preview-environment: No enclosing outer environment found

[Hongyi Zhao]

With the point inside the math environment, I run the `Preview for
environment' with `C-c C-p C-e', I will meet the following error:
preview-environment: No enclosing outer environment found. I attached
the screenshot here, just FYI.

Any hints for this problem?

Regards
-- 
Assoc. Prof. Hongyi Zhao <hongyi.zhao@gmail.com>
Theory and Simulation of Materials
Hebei Vocational University of Technology and Engineering
No. 473, Quannan West Street, Xindu District, Xingtai, Hebei province

2021-07-19_08-32.png
Description: PNG image