Windows error `pack build app`

[ericis]

Following the "get started" tutorial: https://buildpacks.io/docs/app-journey/

*Fresh clone of this repository today.

I've tried Windows Command Line as well as a Git Bash terminal for Windows 2.19.1.

• Windows 10 Professional
• pack version -> v0.2.0 (git sha: 6ef61143dfbc67975841c55e34ef0fceef0af88c)
• docker --version -> Docker version 18.09.2, build 6247962

What else do you need? I will also try Windows Sub-system for Linux and update this issue.

Logs

*I will submit a separate issue for the odd console output of the characters, but I think that is a bug for pack.

$ pack build myapp
?[90m?[0mUsing default builder image ?[94mcloudfoundry/cnb:cflinuxfs3?[0m
?[90m?[0mPulling image ?[94mindex.docker.io/cloudfoundry/cnb:cflinuxfs3?[0m
cflinuxfs3: Pulling from cloudfoundry/cnb
Digest: sha256:758bd1a261e384f0a5495db89cca9ba447dddda00ab60f9d47fe8f788efa4d4e
Status: Image is up to date for cloudfoundry/cnb:cflinuxfs3
?[90m?[0mSelected run image ?[94mcfbuildpacks/cflinuxfs3-cnb-experimental:run?[0m from builder
?[90m?[0mPulling image ?[94mcfbuildpacks/cflinuxfs3-cnb-experimental:run?[0m
run: Pulling from cfbuildpacks/cflinuxfs3-cnb-experimental
Digest: sha256:8af4e9c5a23a9d2f892cf9a79f768231874911ba0b744f8f712f53f4bc978acc
Status: Image is up to date for cfbuildpacks/cflinuxfs3-cnb-experimental:run
?[90m?[0mUsing build cache image ?[94mpack-cache-40a311b545d7?[0m
?[90m?[0mWarning: lifecycle version unknown
?[90m?[0m?[36m===> DETECTING?[0m
?[90m?[0m[?[36mdetector?[0m] Trying group of 8...
?[90m?[0m[?[36mdetector?[0m] ======== Results ========
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry OpenJDK Buildpack: pass
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry Build System Buildpack: pass
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry JVM Application Buildpack: pass
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry Azure Application Insights Buildpack: skip
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry Debug Buildpack: skip
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry Google Stackdriver Buildpack: skip
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry JMX Buildpack: skip
?[90m?[0m[?[36mdetector?[0m] Cloud Foundry Procfile Buildpack: skip
?[90m?[0m?[36m===> RESTORING?[0m
?[90m?[0m[?[36mrestorer?[0m] cache image 'pack-cache-40a311b545d7' not found, nothing to restore
?[90m?[0m?[36m===> ANALYZING?[0m
?[90m?[0m[?[36manalyzer?[0m] WARNING: image 'index.docker.io/library/myapp:latest' not found or requires authentication to access
?[90m?[0m[?[36manalyzer?[0m] WARNING: image 'index.docker.io/library/myapp:latest' has incompatible 'io.buildpacks.lifecycle.metadata' label
?[90m?[0m?[36m===> BUILDING?[0m
?[90m?[0m[?[36mbuilder?[0m] ?[31;1m----->?[0m ?[34;1mCloud Foundry OpenJDK Buildpack?[0m ?[34m1.0.0-M6?[0m
?[90m?[0m[?[36mbuilder?[0m] ?[31;1m----->?[0m ?[34;1mOpenJDK JDK?[0m ?[34m11.0.2?[0m: ?[33mContributing?[0m to layer
?[90m?[0m[?[36mbuilder?[0m]        ?[33mDownloading?[0m from https://java-buildpack.cloudfoundry.org/openjdk-jdk/bionic/x86_64/openjdk-11.0.2_09.tar.gz
?[90m?[0m[?[36mbuilder?[0m]        Verifying checksum
?[90m?[0m[?[36mbuilder?[0m]        Expanding to /layers/org.cloudfoundry.openjdk/openjdk-jdk
?[90m?[0m[?[36mbuilder?[0m]        Writing JAVA_HOME to build
?[90m?[0m[?[36mbuilder?[0m]        Writing JDK_HOME to build
?[90m?[0m[?[36mbuilder?[0m] ?[31;1m----->?[0m ?[34;1mOpenJDK JRE?[0m ?[34m11.0.2?[0m: ?[33mContributing?[0m to layer
?[90m?[0m[?[36mbuilder?[0m]        ?[33mDownloading?[0m from https://java-buildpack.cloudfoundry.org/openjdk/bionic/x86_64/openjdk-11.0.2_09.tar.gz
?[90m?[0m[?[36mbuilder?[0m]        Verifying checksum
?[90m?[0m[?[36mbuilder?[0m]        Expanding to /layers/org.cloudfoundry.openjdk/openjdk-jre
?[90m?[0m[?[36mbuilder?[0m]        Writing JAVA_HOME to shared
?[90m?[0m[?[36mbuilder?[0m]
?[90m?[0m[?[36mbuilder?[0m] ?[31;1m----->?[0m ?[34;1mCloud Foundry Build System Buildpack?[0m ?[34m1.0.0-M6?[0m
?[90m?[0m[?[36mbuilder?[0m] ?[31;1m----->?[0m Using wrapper
?[90m?[0m[?[36mbuilder?[0m]        Linking Cache to /home/vcap/.m2
?[90m?[0m[?[36mbuilder?[0m] ?[31;1m----->?[0m ?[34;1mCompiled Application?[0m: ?[33mContributing?[0m to layer
?[90m?[0m[?[36mbuilder?[0m] fork/exec /workspace/mvnw: permission denied
?[90m?[0m[?[36mbuilder?[0m] Error: failed to : exit status 103
?[90m?[0m
?[31;1mERROR: ?[0mfailed with status code: 7

[JJWTimmer]

I used the 2nd listed buildpack (cf including python). When I switched to heroku/buildpacks it worked.