Students and university employees who saw the fliers contacted the administration, which looked into the matter.
Sheridan said that she did not know who was behind the effort but that the investigation revealed it was "a very innocent and naive attempt to create some sense of activism," she said.
"They wanted a reaction, then get students to come together to talk about it," she said, adding that no disciplinary action was taken.
The state university is overwhelmingly white, with 2,300 of the 14,500 students identified as minorities.
In a campuswide e-mail Wednesday, the school said the flier had "caused a great deal of upset and concern on campus. In investigating the situation, we have learned that the meeting was, in fact, designed to draw antiracist allies together. There is no White Student Union at West Chester University, and there is no meeting."
A junior, Adam Rizzo, who said he wasn't involved with the poster, said he could understand how some people might want to start what he referred to as a European-based cultural group.
"All we're looking for is equal representation. What's wrong with having something European that encompassed a wide range of people that was culturally based?" asked Rizzo, a music major and university ambassador.
"Here at West Chester University we have multiple groups that exemplify reverse racism such as Black Student Union, Black Men United, National Association of Black Accountants, just to name a few. It is terrible that the formation of a group whose sole purpose was to have equal representation on campus was so rudely scolded and shut down," he said.
Contact staff writer Kathy Boccella at 610-313-8123 or kbocella@phillynews.com.