I am having the same problem. I had created and funded an account on the web wallet a few weeks ago. Now that the upgrade has come out I can't gain access to the wallet I get the error "Transaction was not signed. Do you have a private key? [no_signers]". What hoops do I have to jump through to gain access again? I tried uploading the wallet backup but since I don't have the old downloaded wallet (was just using openledger) it looks like I don't have the "BTS 0.9.X KEY EXPORT FILE" which isn't the .bin.
Yours is a different problem, it means the wallet you're using does not contain the private keys for that account. Did you create a new wallet? Switch browsers/pc?
Hello,
I have the same error: "Transaction was not signed. Do you have a private key? [no_signers]".
I recently switched to Chrome and delete the old browser. I didn't know I must make a backup of my wallet.
I have the username and password of the account. Isn't a way to recover the account?
Any help would be appreciated,
Bogdan