Why does TortoisePlink.exe show "No supported authentication methods available" where plink.exe works fine?

Question

I have both TortoiseHg 2.3 64 bit and TortoiseGit 1.7.7 64 bit installed on Vista 64 bit.

Both TortoiseHg (ssh = "C:\Program Files\TortoiseHg\TortoisePlink.exe" -ssh -2 -C -batch entry in mercurial.ini) and TortoiseGit (GIT_SSH environment variable set to C:\Program Files\TortoiseGit\bin\TortoisePlink.exe) are configured to use PuTTy's plink (command-line interface to the PuTTY back ends) versions distributed with them.

I have Pageant (PuTTy authentification client) running and proper ssh key loaded. However any hg or git command results in error dialog titled PuTTY Fatal Error being displayed with the message:

Disconnected: No supported authentication methods available. (server sent:publickey)

At the same time using original plink.exe provided with PuTTy works.

Why doesn't TortoisePlink work?

Solution

There is a problem with 64-bit TortoiseSVN working with 32-bit pageant. Either use 32-bit TortoiseSVN (IMO there is no real need for it to be 64-bit). Unofficially, the devs only supply 32-bit binaries. A 64-bit build of PuTTY is available here.

It seems that the TortoiseSVN devs put the blame on PuTTY...

Comments

[billc.cn]

It seems the authors of Tortoise* used a modified plink to show you a password prompt and in the process may have made it incompatible with other methods of authentication. Could you point the configuration files to the original plink and see what happens?

[Piotr Dobrogost]

Setting the original plink in configuration files solves the problem but I'm curious why branded versions do not work. Especially since I remember that the one from hg used to work in the past.

[Lazy Badger]

@billc.cn - TortoisePlink have only modal windows on disconnect removed

[Lazy Badger]

Have you tried to remove all and any command-line parameters for Mercurial (maybe only adding -v is good idea)

[Piotr Dobrogost]

@LazyBadger What parameters do You have in mind?

[Lazy Badger]

With ssh = "c:\Program Files\_Tools\TortoiseHg\TortoisePlink.exe" only I work with my Pageant (x32, if it matter)

[Drahakar]

Are you sure that you added your private key to Pageant?