Upsource 2017.2 Help

Error: "Test VCS connection failed. Error while loading an uploaded key. Invalid privatekey"

When creating a new project in Upsource, you get to choose one of the following authentication methods to access your VCS:

  • Anonymous
  • Password
  • SSH key

If you select SSH key, you should also provide a private key and passphrase (if any). After that, while testing the connection, you might get the following error:

Test VCS connection failed. List remote refs failed: com.jcraft.jsch.JSchException: Error while loading an uploaded key 'the-key': invalid privatekey


Most likely your public/private key pair was generated via PuTTYgen. Upsource doesn't work with the PuTTY-format private keys, so you would need to convert it to the OpenSSH format. To do that, please perform the following steps:

  1. Open PuttyGen

  2. Click File | Load private key

  3. Go to Conversions | Export OpenSSH and export your private key

  4. Paste the converted private key into Upsource

Last modified: 1 December 2017