[#SVC-2975] MONO - System.Reflection.TargetParameterCountException

2. Second Life Service - SVC

SVC-2908

MONO - System.Reflection.TargetParameterCountException

Created: 01/Sep/08 03:06 AM Updated: 02/Feb/09 03:59 PM

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Component/s:

None

Affects Version/s:

1.24 Server

Fix Version/s:

1.25 Server

Issue Links:

Duplicate

This issue is original of duplicate:

~~SVC-3349~~ MONO : llRemoteLoadScriptPin run time error when updating a suspended script

Relates

This issue Relates to:

SVC-2908 C# error messages with Mono Compiled scripts

This issue is related to by:

~~SVC-3220~~ Script Crash: System.Reflection.TargetParameterCountException

~~SVC-1276~~ Mono issues

Linden Lab Issue ID:	DEV-21495
Linden Lab Internal Branch:	mono-fixes-server1.25-r99852

Description

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This error is being reported after a previously working script was converted to mono.

The error dosn't give any usefull information. The script operates for a while before crashing out.

I'll provide a copy of the script to any linden who asks. It is too large to post in full here, and i am unable to determine what part is causing the error because the error is not turning up in the wiki search for me.

[21:59] Quantum Core [script:Attack Agent III (rezzed)]: Script run-time error
[21:59] Quantum Core [script:Attack Agent III (rezzed)]: System.Reflection.TargetParameterCountException: Number of parameter does not match expected

count.
at System.Reflection.Binder.ConvertArgs (System.Reflection.Binder binder, System.Object[] args, System.Reflection.ParameterInfo[] pinfo,

System.Globalization.CultureInfo culture) [0x00000]
at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters,

System.Globalization.CultureInfo culture) [0x00000]
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000]
at LindenLab.SecondLife.LslUserScript.OnEvent (ScriptEvent evt) [0x00000]
at LindenLab.SecondLife.Script.Run (ScriptEvent evt) [0x00000]

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Change History

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Gellan Glenelg added a comment - 01/Sep/08 05:29 AM

Duplicate of SVC-2908

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Soft Linden added a comment - 27/Sep/08 01:49 PM

Please don't mark it as a duplicate if an issue contains more specific details than the other issue.

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uchi desmoulins added a comment - 27/Sep/08 03:11 PM

Here's how I managed to reproduce this error.

Steps:
1) Place the two scripts below into the contents of a prim.
2) Touch the prim.
3) Repeat step 2 until 'Script 2' crashes.

The key points to reproducing the error in this example are:
1) Flood 'Script 2' with link_messages so that the event queue is overflowing.
2) Have something occur that triggers the changed event in 'Script 2' at the same time.
3) STOP the flood of link_messages.

Observations:

You'll notice that the 'changed' event doesn't have a chance to fire off when the script crashes.

Otherwise, if the script doesn't crash, you'll see the changed event fire off in the middle of the link_messages once, followed by two more changed events AFTER the link_messages.

More link_messages = higher probability that 'Script 2' will crash.

Script 1 shouldn't crash.

Script 2's checkbox for "Running" is still checked (even after reopening the script). llGetScriptState(...) returns FALSE though.

Script 1
----------

default
{
touch_start(integer num)

{ integer i; llMessageLinked(LINK_THIS, 1, "", ""); llSleep(0.1); for(i = 0; i < 100; ++i) llMessageLinked(LINK_THIS, 0, "", ""); }

}

Script 2
----------
integer i;
integer j;

list event_order;

default
{
changed(integer change)

{ ++j; event_order += [1]; llSetText("Link_message Events: " + (string)i + "\nChanged Events: " + (string)j + "\n \n-- Event Order --\n0 = link_message\n1 = changed\n" + llDumpList2String(event_order, ""), <1,1,1>, 1.0); }

link_message(integer sender_num, integer num, string msg, key id)

{ if(num) llResetScript(); ++i; llSetAlpha(llFrand(1.0), ALL_SIDES); event_order += [0]; llSetText("Link_message Events: " + (string)i + "\nChanged Events: " + (string)j + "\n \n-- Event Order --\n0 = link_message\n1 = changed\n" + llDumpList2String(event_order, ""), <1,1,1>, 1.0); }

}