Using path to an image in a different folder doesn't work.

[burntime]

$: tinypng htdocs/img/s/sprite_invite_webmail_r4.png
tinypng: Make backup copy
tinypng: Crush file
Could not find file: .tinypngtmp/htdocs/img/s/sprite_invite_webmail_r4-pngnq.png
Could not find file: .tinypngtmp/htdocs/img/s/sprite_invite_webmail_r4-pngcrush.png
File .tinypngtmp/htdocs/img/s/sprite_invite_webmail_r4-pngout.png doesn't exist [at void rezip_single(const string &, unsigned long long &, unsigned long long &):repng.cc:276]
mv: .tinypngtmp/htdocs/img/s/sprite_invite_webmail_r4-pngout.png: No such file or directory
htdocs/img/s/sprite_invite_webmail_r4.png Saved: 0 Bytes (0 %)
tinypng: Compress backup

[simeon2020]

This leaves tinypng broken as directories can't be processed. Unless I'm holding it wrong?

$ tinypng latest
tinypng: Make backup copy
tinypng: Count files
tinypng: Crush directory
[1/346](0 %) >> latest/large_box.pngCould not find file: .tinypngtmp/latest/large_box-pngnq.png
Could not find file: .tinypngtmp/latest/large_box-pngcrush.png
File .tinypngtmp/latest/large_box-pngout.png doesn't exist [at void rezip_single(const std::string&, long long unsigned int&, long long unsigned int&):repng.cc:276]
mv: .tinypngtmp/latest/large_box-pngout.png: No such file or directory

Saved: 0 Bytes (0 %)

[burntime]

Unfortunately it's broken to. Most likely from the same change. You can rollback to 9796bc5 until this bug is fixed.