The error message is due to an invalid expression ("Syntax error: '-' can't go here - are you missing something before it?").

Construct 2 had some bugs where it incorrectly allowed invalid expressions. Construct 3 is more robust and verifies expressions more correctly. However it means if your C2 project relies on a C2 bug that allows an invalid expression, it won't import in to C3. You'll need to open it in C2, find an invalid expression using '-', fix it, save and then it should import to C3.

it's clear, but how? :D

Old versions where listed gives error like that on start:

Error report information

Type: unhandled rejection

Reason: Error: invalid parameter type 'boolean' Error: invalid parameter type 'boolean' at new window.ǃhOg (https://editor.construct.net/r100/main.js:63:324783) at Function.ǃg.ǃr (https://editor.construct.net/r100/main.js:2:140322) at window.ǃhGf.ǃhOK (https://editor.construct.net/r100/main.js:63:328884) at new window.ǃhO_ (https://editor.construct.net/r100/main.js:63:328474) at new window.ǃhGH (https://editor.construct.net/r100/main.js:63:330234) at new window.ǃhGf (https://editor.construct.net/r100/main.js:63:335110) at Function.ǃg.ǃr (https://editor.construct.net/r100/main.js:2:140322) at window.ǃhEn.ǃhEo (https://editor.construct.net/r100/main.js:63:336769) at window.ǃhPz.ǃhrp (https://editor.construct.net/r100/main.js:63:508039) at g.ǃFm (https://editor.construct.net/r100/main.js:74:28511)

Stack: Error: invalid parameter type 'boolean' at new window.ǃhOg (https://editor.construct.net/r100/main.js:63:324783) at Function.ǃg.ǃr (https://editor.construct.net/r100/main.js:2:140322) at window.ǃhGf.ǃhOK (https://editor.construct.net/r100/main.js:63:328884) at new window.ǃhO_ (https://editor.construct.net/r100/main.js:63:328474) at new window.ǃhGH (https://editor.construct.net/r100/main.js:63:330234) at new window.ǃhGf (https://editor.construct.net/r100/main.js:63:335110) at Function.ǃg.ǃr (https://editor.construct.net/r100/main.js:2:140322) at window.ǃhEn.ǃhEo (https://editor.construct.net/r100/main.js:63:336769) at window.ǃhPz.ǃhrp (https://editor.construct.net/r100/main.js:63:508039) at g.ǃFm (https://editor.construct.net/r100/main.js:74:28511)

Construct 3 version: r100

URL: editor.construct.net/r100

Date: Mon Jul 19 2021 23:43:13 GMT+0700 (GMT+07:00)

Uptime: 4.8 s

Platform information

Browser: Chrome

Browser version: 91.0.4472.164

Browser engine: Blink

Browser architecture: 64-bit

Context: browser

Operating system: Windows

Operating system version: 10

Operating system architecture: 64-bit

Device type: desktop

Device pixel ratio: 1

Logical CPU cores: 4

Approx. device memory: 8 GB

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.164 Safari/537.36

C3 release: r100 (beta)

Language setting: en-US

WebGL information

Version string: WebGL 2.0 (OpenGL ES 3.0 Chromium)

Numeric version: 2

Supports NPOT textures: yes

Supports GPU profiling: yes

Vendor: Google Inc. (Intel)

Renderer: ANGLE (Intel, Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0, D3D11-10.18.10.4358)

Major performance caveat: no

Maximum texture size: 16384

Point size range: 1 to 1024

Extensions: EXT_color_buffer_float, EXT_color_buffer_half_float, EXT_disjoint_timer_query_webgl2, EXT_float_blend, EXT_texture_compression_bptc, EXT_texture_compression_rgtc, EXT_texture_filter_anisotropic, EXT_texture_norm16, KHR_parallel_shader_compile, OES_texture_float_linear, WEBGL_compressed_texture_s3tc, WEBGL_compressed_texture_s3tc_srgb, WEBGL_debug_renderer_info, WEBGL_debug_shaders, WEBGL_lose_context, WEBGL_multi_draw, OVR_multiview2

V171 gives same error:

Error report information

Type: unhandled rejection

Reason: Syntax error: '-' can't go here - are you missing something before it?

