Project not recognized when opening second project file

[RudolfVonKrugstein]

I open a openfl project file, everyhting works fine. I am asked for the project type.
But when I open a second file of the same project, I get:

function vaxe#AutomaticHxml..vaxe#lime#ProjectLime..vaxe#lime#BuildLimeHxml, line 2
Vim(echoerr):A lime project file can not be located, please select one with :ProjectLime
Error occured while executing action!
Action name is open 

The files are in the same directory and the error always occurs on the second file, no matter which is opend first (or second).

[RudolfVonKrugstein]

Sorry, that is a duplicate of #45 and alrady solved.