Problem report: https://runestone.academy/ns/books/published/bfa_csawesome26/topic-1-1-intro-algorithms.html

A problem was reported through the Runestone "Report a Problem" form.

Description

Activity 1.1.1 did not compile and run for half of my class (running windows machines) and mostly Chrome browser.

They received an error:
TestRunner.java:9: error: cannot access RunestoneTests
Result result = JUnitCore.runClasses(RunestoneTests.class);
bad source file: ./RunestoneTests.java

Browser console log

[warn] No ad placements found.
[log] Timezone cookie matches, not sending timezone to server
[log] This page served by undefined
[log] triggering runestone:pre-login-complete
[log] Runestone pre-login complete
[log] Loading Runestone component: youtube
[log] Loading Runestone component: activecode
[log] Loading Runestone component: hparsons
[log] Loading Runestone component: parsons
[log] Loading Runestone component: multiplechoice
[log] Loading Runestone component: answer
[log] Loading Runestone component: feedback
[log] Loading Runestone component: datafile
[log] Waiting on MathJax!! undefined
[log] Returning mjready promise: [object Promise]
[log] before get hist
[log] before get hist
[log] before get hist
[log] before get hist
[log] before get hist
[log] before get hist
[log] before get hist
[log] Response from server: 200
[log] Waiting on MathJax!! undefined
[log] Returning mjready promise: [object Promise]
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] Response from server: 200
[log] Response from server: 200
[log] Response from server: 200
[log] Response from server: 200
[log] Response from server: 200
[log] Response from server: 200
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] Response from server: 200
[log] Data from server: "no data" calling repopulateFromStorage
[log] resolving checkServer with server data
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] making a new scrubber
[log] Fake change event, skipping the log
[log] MathJax Ready -- dequeing a typesetting run for csawesome2__AP1-1-print undefined
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-debugging
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-intro
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-debugging
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-debugging
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-intro
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-intro
[log] adding video popouts
[log] setting up pretext
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-debugging
[log] SpliceWrapper: received message subject: undefined from iframe: csawesome2__video-intro

Start at Activity 1.1.1 on the linked course page and inspect the generated TestRunner.java and RunestoneTests.java mentioned in the compiler error. Reproduce the failure on a Windows machine in Chrome, then verify that the activity compiles and runs successfully for the reported setup.