How to switch to different frame with nvim-dap for c++ programming debugging?

[lainegates]

Hi, I try nvim-dap recently, it works great for small program debugging!

When I switch to a big project, it doesnot work as expected.
While debugging, when it encounters a crash, the nvim-dap stops as exptected.

But when I try to switch different frame in bracktrace, it told me this.

Could anyone help me?