NUL-terminated.
0x1F4	0xC	?

ErrorCommonHeader

Offset	Size	Description
0x0	0x1	u8 type
0x1	0x1	u8 jumpFlag. When clear, this indicates WithoutJump.
0x2	0x3	?
0x5	0x1	u8 contextFlag. When set with type=0, indicates that an additional storage is pushed for #ResultBacktrace. [4.0.0+]: When set indicates that an additional storage is pushed for #ErrorContext.
0x6	0x1	u8 resultFlag. #ErrorCommonArg: When clear, ErrorCode is used, otherwise the applet generates the error-code from res.
0x7	0x1	u8 contextFlag2. Similar to contextFlag except for #ErrorCommonArg, indicating #ErrorContext is used.

ErrorCommonArg

Offset	Size	Description
0x0	0x8	ErrorCommonHeader
0x8	0x8	#ErrorCode
0x10	0x4	Result res

ShowError: type=0, jumpFlag={varies}, contextFlag2={set when ErrorContext used}.

• If the input Result is 0xC8A2, the applet will display a special dialog regarding the current application requiring a software update, with buttons "Later" and "Restart". The official user-process name for this is ShowUnacceptableApplicationVersionError.
• [3.0.0+] There's also special dialog handling for Result 0xCAA2. The official user-process name for this is ShowUnacceptableAddOnContentVersionError.

ErrorPctlArg

Offset	Size	Description
0x0	0x8	ErrorCommonHeader. type=4.
0x8	0x4	Result res

This struct is 0xC-bytes. Used instead of #ErrorCommonArg where a Result error would have been displayed with type=0, for module=PCTL errors with desc 100-119. For this the applet will display the following dialog (without report logging): "This software is restricted by Parental Controls".

ErrorEulaData

Offset	Size	Description
0x0	0x20000	data

ErrorEulaArg

Offset	Size	Description
0x0	0x8	ErrorCommonHeader. jumpFlag = 1.
0x8	0x4	RegionCode

This struct is 0xC-bytes.

• Eula: ErrorCommonHeader.type = 3. Displays the EULA.
• SystemUpdateEula: ErrorCommonHeader.type = 8. Displays the system-update EULA. Uses an additional IStorage containing #ErrorEulaData, from Applet_Manager_services#CreateTransferMemoryStorage with flag=false.

ErrorRecordArg

Offset	Size	Description
0x0	0x8	ErrorCommonHeader. type=5 and jumpFlag=1.
0x8	0x8	#ErrorCode
0x10	0x8	u64 POSIX timestamp

The applet does not log an error report for this. Used by qlaunch for viewing previously logged errors via the "View the Error" button.

SystemErrorArg

Offset	Size	Description
0x0	0x8	ErrorCommonHeader. type=1.
0x8	0x8	#ErrorCode
0x10	0x8	LanguageCode
0x18	0x800	UTF-8 string dialogMessage
0x818	0x800	UTF-8 string fullscreenMessage, displayed when the user clicks on "Details". When not set this disables displaying Details.

This struct is 0x1018-bytes.

ApplicationErrorArg

Offset	Size	Description
0x0	0x8	ErrorCommonHeader. type=2 and jumpFlag=1.
0x8	0x4	u32 errorNumber. Raw decimal error number which is displayed in the dialog.
0xC	0x8	LanguageCode
0x14	0x800	UTF-8 string dialogMessage
0x814	0x800	UTF-8 string fullscreenMessage, displayed when the user clicks on "Details". When not set this disables displaying Details.

This struct is 0x1014-bytes.

ErrorCode

This is an u64 containing the error-code: the low u32 is the module portion which is normally set to module + 2000, and the high u32 is the error description.

ResultBacktrace

Offset	Size	Description
0x0	0x4	s32 total entries
0x4	0x4*total_entries	Array of Result

Usage

User-processes should push a common arguments struct (version=0) as well as the Arg struct. Once the applet finishes running successfully, it may return an output storage in some cases. An u8 status value is located at +1, where non-zero indicates error.