您好，

这是一个已经提出的问题Microsoft支持级别，拭目以待。

与此同时，您似乎可以测试为Internet级安全设置禁用保护模式，然后重新启动IE。似乎它适用于MS支持的人，但不适合我。

Jeremy

We use Project Online with Project Professional Pro 2013 and am now unable to edit the enterprise calendar.

When I try to edit or create an enterprise calendar from PWA | Enterprise Calendars (Usine IE 11), it errors with 'Project cannot open the file.' twice then after a delay another message pops up that says 'You need to have Microsoft Project Professional 2016 Preview installed and configured to connect to a profile for this Project Web App site.'

In PWA | Additional Server Settings,  I have allowed Project versions '15.0.4128.1014' and above.  My Project Professional Version is '15.0.4569.1504'.

I seem to be capable of saving project files to the project online server fine, though.

Please help.

Hello,

This is an issue already raised at Microsoft support level, wait and see.

On the meantime it seems you can test to disable Protected Mode for the Internet-level security setting and then restart IE. Seems it worked for someone on MS support, but not for me.

Jeremy