"At least start marker must be specified. Aborting request."

[rob-lindman]

installed syntaxfold. added:

//region test 

//endregion.

After hitting the hotkey, this shows up in the console and nothing happens.

"At least start marker must be specified. Aborting request."

[AlLoud]

Your issue may be due to any of the reasons:

• the markers you defined in Preferences > Package Settings > Syntax Fold >Settings - User: if you have not changed this file and extensions, check first which type of files where you are trying to use those markers: //region and //endregion markers are only for java, js and php files;
• you have not changed Preferences > Package Settings > Syntax Fold >Key Bindinds and you only pressed Alt + 1 once (you need to press twice to toggle);
• for unfolding, the cursor of your mouse needs to be at the end of the start marker (in your case to the right of the final t). If you place it for example near the r you will only be able to fold that block.

The main page https://github.com/jamalsenouci/sublimetext-syntaxfold/ explains these well.