# Troubleshooting Common Issues - Weird macro error with a very tall call stack: Restart Visual Studio Code - NOTE: This is caused by Polymod somewhere, and seems to only occur when there is another compile error somewhere in the program. There is a bounty up for it. - `Get Thread Context Failed`: Turn off other expensive applications while building - `Type not found: T1`: This is thrown by `json2object`, make sure the data type of `@:default` is correct. - NOTE: `flixel.util.typeLimit.OneOfTwo` isn't supported. - `Class lists not properly generated. Try cleaning out your export folder, restarting your IDE, and rebuilding your project.` - This is a bug specific to HTML5. Simply perform the steps listed (don't forget to restart the IDE too). - `LINK : fatal error LNK1201: error writing to program database ''; check for insufficient disk space, invalid path, or insufficient privilege` - This error occurs if the PDB file located in your `export` folder is in use or exceeds 4 GB. Try deleting the `export` folder and building again from scratch.