This is given if VM can't find the thread symbol for a message. Why is this arising? The error came up in the process of doing vm-summary-faces-add for some message, which runs vm-vs-thread-all.
Running vm-fix-my-summary didn't help. Perhaps the threads are unbuilt and that doesn't help the problem.
Running (vm-build-thread-if-unbuilt) solved the problem.
Trying to quit a folder gave this error:
VM internal threading error: vm-thread-subtree
This is given if VM can't find the thread symbol for a message. Why is this arising? The error came up in the process of doing vm-summary- faces-add for some message, which runs vm-vs-thread-all.
Running vm-fix-my-summary didn't help. Perhaps the threads are unbuilt and that doesn't help the problem.
Running (vm-build- thread- if-unbuilt) solved the problem.