Lazarus instance is running but not responding.

[guest65109]

My Lazarus show a message box asked me to choose between OK or Abort. I chose OK many time but the it's just hang, if I click anywhere inside the Lazarus's window the message box appear again, I chose Abort then Lazarus crashed. I attempt to launch it again via XFCE Menu Entry but it give a message box as the title.

[MarkMLl]

You've broken something. Cut down your project to be the minimum possible and post it here so we can tell you what's going wrong.

MarkMLl

[Martin_fr]

The IDE has a feature to optionally only run one instance of it. (Open new files in existing instance).

For that it uses a lockfile and IPC.
Even if you disable the feature it will still check....  related https://bugs.freepascal.org/view.php?id=35838

If you have no other IDE running, then maybe an old lockfile exists. (afaik somewhere in your tmp folder)

[wp]

My Lazarus show a message box asked me to choose between OK or Abort. I chose OK many time but the it's just hang, if I click anywhere inside the Lazarus's window the message box appear again, I chose Abort then Lazarus crashed. I attempt to launch it again via XFCE Menu Entry but it give a message box as the title.

Opening a form which contains controls with unknown properties sometimes results in this state. Then all I can do is to check in the Task Manager (I'm on Windows usually) whether Lazarus is still running somewhere. After killing this instance Lazarus starts again normally -- of course the same thing will  happen again as long the root cause - the presence of unknown properties in my example - is not fixed.

[guest65109]

My Lazarus show a message box asked me to choose between OK or Abort. I chose OK many time but the it's just hang, if I click anywhere inside the Lazarus's window the message box appear again, I chose Abort then Lazarus crashed. I attempt to launch it again via XFCE Menu Entry but it give a message box as the title.

Opening a form which contains controls with unknown properties sometimes results in this state. Then all I can do is to check in the Task Manager (I'm on Windows usually) whether Lazarus is still running somewhere. After killing this instance Lazarus starts again normally -- of course the same thing will  happen again as long the root cause - the presence of unknown properties in my example - is not fixed.

After I kill the lazarus process with Task Manager I could run the new instance properly. I just play around with layout management on Lazarus so I didn't save the project, after a restart everything is gone. As I remember, I was playing with the TFlowPanel, trying customize it properties and suddenly lazarus show me this dialog.