# Add Event in Unity Editor not work!
**URL:** https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191
**Category:** Unity
**Tags:** unity
**Created:** [October 17, 2024, 9:29am UTC](https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191 "2024-10-17T09:29:04Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@pantherastudio](https://qa.fmod.com/u/pantherastudio)
#### Post date: [October 17, 2024, 9:29am UTC](https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191/1 "2024-10-17T09:29:04Z")
Hello, i can’t create new Event FMOD from Unity because i have many banks, so it meet error when BuildTree function in CreateEventPopup.cs
```private
{
var rootGuid = EditorUtils.GetScriptOutput("studio.project.workspace.masterEventFolder.id");
rootFolder = new FolderEntry();
rootFolder.guid = rootGuid;
BuildTreeItem(rootFolder);
wantsMouseMove = true;
banks = new List();
const string buildBankTreeFunc =
@"function() {
var output = """";
const items = [studio.project.workspace.masterBankFolder];
while (items.length > 0) {
var currentItem = items.shift();
if (currentItem.isOfType(""BankFolder"")) {
currentItem.items.reverse().forEach(function(val) {
items.unshift(val);
});
} else {
output += "","" + currentItem.id + currentItem.getPath().replace(""bank:/"", """");
}
}
return output;
}";
string bankList = EditorUtils.GetScriptOutput(string.Format("({0})()", buildBankTreeFunc));
string[] bankListSplit = bankList.Split(new char[] { ',' }, StringSplitOptions.RemoveEmptyEntries);
foreach (var bank in bankListSplit)
{
var entry = new BankEntry();
entry.guid = bank.Substring(0, 38);
entry.name = bank.Substring(38);
banks.Add(entry);
}
}`
```
when i increaseto bigger 2048 bytes in this function at EditorUtils, it works…
```auto
public static string GetScriptOutput(string command)
{
byte[] commandBytes = Encoding.UTF8.GetBytes(command);
try
{
ScriptStream.Write(commandBytes, 0, commandBytes.Length);
byte[] commandReturnBytes = new byte[2048];
int read = ScriptStream.Read(commandReturnBytes, 0, commandReturnBytes.Length);
string result = Encoding.UTF8.GetString(commandReturnBytes, 0, read - 1);
if (result.StartsWith("out():"))
{
return result.Substring(6).Trim();
}
return null;
}
catch (Exception)
{
networkStream.Close();
networkStream = null;
return null;
}
}
```
What should i do? many thanks!!
---
### Author:  [@pantherastudio](https://qa.fmod.com/u/pantherastudio)
#### Post date: [October 24, 2024, 3:11am UTC](https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191/2 "2024-10-24T03:11:57Z")
@Connor_FMOD can you help me please ☹
---
### Author:  [@pantherastudio](https://qa.fmod.com/u/pantherastudio)
#### Post date: [October 24, 2024, 3:15am UTC](https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191/3 "2024-10-24T03:15:46Z")
i meet error when add event in unity, but if i change function like this in EditorUtils.cs, it fixed
---
### Author:  [@cameron-fmod](https://qa.fmod.com/u/cameron-fmod)
#### Post date: [October 25, 2024, 12:49am UTC](https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191/4 "2024-10-25T00:49:16Z")
Thanks for reporting this, it does look like it’s possible to get an `ArgumentOutOfRangeException` as the Bank tree is built, if the entire list of bank strings is greater than the byte array in `GetScriptOutput`.
I have raised a task to investigate a solution for it but for now this is something that will need to be handled like you have shown.
---
### Author:  [@pantherastudio](https://qa.fmod.com/u/pantherastudio)
#### Post date: [October 28, 2024, 5:00am UTC](https://qa.fmod.com/t/add-event-in-unity-editor-not-work/22191/5 "2024-10-28T05:00:15Z")
okay, thank you for reply