Hi there, I've been having the same problem with XCom 2 editor not opening. Tried most of the same solutions and was finding files needed verification after every run. Just managed to get it to run again by verifying both cahes (SDK & game) and emptying my Steam\steamapps\common\XCOM 2 SDK\XComGame\mods folder. Going to try and reload the upk I was working on and see what happens. Update: New to modding so going to post my entire process here since I can't be sure exactly what is relevant -Loaded up my UPK and made some changes; removed a couple of files I was experimenting with, saved and closed editor, no problems. -Loaded mod in modbuddy and built solution. Did NOT debug; went straight into tools and tried to open XCom2 Editor again -Same error as before, would not load -Deleted contents of Steam\steamapps\common\XCOM 2 SDK\XComGame\mods folder. -Tried to run editor: success -Loaded my mods UPK, removed Caucasian skin texture & commented out reference to it in modbuddy. All other files had worked in a previous version. -Saved & built. -Tried to run editor: Failed -Deleted UPK files only from mods folder -Tried to run editor: Failed -Deleted contents of mods folder again -Tried to run editor: success So, at this point I'm pretty sure it's something in my mod but not the UPK. Anyone know what else the editor might reference? Update 2: Trial and error time, yaaaay... -removed src folder: still broken -removed localisation folder: still broken -removed config folder: Working! -Build solution, removed config\XcomEngine.ini: still broken -removed config\XcomEditor.ini (I have a good feeling about this one!): still broken -removed config\XcomGame.ini: -Build solution, removed config\XcomContent.ini only: Working! OK so here's my XcomContent.ini (don't worry it's a small mod): And we're off again: -Deleted all text to check for file corruption (maybe this isn't my fault somehow?): Working -FINE. -Replaced all text, removed all comment lines after ;Attempt to change colour palette options for skin: Working -Replaced all text, deleted everything above ;Attempt to change colour palette options for skin: Broken -Replaced all text, deleted line: ;[XComGame.XComContentManager] : working -commented out [XComGame.X2BodyPartTemplateManager] : Working -Added line: [XComGame.XComContentManager] :Broken So, my conclusion is this: the line [XComGame.XComContentManager] in XcomContent.ini somehow breaks the editor, even if commented out. The question is, does this fix anyone elses problem? Or are there other lines that might be causing this problem? TLDR: Try DELETING (not commenting out) this line from your XcomContent.ini if it's there:
[XComGame.XComContentManager]
If not, try deleting similar lines (after making a backup) and see if it helps.
