[Android Studio] Missing Constraint in ConstraintLayout

[안드로이드 스튜디오] 컨스트레인트 레이아웃 설정 오류

문제

FragmentContainerView가 삽입되지 않는다

OK를 눌렀는데도 안 된다

있었는데요

없었습니다

Missing Constraints in ConstraintLayout

This view is not constrained.
It only has designtime positions, so it will jump to (0,0) at runtime unless you add the constraints

The layout editor allows you to place widgets anywhere on the canvas, and it records the current position with designtime attributes (such as layout_editor_absoluteX).
These attributes are not applied at runtime, so if you push your layout on a device, the widgets may appear in a different location than shown in the editor.
To fix this, make sure a widget has both horizontal and vertical constraints by dragging from the edge connections.

Issue id: MissingConstraints

Vendor: Android Open Source Project Contact: https://groups.google.com/g/lint-dev
Feedback: https://issuetracker.google.com/issues/new?component=192708

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해결 방법

Infer Constraints를 클릭하거나(위치 자동 지정)

크기 및 위치를 조정해주면 된다

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참고

Android : missing constraints in constraintlayout 해결방법