Error: Cannot copy '../semver/bin/semver.js' to a subdirectory of itself

If you run test:ember-compatibility more than once, it fails with the following:

Error!
Error: Cannot copy '../semver/bin/semver.js' to a subdirectory of itself, '../semver/bin/semver.js'.
Error: Cannot copy '../semver/bin/semver.js' to a subdirectory of itself, '../semver/bin/semver.js'.
    at /home/*****/*****/e4a/node_modules/fs-extra/lib/copy/copy.js:210:21
    at FSReqCallback.oncomplete (node:fs:188:23)

Steps to reproduce:

ember addon e4a
cd e4a
npm install
npm run test:ember-compatibility
num run test:ember-compatibility

I had a co-worker try the same steps and he got the same error.

[ro0gr]

FYI, For me downgrading to the ember-try@1.4.0 worked around this issue.

[sly7-7]

For me it did it after the first run, now I can’t run try:each at all, even if I clear lockfile, node_modules and npm cache.

@knownasilya I had the same problem here, trying to run ember try:one on ember-elsewhere. To make it work again, I have to manually rm .node_modules.ember-try package-lock.json.ember-try package.json.ember-try Seems like the “cleanup” (or the revert to the “initial state” of dependencies is not done correctly after running ember try.

Also, the buggy behavior is independent from running with yarn 1 or npm