Why This Happens
Go struct literals can use either field:value syntax or positional syntax, but not a mixture. Positional syntax requires providing all fields in order and is fragile. Named syntax is recommended because it is explicit and survives field reordering.
The Problem
type Point struct {
X int
Y int
Z int
}
p := Point{X: 1, 2, Z: 3} // mixture of field:value and valueThe Fix
p := Point{X: 1, Y: 2, Z: 3}Step-by-Step Fix
- 1
Identify the mixed initializer
Find the struct literal that mixes named and positional field values.
- 2
Choose one style
Pick either all named fields (recommended) or all positional values.
- 3
Update the literal
Add field names to all values or remove all field names.
Got the actual stack trace?
Paste it into our free AI explainer to get the cause and the fix for your specific case — no signup, nothing to install.
Explain my errorBugsly catches this automatically
Bugsly's AI analyzes this error pattern in real-time, explains what went wrong in plain English, and suggests the exact fix — before your users even report it.
Try Bugsly free