Unity - argument null exception

Question

Hi, I have a problem with simple login (from here https://github.com/bdodroid/SimpleScripts-LoginSystem) Everything works fine but when i want to log in it says:

ArgumentNullException: Argument cannot be null. Parameter name: s System.Int32.Parse (System.String s) (at /Users/builduser/buildslave/mono/build/mcs/class/corlib/System/Int32.cs:629) Login+c__Iterator13.MoveNext () (at Assets/xxx/Demo/Login.cs:118)

Row 118 in my Login.cs is:

    userID = int.Parse(parsedData[1]["ID"]);

Please help me, i have the same code as here so you can check https://github.com/bdodroid/SimpleScripts-LoginSystem

Thank You!

Please show us YOUR code. You are pointed to the offending line by the error message. — pStan, Apr 11 '17 at 17:12
Look at Assets/xxx/Demo/Login.cs:119 en debug your code. Add the results to your question. — Jeroen Heier, Apr 11 '17 at 17:29
The line you think to have the error in is line 118 in your script. — itay_421, Apr 11 '17 at 18:49
Yes, i have one empty row somwhere so its 119 in my code.In github its 118.I corrected it in my question.Thanks — Michal Stiglic, Apr 11 '17 at 19:03
Oh, then it seems that parsedData[][] doesn't contains an "ID" index, check the phpdata sent from the server. — itay_421, Apr 11 '17 at 19:09

score 2 · Answer 1 · answered Apr 11 '17 at 17:04

2

Row 119 in Login.cs says:

responseText.GetComponent().text = "CONNECTED";

and the error you got said null exception. This means that the responseText didn't have a Text Component or the responseText is never assigned a GameObject in the editor. responseText is declared as such:

public GameObject responseText;

which means it will be serialized in the Unity editor and you have to assign it yourself. Simply drag your ResponseText Object to the field in the editor.

answered Apr 11 '17 at 17:04

Fredrik Schön

4,888
1
21
32

Sorry its not row 119 but 118 – Michal Stiglic Apr 11 '17 at 19:06
parsedData[1]["ID"] is null. Try with [0], there's a comment saying there's a bug. Maybe the bug is fixed and it's [0] now. try it! Shouldn't be the case since "Email" isn't null. Make sure it has an ID. Perhaps print out the JSON to see how it looks. – Fredrik Schön Apr 11 '17 at 19:08
Indeed. The issue is that there is no "ID" field. Do a `Debug.Log(parsedData)` before the `parsedData[1]["Email"]` – Fredrik Schön Apr 11 '17 at 19:16
[ [ ], {"email":"xxx@gmail.com", "password":"81dc9bdb52d04dc20036dbd8313ed055", "secretQuestion":"si", "answer":"som"} ] UnityEngine.Debug:Log(Object) - this is what i get from debug.log – Michal Stiglic Apr 11 '17 at 19:29
There is no ID. Just remove the row if you're not using it – Fredrik Schön Apr 11 '17 at 19:33
I removed that line and it works THANKS! but in future i want to use ID so i must add it later. – Michal Stiglic Apr 11 '17 at 19:36
Then you have to add ID to the json first :) – Fredrik Schön Apr 11 '17 at 19:36

Unity - argument null exception

1 Answers1