findNearestPoly failing

[Mark Bentley]

I'm new to Recast/Detour and I've created a hello world type application to understand how it all works.
https://github.com/uk-mark-bentley/recast-hello-world

The app has a single class (mesh) which on initialisation creates a simple dtNavMesh from a height-field with 2 squares rasterized to create a walkable area in the middle.

The mesh class has a FindPath method which has the intention of finding a path through the walkable area based on a start and end position. If the start and end positions are outside of the polys that make up the walkable area it attempts to use findNearestPoly to get the reference of the nearest poly and a start position on the poly. Currently this fails and I'm stumped as to why.

If I manually give the findPath and findStraightPath methods polyRefs and a start position in the mesh these work

• Comment out the following lines in mesh.cpp to manually set the values: 75, 76, 160, 161
• Since all three methods use the same dtQueryFilter my assumption is that the filter is OK

I'm wondering if I'm missing something fundamental in how the tile is set up. Any help appreciated, I've reached the end of my understanding.

[Mark Bentley]

This is the output from my app:

origin: 0, 0 mesh_top_right: 100, 100 mesh_bottom_left: 0, 0 Height: 50 Bmin: 0, 0, 0 Bmax: 100, 100, 100 Cell size: 2 Cell height: 1 Heightfield details: Width: 50 Height: 50 Spans: Span at (5, 5) area: 63 Span at (5, 6) area: 63 Span at (5, 7) area: 63 Span at (5, 8) area: 63 Span at (5, 9) area: 63 Span at (5, 10) area: 63 Span at (5, 11) area: 63 Span at (5, 12) area: 63 Span at (5, 13) area: 63 Span at (5, 14) area: 63 Span at (6, 5) area: 63 Span at (6, 6) area: 63 Span at (6, 7) area: 63 Span at (6, 8) area: 63 Span at (6, 9) area: 63 Span at (6, 10) area: 63 Span at (6, 11) area: 63 Span at (6, 12) area: 63 Span at (6, 13) area: 63 Span at (6, 14) area: 63 Span at (7, 5) area: 63 Span at (7, 6) area: 63 Span at (7, 7) area: 63 Span at (7, 8) area: 63 Span at (7, 9) area: 63 Span at (7, 10) area: 63 Span at (7, 11) area: 63 Span at (7, 12) area: 63 Span at (7, 13) area: 63 Span at (7, 14) area: 63 Span at (8, 5) area: 63 Span at (8, 6) area: 63 Span at (8, 7) area: 63 Span at (8, 8) area: 63 Span at (8, 9) area: 63 Span at (8, 10) area: 63 Span at (8, 11) area: 63 Span at (8, 12) area: 63 Span at (8, 13) area: 63 Span at (8, 14) area: 63 Span at (9, 5) area: 63 Span at (9, 6) area: 63 Span at (9, 7) area: 63 Span at (9, 8) area: 63 Span at (9, 9) area: 63 Span at (9, 10) area: 63 Span at (9, 11) area: 63 Span at (9, 12) area: 63 Span at (9, 13) area: 63 Span at (9, 14) area: 63 Span at (10, 5) area: 63 Span at (10, 6) area: 63 Span at (10, 7) area: 63 Span at (10, 8) area: 63 Span at (10, 9) area: 63 Span at (10, 10) area: 63 Span at (10, 11) area: 63 Span at (10, 12) area: 63 Span at (10, 13) area: 63 Span at (10, 14) area: 63 Span at (11, 5) area: 63 Span at (11, 6) area: 63 Span at (11, 7) area: 63 Span at (11, 8) area: 63 Span at (11, 9) area: 63 Span at (11, 10) area: 63 Span at (11, 11) area: 63 Span at (11, 12) area: 63 Span at (11, 13) area: 63 Span at (11, 14) area: 63 Span at (12, 5) area: 63 Span at (12, 6) area: 63 Span at (12, 7) area: 63 Span at (12, 8) area: 63 Span at (12, 9) area: 63 Span at (12, 10) area: 63 Span at (12, 11) area: 63 Span at (12, 12) area: 63 Span at (12, 13) area: 63 Span at (12, 14) area: 63 Span at (13, 5) area: 63 Span at (13, 6) area: 63 Span at (13, 7) area: 63 Span at (13, 8) area: 63 Span at (13, 9) area: 63 Span at (13, 10) area: 63 Span at (13, 11) area: 63 Span at (13, 12) area: 63 Span at (13, 13) area: 63 Span at (13, 14) area: 63 Span at (14, 5) area: 63 Span at (14, 6) area: 63 Span at (14, 7) area: 63 Span at (14, 8) area: 63 Span at (14, 9) area: 63 Span at (14, 10) area: 63 Span at (14, 11) area: 63 Span at (14, 12) area: 63 Span at (14, 13) area: 63 Span at (14, 14) area: 63 Span at (15, 10) area: 63 Span at (15, 11) area: 63 Span at (15, 12) area: 63 Span at (15, 13) area: 63 Span at (15, 14) area: 63 Span at (15, 15) area: 63 Span at (15, 16) area: 63 Span at (15, 17) area: 63 Span at (15, 18) area: 63 Span at (15, 19) area: 63 Span at (16, 10) area: 63 Span at (16, 11) area: 63 Span at (16, 12) area: 63 Span at (16, 13) area: 