Description of Problem: I'm trying to send bitcoin out of PC based wallet I have not used in a while. Client is up and running(syncd to network). I select send and put the correct destination address in the pay to field, press tab and the pay to field is red. At this point, it won't let me send anything out. What is the problem and how can I fix it?
It will be highlighted in red if the string is invalid.
Could it be that you're trying to send to a bech32/bech32m address (
starts with "bc1")?
Because Bitcoin Core v0.14.0 doesn't support sending to SegWit addresses.
If not, try to check each characters since a Bitcoin address has checksum, one wrong character will invalidate it.