# Ignition Designer Launch Error **URL:** \ **Category:** Ignition\ **Tags:** ignition80\ **Created:** [May 12, 2020, 8:30pm UTC](https://forum.inductiveautomation.com/t/ignition-designer-launch-error/34681 "2020-05-12T20:30:06Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![karthikeyyans](https://avatars.discourse-cdn.com/v4/letter/k/d78d45/32.png) [@karthikeyyans](https://forum.inductiveautomation.com/u/karthikeyyans)\ **Post date:** [May 12, 2020, 8:30pm UTC](https://forum.inductiveautomation.com/t/ignition-designer-launch-error/34681/1 "2020-05-12T20:30:06Z")
I am unable to launch Ignition Designer and facing the below error: ![Captur1e](https://us1.discourse-cdn.com/inductiveautomation/original/2X/b/bee25258ba1ad3ed851d1d2095c48629d4e0b682.jpeg) I do have my username/password added to User/Roles and have been using for a year, All of a sudden something is broke. Has anyone faced an error like this? ---
**Author:** ![Kevin.Herron](https://sea1.discourse-cdn.com/inductiveautomation/user_avatar/forum.inductiveautomation.com/kevin.herron/32/7259_2.png) [@Kevin.Herron](https://forum.inductiveautomation.com/u/Kevin.Herron)\ **Post date:** [May 12, 2020, 8:49pm UTC](https://forum.inductiveautomation.com/t/ignition-designer-launch-error/34681/2 "2020-05-12T20:49:57Z")
Try deleting that entire `pylib` folder and then launch the designer again. ---
**Author:** ![karthikeyyans](https://avatars.discourse-cdn.com/v4/letter/k/d78d45/32.png) [@karthikeyyans](https://forum.inductiveautomation.com/u/karthikeyyans)\ **Post date:** [May 15, 2020, 11:50am UTC](https://forum.inductiveautomation.com/t/ignition-designer-launch-error/34681/3 "2020-05-15T11:50:05Z")
@Kevin.Herron - Recently made a folder level change of viewing hidden files from the folder - Users/xxx/ that gave this error. Reverting my changes back to Hidden solved it.