Student Error on Statup

2018 11 12
0 个回答
更新时间：2026 4 6
25 次查看（30 天）

2 个投票

I have a student running the 2018B Student version on a Mac. On startup she gets the error:
Error in internal.hotplug.EventSource/stop (line 69)
obj.Channel.close();
Error in internal.hotplug.EventSource/delete (line 53)
stop(obj);
Error in internal.hotplug.EventSource (line 34)
function obj = EventSource()
Eror in internal.deviceplugindetection.Manager (line 173)
obj.USBDectorObject = internal.hotplug.EventSource();
Error in internal.deviceplugindetection.Manager.getInstance (line 246)
devicePlugInManagerInstance =
internal.deviceplugindetection.Manager();
Error in matlabrc (line 86)
pl=internal.deviceplugindection.Manager.getInstance(line 246);

4 个评论
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Steven Lord
Steven Lord 2018-11-12
Is there any red or orange text displayed before the first line of that message? If so show the full text as those previous lines may include information critical in determining the cause of the error.
Jason Ottie
Jason Ottie 2018-11-12
Warning: The following error was caught while executing 'internal.hotplug.EventSource' class destructor: Dot indexing is not supported for variables of this type.
Jason Ottie
Jason Ottie 2018-11-20
Bump. Anyone suggestions? Thanks
Curtis Schroeder
Curtis Schroeder 2026-4-6，15:38
I am seeing a similar error in a fresh install of Matlab R2023b Update 11 on an Oracle Linux 9 machine, but it is not present on two other Oracle Linux 9 machines. All three were installed with the same installer on the same day. All three are launching the same project.
Warning: The following error was caught while executing 'internal.hotplug.EventSource' class destructor:
Dot indexing is not supported for variables of this type.
Error in internal.hotplug.EventSource/stop (line 84)
obj.Channel.close();
Error in internal.hotplug.EventSource/delete (line 67)
stop(obj);
Error in internal.hotplug.EventSource (line 37)
internal.hotplug.EventSource.lock();
Error in internal.deviceplugindetection.Manager (line 173)
obj.USBDetectorObject = internal.hotplug.EventSource();
Error in internal.deviceplugindetection.Manager.getInstance (line 246)
devicePluginManagerInstance = internal.deviceplugindetection.Manager();
> In internal.hotplug.EventSource (line 37)
In internal.deviceplugindetection.Manager (line 173)
In internal.deviceplugindetection.Manager.getInstance (line 246)

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回答（0 个）

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版本

R2018b

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提问:

Jason Ottie
Jason Ottie
2018-11-12

评论：

Curtis Schroeder
Curtis Schroeder
2026-4-6，15:38

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