PDB Upload

Microsoft PDB files are not yet supported directly by Sentry. Until we provide official support, you can convert them to Breakpad symbols and upload those instead:

  1. Obtain the .pdb file and put it on a Windows machine
  2. Download our Breakpad Tools for Windows and extract dump_syms.exe
  3. Run dump_syms foo.pdb > foo.sym
  4. Follow instructions at Breakpad Symbol Upload.


“CoCreateInstance CLSID_DiaSource failed (msdia80.dll unregistered?)”

Download a copy of msdia80.dll and put it in C:\Program Files\Common Files\Microsoft Shared\VC\. Then as administrator, run:

> regsvr32 "C:\Program Files\Common Files\Microsoft Shared\VC\msdia80.dll"

Then, run the dump_syms command from a Visual Studio command prompt. This will also work with later versions, such as msdia140.dll.

“Unsupported file” error or “No debug debug information files found”

Sentry CLI or Sentry do not recognize your Breakpad symbols file, most likely due to encoding issues. Make sure the file is saved without a byte order mark (BOM).

Older PowerShell versions used to encode with BOM by default. To prevent this, set the $OutputEncoding variable before calling dump_syms.