Hello Sotiri,
I did use the File > export HTML menu which creates the HTML directory with index.html and experiment js files.
I just tried to run a local debug with the Runner app as you proposed and I obtain the following errors:
audio-context-constructor.js:9 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page.
(anonymous) @ audio-context-constructor.js:9
test-audio-node-disconnect-method-support.js:3 [Deprecation] The ScriptProcessorNode is deprecated. Use AudioWorkletNode instead.
(anonymous) @ test-audio-node-disconnect-method-support.js:3
test-audio-node-disconnect-method-support.js:30 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page.
(anonymous) @ test-audio-node-disconnect-method-support.js:30
test-audio-scheduled-source-node-start-method-negative-parameters-support.js:4 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page.
re @ test-audio-scheduled-source-node-start-method-negative-parameters-support.js:4
constant-source-node-constructor.js:42 The AudioContext was not allowed to start. It must be resumed (or created) after a user gesture on the page.
start @ constant-source-node-constructor.js:42
:12002/lib/core-2021.1.4.js:1 Failed to load resource: the server responded with a status of 404 (File not found)
:12002/lib/data-2021.1.4.js:1 Failed to load resource: the server responded with a status of 404 (File not found)
:12002/lib/util-2021.1.4.js:1 Failed to load resource: the server responded with a status of 404 (File not found)
:12002/lib/visual-2021.1.4.js:1 Failed to load resource: the server responded with a status of 404 (File not found)
:12002/lib/sound-2021.1.4.js:1 Failed to load resource: the server responded with a status of 404 (File not found)
:12002/favicon.ico:1 Failed to load resource: the server responded with a status of 404 (File not found)
Seems that here again the .lib folder is missing.
J.e.m.