I want to use dap-mode to debug a C++ code. Until now I followed instructions dap-mode (LLDB) and lldb-vscode. I further enabled the mode and UI via

(dap-mode 1)
(dap-ui-mode 1)

When I execute dap-debug I can select the LLDB template, but when executing I get the following message:

No messages handler for process

I tried to tweak the template file via dap-debug-edit-template. The current template has the following form:

(dap-register-debug-template "LLDB::Run"
  (list :type "lldb"
        :cwd "/Users/knowledge/Developer/Tutorials/Cpp"
        :request "launch"
        :program "/Users/knowledge/Developer/Tutorials/Cpp/Debug/main"
        :name "LLDB::Run"))

How can I get this running?

  • could you be missing lsp-server ?
    – apmattil
    Jan 12, 2020 at 20:19
  • Did you try the type as "lldb-vscode"? I saw all templates uses that.
    – Jeff
    Jul 3, 2020 at 15:31
  • Did you get anywhere with this?
    – RichieHH
    Jun 8, 2021 at 19:53

1 Answer 1


I have the same issue until I set a breakpoint. After breakpoint debugging is start successfully and execution stops on breakpoint

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