This form is for three.js bug reports and feature requests only.
This is NOT a help site. Do not ask help questions here.
If you need help, please use stackoverflow.
Describe the bug or feature request in detail.
A code snippet, screenshot, and small-test help us understand.
You can edit for small-test.
http://jsfiddle.net/akmcv7Lh/ (current revision)
http://jsfiddle.net/hw9rcLL8/ (dev)
Have you imported CanvasRenderer from /examples/js/renderers/CanvasRenderer.js?
see https://github.com/mrdoob/three.js/blob/master/examples/canvas_lines.html#L23-L24 as an example.
I have imported it and it's still showing errors. The link provided is not available now.
CanvasRenderer and all related examples have been removed.
Most helpful comment
Have you imported
CanvasRendererfrom/examples/js/renderers/CanvasRenderer.js?see https://github.com/mrdoob/three.js/blob/master/examples/canvas_lines.html#L23-L24 as an example.