Docker image having issue

[Suthaharjs]

Hi @klobermajer @pkarw and alll, I am getting this issue while excute, Can you please help me on this

ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref e705ebc2-2aa0-418e-abc8-c41ee6cebbb1::rjwqtcl6g70pde4yeu0ubafbl: "/backend": not found

• The terminal process "/bin/bash '-c', 'docker build --pull --rm -f "ci/php/fpm-dockerfile" -t docker:latest "ci/php"'" terminated with exit code: 1.
• Terminal will be reused by tasks, press any key to close it.

[ewsindia]

=> CANCELED [php] https://www.phing.info/get/phing-latest.phar 0.8s => ERROR [php base 2/15] RUN easy_install supervisor 0.8s

[php base 2/15] RUN easy_install supervisor: 0.251 Searching for supervisor 0.251 Reading https://pypi.python.org/simple/supervisor/ 0.634 Couldn't find index page for 'supervisor' (maybe misspelled?) 0.634 Scanning index of all packages (this may take a while) 0.634 Reading https://pypi.python.org/simple/ 0.770 No local packages or download links found for supervisor 0.770 error: Could not find suitable distribution for Requirement.parse('supervisor')

failed to solve: process "/bin/sh -c easy_install supervisor" did not complete successfully: exit code: 1

[ewsindia]

=> ERROR [php base 12/16] COPY --from=composer /usr/local/bin/composer /usr/local/bin/composer 0.0s

[php base 12/16] COPY --from=composer /usr/local/bin/composer /usr/local/bin/composer:

failed to solve: failed to compute cache key: failed to calculate checksum of ref 2616ffbd-9978-48d5-aa84-6b2db542f6ea::jyedhir2y2w9a1b5orbcgz0dx: "/usr/local/bin/composer": not found

[ewsindia]

I changed it to latest and it started giving previous error,then I commented out compose line then it started giving me first error "easy_install" => ERROR [php internal] load metadata for docker.io/composer/composer:1.1-alpine 1.6s => [php auth] composer/composer:pull token for registry-1.docker.io