# M2M Studio error **URL:** \ **Category:** Development tools\ **Created:** [February 9, 2009, 2:03pm UTC](https://forum.sierrawireless.com/t/m2m-studio-error/2909 "2009-02-09T14:03:44Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![oliv6931](https://avatars.discourse-cdn.com/v4/letter/o/6a8cbe/32.png) [@oliv6931](https://forum.sierrawireless.com/u/oliv6931)\ **Post date:** [February 9, 2009, 2:03pm UTC](https://forum.sierrawireless.com/t/m2m-studio-error/2909/1 "2009-02-09T14:03:44Z")
Hello, I just installed M2M Studio, and during my work I got a very very boring problem : The software works fine but sometimes, each time in fact, when I use “actions buttons” in the toolbar (as “Build All”, “Run”, etc…) an error window appears with : > [@](#): > > An internal error occurred during: “Compute launch button tooltip”. > java.lang.NullPointerException So, where does the problem come from?? Could anyone help me, please?? Thx, Oliv6931 PS : I apologize for my English… (I’m French)^^ ---
**Author:** ![daav](https://sea1.discourse-cdn.com/flex025/user_avatar/forum.sierrawireless.com/daav/32/2767_2.png) [@daav](https://forum.sierrawireless.com/u/daav)\ **Post date:** [February 10, 2009, 9:08am UTC](https://forum.sierrawireless.com/t/m2m-studio-error/2909/2 "2009-02-10T09:08:07Z")
I’ve noticed the same behaviour, but only when a “non-Open AT” (i.e. simple CDT) project is currently enabled… Do you have the issue with Open AT projects? If yes, this seems to be a quite random bug ☹ ---
**Author:** ![oliv6931](https://avatars.discourse-cdn.com/v4/letter/o/6a8cbe/32.png) [@oliv6931](https://forum.sierrawireless.com/u/oliv6931)\ **Post date:** [February 10, 2009, 10:44am UTC](https://forum.sierrawireless.com/t/m2m-studio-error/2909/3 "2009-02-10T10:44:01Z")
Thank you for your answer daav. The problem seems to be solved using an OPEN AT project. So, I only will use Open AT projects ^^. Thank you very much for your help, have a nice day!