This error is raised when a built$-$in operation or function receives an argument that has the right type but an inappropriate value.

$>>>$ a $=\text{'}1\text{'}>>>$ b $=\text{'}$#$\text{'}>>>$ print int$($a$)/$ int$($b$)>>>$ ValueError: invalid literal for int$()$ with base $10$: $\text{'}$#$\text{'}$