1 files changed, 7 insertions, 0 deletions

diff --git a/vendor/github.com/hashicorp/terraform/configs/version_constraint.go b/vendor/github.com/hashicorp/terraform/configs/version_constraint.go
index 7aa19ef..e40ce16 100644
--- a/vendor/github.com/hashicorp/terraform/configs/version_constraint.go
+++ b/vendor/github.com/hashicorp/terraform/configs/version_constraint.go
@@ -45,6 +45,13 @@ func decodeVersionConstraint(attr *hcl.Attribute) (VersionConstraint, hcl.Diagno
                 return ret, diags
         }
 
+        if !val.IsWhollyKnown() {
+                // If there is a syntax error, HCL sets the value of the given attribute
+                // to cty.DynamicVal. A diagnostic for the syntax error will already
+                // bubble up, so we will move forward gracefully here.
+                return ret, diags
+        }
+
         constraintStr := val.AsString()
         constraints, err := version.NewConstraint(constraintStr)
         if err != nil {