Included some error messages.

ros2rag.base/src/main/jastadd/Analysis.jrag

ros2rag.base/src/main/jastadd/Errors.jrag

ros2rag.base/src/main/jastadd/Navigation.jrag

ros2rag.base/src/main/jastadd/Ros2Rag.relast

ros2rag.base/src/main/jastadd/backend/Generation.jadd

ros2rag.base/src/main/jastadd/backend/Mappings.jrag

.../src/main/java/org/jastadd/ros2rag/compiler/Compiler.java

ros2rag.tests/src/test/01-input/errors/Errors.expected

ros2rag.tests/src/test/01-input/errors/Errors.relast

ros2rag.tests/src/test/01-input/errors/Errors.ros2rag

ros2rag.tests/src/test/01-input/errors/README.md

...tests/src/test/java/org/jastadd/ros2rag/tests/Errors.java

...ts/src/test/java/org/jastadd/ros2rag/tests/TestUtils.java