Deploy fails with other Rail projects

[mkokabi]

Hi,
I am trying with a sample created by

rails new demo

while I push my changes the deployment starts but it would fail with this error:

Command: "/home/site/deployments/tools/deploy.sh"
ENOENT: no such file or directory, open '/opt/nodejs/12.13.0/npm.txt'
Handling node.js deployment.
Kudu sync from: '/home/site/repository' to: '/home/site/wwwroot'
Copying file: 't1.txt'
Ignoring: .git
Detecting node version spec...
Using default version: 12.13.0
Node.js versions available on the platform are: 4.4.7, 4.5.0, 4.8.0, 6.2.2, 6.6.0, 6.9.3, 6.10.3, 6.11.0, 6.17.1, 8.0.0, 8.1.4, 8.2.1, 8.8.1, 8.9.4, 8.11.2, 8.12.0, 8.15.1, 8.16.2, 9.4.0, 10.1.0, 10.10.0, 10.14.2, 10.17.0, 12.13.0.
Resolved to version 12.13.0
Detecting npm version spec...
An error has occurred during web site deployment.
select node version failed
ENOENT: no such file or directory, open '/opt/nodejs/12.13.0/npm.txt'\n/opt/Kudu/KuduConsole/Scripts/starter.sh "/home/site/deployments/tools/deploy.sh"

[AlexJuca]

Mohsen Kokabi (@mkokabi) Were you able to solve this issue?

[mkokabi]

no

[kaysiz]

any solution to this, I am also facing the same problem. ruby 2.6.2 and Rails 6.0.0

[egachi]

Hello, I was able to resolve this issue using this app setting: SCM_SCRIPT_GENERATOR_ARGS=--ruby, it seems that Kudu is passing node as default script generator instead of ruby, also review Gemfile.lock for setting bundler version bundled with to 1.17.2 for Ruby 2.6.2