You are using an other Dockerfile. Look at the steps during the build:
- FROM
- COPY
- WORDKIR
- RUN
- RUN
- COPY
- RUN
and look at the instructions in the Dockerfile
- FROM
- COPY
- WORKDIR
- COPY
- RUN
- CMD
Try to read the file from the terminal:
cat Dockerfile
Do you edit your files on a different machine and synchronize after that?