Construct 3 version: r171

URL: editor.construct.net/r171

Date: Mon Jul 19 2021 19:12:17 GMT+0700 (GMT+07:00)

Uptime: 45.7 s

Platform information

Browser: Chrome

Browser version: 91.0.4472.124

Browser engine: Chromium

Browser architecture: 64-bit

Context: browser

Operating system: Windows

Operating system version: 10

Operating system architecture: 64-bit

Device type: desktop

Device pixel ratio: 1

Logical CPU cores: 4

Approx. device memory: 8 GB

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

C3 release: r171 (stable)

Language setting: en-US

WebGL information

Version string: WebGL 2.0 (OpenGL ES 3.0 Chromium)

Numeric version: 2

Supports NPOT textures: yes

Supports GPU profiling: yes

Supports highp precision: yes

Vendor: Google Inc. (Intel)

Renderer: ANGLE (Intel, Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0, D3D11-10.18.10.4358)

Major performance caveat: no

Maximum texture size: 16384

Point size range: 1 to 1024

Extensions: EXT_color_buffer_float, EXT_color_buffer_half_float, EXT_disjoint_timer_query_webgl2, EXT_float_blend, EXT_texture_compression_bptc, EXT_texture_compression_rgtc, EXT_texture_filter_anisotropic, EXT_texture_norm16, KHR_parallel_shader_compile, OES_texture_float_linear, WEBGL_compressed_texture_s3tc, WEBGL_compressed_texture_s3tc_srgb, WEBGL_debug_renderer_info, WEBGL_debug_shaders, WEBGL_lose_context, WEBGL_multi_draw, OVR_multiview2

v90 and 100 are not working now :(

Yes, it's working with C2. Where can i download versions you term? Thank you :)

And one more question:

C3 project crashes on export with this error:

/str/c3runtime.js:2733:349: ERROR - [JSC_UNDEFINED_VARIABLE] variable GetBaseAnimationFrame is undeclared

2733| tempQuad.getTrx())/2);tempQuad.setTly((tempQuad.getTly()+tempQuad.getTry())/2)}renderer.Quad3D2(tlx,tly,tlz,trx,try_,trz,brx,bry,brz,blx,bly,blz,tempQuad)}else renderer.Quad3D(tlx,tly,tlz,trx,try_,trz,brx,bry,brz,blx,bly,blz,rcTex)}GetImagePointCount(){return this.GetBaseAnimationFrame().GetImagePointCount()}GetImagePoint(nameOrIndex){const frame=GetBaseAnimationFrame();const wi=this.GetWorldInfo();let ip=null;if(typeof nameOrIndex==="string")ip=frame.GetImagePointByName(nameOrIndex);else if(typeof nameOrIndex===

^^^^^^^^^^^^^^^^^^^^^

1 error(s), 0 warning(s)

Don't any side addons are installed

Error report information

Type: unhandled rejection

Reason: Syntax error: '-' can't go here - are you missing something before it?

Construct 3 version: r251.2

URL: editor.construct.net

Date: Sun Jul 18 2021 20:16:55 GMT+0700 (GMT+07:00)

Uptime: 32.2 s

Platform information

Browser: Chrome

Browser version: 91.0.4472.124

Browser engine: Chromium

Context: webapp

Operating system: Windows

Operating system version: 10

Device type: desktop

Device pixel ratio: 1

Logical CPU cores: 4

Approx. device memory: 8 GB

User agent: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/91.0.4472.124 Safari/537.36

C3 release: r251.2 (stable)

Language setting: en-US

WebGL information

Version string: WebGL 2.0 (OpenGL ES 3.0 Chromium)

Numeric version: 2

Supports NPOT textures: yes

Supports GPU profiling: yes

Supports highp precision: yes

Vendor: Google Inc. (Intel)

Renderer: ANGLE (Intel, Intel(R) HD Graphics 4000 Direct3D11 vs_5_0 ps_5_0, D3D11-10.18.10.4358)

Major performance caveat: no

Maximum texture size: 16384

Point size range: 1 to 1024

Extensions: EXT_color_buffer_float, EXT_color_buffer_half_float, EXT_disjoint_timer_query_webgl2, EXT_float_blend, EXT_texture_compression_bptc, EXT_texture_compression_rgtc, EXT_texture_filter_anisotropic, EXT_texture_norm16, KHR_parallel_shader_compile, OES_texture_float_linear, WEBGL_compressed_texture_s3tc, WEBGL_compressed_texture_s3tc_srgb, WEBGL_debug_renderer_info, WEBGL_debug_shaders, WEBGL_lose_context, WEBGL_multi_draw, OVR_multiview2