docker buildでエラー ["/tripcode": not found]

[sg3t41]

docker buildのエラー "tripcode"はモックを自前で作る必要がありますか？

gikopoi2 master  docker build .
[+] Building 1.4s (10/13)                                                                                docker:default
 => [internal] load build definition from Dockerfile                                                               0.0s
 => => transferring dockerfile: 425B                                                                               0.0s
 => [internal] load metadata for docker.io/library/node:16-alpine                                                  0.9s
 => [internal] load .dockerignore                                                                                  0.0s
 => => transferring context: 161B                                                                                  0.0s
 => CANCELED [1/9] FROM docker.io/library/node:16-alpine@sha256:a1f9d027912b58a7c75be7716c97cfbc6d3099f3a97ed84aa  0.3s
 => => resolve docker.io/library/node:16-alpine@sha256:a1f9d027912b58a7c75be7716c97cfbc6d3099f3a97ed84aa490be9dee  0.0s
 => => sha256:72e89a86be58c922ed7b1475e5e6f151537676470695dd106521738b060e139d 1.16kB / 1.16kB                     0.0s
 => => sha256:2573171e0124bb95d14d128728a52a97bb917ef45d7c4fa8cfe76bc44aa78b73 6.73kB / 6.73kB                     0.0s
 => => sha256:7264a8db6415046d36d16ba98b79778e18accee6ffa71850405994cffa9be7de 0B / 3.40MB                         0.4s
 => => sha256:eee371b9ce3ffdbb8aa703b9a14d318801ddc3468f096bb6cfeabbeb715147f9 0B / 36.63MB                        0.4s
 => => sha256:93b3025fe10392717d06ec0d012a9ffa2039d766a322aac899c6831dd93382c2 0B / 2.34MB                         0.4s
 => => sha256:a1f9d027912b58a7c75be7716c97cfbc6d3099f3a97ed84aa490be9dee20e787 1.43kB / 1.43kB                     0.0s
 => [internal] load build context                                                                                  0.3s
 => => transferring context: 70.10kB                                                                               0.2s
 => CACHED [2/9] RUN apk add git                                                                                   0.0s
 => CACHED [3/9] WORKDIR /gikopoipoi                                                                               0.0s
 => CACHED [4/9] ADD package.json ./package.json                                                                   0.0s
 => CACHED [5/9] ADD yarn.lock ./yarn.lock                                                                         0.0s
 => ERROR [6/9] ADD tripcode ./extra_modules/tripcode                                                              0.0s
------
 > [6/9] ADD tripcode ./extra_modules/tripcode:
------

 1 warning found (use docker --debug to expand):
 - JSONArgsRecommended: JSON arguments recommended for CMD to prevent unintended behavior related to OS signals (line 17)
Dockerfile:12
--------------------
  10 |     ADD package.json ./package.json
  11 |     ADD yarn.lock ./yarn.lock
  12 | >>> ADD tripcode ./extra_modules/tripcode
  13 |     RUN yarn install
  14 |     
--------------------
ERROR: failed to solve: failed to compute cache key: failed to calculate checksum of ref a534cc35-95ec-4337-8f02-f9a335ab7878::rgarfhx3g1rvk172c1ltmom9v: "/tripcode": not found