@@ -72,10 +72,14 @@ func (c *Config) validate() error {
 				return fmt.Errorf("providers.%s: %s", k, diags.Err().Error())
 			}
 		}
-		for _, c := range cs.Versions {
-			if _, err := getproviders.ParseVersionConstraints(c); err != nil {
-				return fmt.Errorf("providers.%s: %s", k, err)
+		if len(cs.Versions) > 0 {
+			for _, c := range cs.Versions {
+				if _, err := getproviders.ParseVersionConstraints(c); err != nil {
+					return fmt.Errorf("providers.%s: %s", k, err)
+				}
 			}
+		} else {
+			return fmt.Errorf("provider.%s: required \"versions\" argument not found", k)
 		}
 	}
Original file line number	Diff line number	Diff line change
`@@ -72,10 +72,14 @@ func (c *Config) validate() error {`
`72`	`72`	`return fmt.Errorf("providers.%s: %s", k, diags.Err().Error())`
`73`	`73`	`}`
`74`	`74`	`}`
`75`		`- for _, c := range cs.Versions {`
`76`		`- if _, err := getproviders.ParseVersionConstraints(c); err != nil {`
`77`		`- return fmt.Errorf("providers.%s: %s", k, err)`
	`75`	`+ if len(cs.Versions) > 0 {`
	`76`	`+ for _, c := range cs.Versions {`
	`77`	`+ if _, err := getproviders.ParseVersionConstraints(c); err != nil {`
	`78`	`+ return fmt.Errorf("providers.%s: %s", k, err)`
	`79`	`+ }`
`78`	`80`	`}`
	`81`	`+ } else {`
	`82`	`+ return fmt.Errorf("provider.%s: required \"versions\" argument not found", k)`
`79`	`83`	`}`
`80`	`84`	`}`
`81`	`85`