Dockerfile for QT compilation: can’t find ./configure

I’m writing a dockerfile that installs Qt from source:

FROM ubuntu:bionic

ARG QT_FILE_LINK=http://download.qt.io/official_releases/qt/5.11/5.11.3/single/qt-everywhere-src-5.11.3.zip

RUN apt-get update 
    && apt-get install -y --no-install-recommends build-essential

RUN wget --progress=bar:force -O qt.zip $QT_FILE_LINK
RUN echo "Unzipping..." && unzip -q qt.zip
RUN rm qt.zip && cd qt-everywhere-src-* && ls && ./configure 
  -confirm-license -opensource 
  -nomake examples -nomake tests -no-compile-examples 
  -no-xcb 
  -prefix "/usr/local/Qt"

ENTRYPOINT "/bin/bash"

The problem is that it fails on the ./configure, even though you can see that the previous command, which is ls, shows that there is indeed a configure file.

It says

/bin/sh: 1: ./configure: not found

Source: StackOverflow