View Issue Details

IDProjectCategoryView StatusLast Update
0037244LazarusIDEpublic2021-02-21 09:14
ReporterWill B Assigned ToJuha Manninen  
Status resolvedResolutionfixed 
PlatformApple Mac miniOSmacOS 10.15.5 
Product Version2.0.8 
Summary0037244: Clicking 'Help' from Lazarus Help menu causes error and empty help viewer
DescriptionWhen clicking the Help menu item from the Lazarus Help menu, an error occurs. A help viewer appears, empty, then an error dialog says:

Invalid file handle.

Press OK to ignore and risk data corruption.
Press Abort to kill the program."
Steps To Reproduce* Have any project open in the IDE
* Click the 'Help' menu
* Choose the 'Help' menu item from the menu
* Empty help viewer and error dialog appear
TagsNo tags attached.
Fixed in Revisionr64306
Attached Files


related to 0038276 resolvedJuha Manninen Patches Lazarus hanging when lHelp starts from Menu and by F1 pressing 


Will B

2020-06-24 07:55


lazarus-help-issue.png (141,144 bytes)   
lazarus-help-issue.png (141,144 bytes)   

Dmitry Boyarintsev

2020-07-02 06:10

developer   ~0123712

that seems to be related to SimpleIPC

The error occurs on TSimpleIPCServer.PeekMessage() call

Andrey Sobol

2021-02-21 08:59

reporter   ~0129044

That fixed by the

Juha Manninen

2021-02-21 09:14

developer   ~0129045

Ok, resolving.

Issue History

Date Modified Username Field Change
2020-06-24 07:55 Will B New Issue
2020-06-24 07:55 Will B File Added: lazarus-help-issue.png
2020-07-02 06:10 Dmitry Boyarintsev Note Added: 0123712
2021-02-21 08:59 Andrey Sobol Note Added: 0129044
2021-02-21 09:13 Juha Manninen Relationship added related to 0038276
2021-02-21 09:14 Juha Manninen Assigned To => Juha Manninen
2021-02-21 09:14 Juha Manninen Status new => resolved
2021-02-21 09:14 Juha Manninen Resolution open => fixed
2021-02-21 09:14 Juha Manninen Fixed in Revision => r64306
2021-02-21 09:14 Juha Manninen LazTarget => -
2021-02-21 09:14 Juha Manninen Widgetset Cocoa => Cocoa
2021-02-21 09:14 Juha Manninen Note Added: 0129045