While generating a certificate with the appery.io console or importing a custom one, I use $ sign inside certificate password for increase the security.
This generate a compile error while exporting the application as apk.
I try to make the same steps but with a password without the $ sign and the compiling worked as aspected.
I write this post for other people that get the error:
"App signing error has occurred. Please check your key/certificate alias and passwords"
while compiling and for the appery.io team for fix the issue!
Perhaps this error happen also with other special chars and not only with $ sign.
I don't know if this is a random issue or others can reproduce the error but it worth the effort to give a try!
Best regards
Marco