63 Span at (16, 14) area: 63 Span at (16, 15) area: 63 Span at (16, 16) area: 63 Span at (16, 17) area: 63 Span at (16, 18) area: 63 Span at (16, 19) area: 63 Span at (17, 10) area: 63 Span at (17, 11) area: 63 Span at (17, 12) area: 63 Span at (17, 13) area: 63 Span at (17, 14) area: 63 Span at (17, 15) area: 63 Span at (17, 16) area: 63 Span at (17, 17) area: 63 Span at (17, 18) area: 63 Span at (17, 19) area: 63 Span at (18, 10) area: 63 Span at (18, 11) area: 63 Span at (18, 12) area: 63 Span at (18, 13) area: 63 Span at (18, 14) area: 63 Span at (18, 15) area: 63 Span at (18, 16) area: 63 Span at (18, 17) area: 63 Span at (18, 18) area: 63 Span at (18, 19) area: 63 Span at (19, 10) area: 63 Span at (19, 11) area: 63 Span at (19, 12) area: 63 Span at (19, 13) area: 63 Span at (19, 14) area: 63 Span at (19, 15) area: 63 Span at (19, 16) area: 63 Span at (19, 17) area: 63 Span at (19, 18) area: 63 Span at (19, 19) area: 63 Span at (20, 10) area: 63 Span at (20, 11) area: 63 Span at (20, 12) area: 63 Span at (20, 13) area: 63 Span at (20, 14) area: 63 Span at (20, 15) area: 63 Span at (20, 16) area: 63 Span at (20, 17) area: 63 Span at (20, 18) area: 63 Span at (20, 19) area: 63 Span at (21, 10) area: 63 Span at (21, 11) area: 63 Span at (21, 12) area: 63 Span at (21, 13) area: 63 Span at (21, 14) area: 63 Span at (21, 15) area: 63 Span at (21, 16) area: 63 Span at (21, 17) area: 63 Span at (21, 18) area: 63 Span at (21, 19) area: 63 Span at (22, 10) area: 63 Span at (22, 11) area: 63 Span at (22, 12) area: 63 Span at (22, 13) area: 63 Span at (22, 14) area: 63 Span at (22, 15) area: 63 Span at (22, 16) area: 63 Span at (22, 17) area: 63 Span at (22, 18) area: 63 Span at (22, 19) area: 63 Span at (23, 10) area: 63 Span at (23, 11) area: 63 Span at (23, 12) area: 63 Span at (23, 13) area: 63 Span at (23, 14) area: 63 Span at (23, 15) area: 63 Span at (23, 16) area: 63 Span at (23, 17) area: 63 Span at (23, 18) area: 63 Span at (23, 19) area: 63 Span at (24, 10) area: 63 Span at (24, 11) area: 63 Span at (24, 12) area: 63 Span at (24, 13) area: 63 Span at (24, 14) area: 63 Span at (24, 15) area: 63 Span at (24, 16) area: 63 Span at (24, 17) area: 63 Span at (24, 18) area: 63 Span at (24, 19) area: 63 Span:0 area: 63 Span:1 area: 63 Span:2 area: 63 Span:3 area: 63 Span:4 area: 63 Span:5 area: 63 Span:6 area: 63 Span:7 area: 63 Span:8 area: 63 Span:9 area: 63 Span:10 area: 63 Span:11 area: 63 Span:12 area: 63 Span:13 area: 63 Span:14 area: 63 Span:15 area: 63 Span:16 area: 63 Span:17 area: 63 Span:18 area: 63 Span:19 area: 63 Span:20 area: 63 Span:21 area: 63 Span:22 area: 63 Span:23 area: 63 Span:24 area: 63 Span:25 area: 63 Span:26 area: 63 Span:27 area: 63 Span:28 area: 63 Span:29 area: 63 Span:30 area: 63 Span:31 area: 63 Span:32 area: 63 Span:33 area: 63 Span:34 area: 63 Span:35 area: 63 Span:36 area: 63 Span:37 area: 63 Span:38 area: 63 Span:39 area: 63 Span:40 area: 63 Span:41 area: 63 Span:42 area: 63 Span:43 area: 63 Span:44 area: 63 Span:45 area: 63 Span:46 area: 63 Span:47 area: 63 Span:48 area: 63 Span:49 area: 63 Span:50 area: 63 Span:51 area: 63 Span:52 area: 63 Span:53 area: 63 Span:54 area: 63 Span:55 area: 63 Span:56 area: 63 Span:57 area: 63 Span:58 area: 63 Span:59 area: 63 Span:60 area: 63 Span:61 area: 63 Span:62 area: 63 Span:63 area: 63 Span:64 area: 63 Span:65 area: 63 Span:66 area: 63 Span:67 area: 63 Span:68 area: 63 Span:69 area: 63 Span:70 area: 63 Span:71 area: 63 Span:72 area: 63 Span:73 area: 63 Span:74 area: 63 Span:75 area: 63 Span:76 area: 63 Span:77 area: 63 Span:78 area: 63 Span:79 area: 63 Span:80 area: 63 Span:81 area: 63 Span:82 area: 63 Span:83 area: 63 Span:84 area: 63 Span:85 area: 63 Span:86 area: 63 Span:87 area: 63 Span:88 area: 63 Span:89 area: 63 Span:90 area: 63 Span:91 area: 63 Span:92 area: 63 Span:93 area: 63 Span:94 area: 63 Span:95 area: 63 Span:96 area: 63 Span:97 area: 63 Span:98 area: 63 Span:99 area: 63 Span:100 area: 63 Span:101 area: 63 Span:102 area: 63 Span:103 area: 63 Span:104 area: 63 Span:105 area: 63 Span:106 area: 63 Span:107 area: 63 Span:108 area: 63 Span:109 area: 63 Span:110 area: 63 Span:111 area: 63 Span:112 area: 63 Span:113 area: 63 Span:114 area: 63 Span:115 area: 63 Span:116 area: 63 Span:117 area: 63 Span:118 area: 63 Span:119 area: 63 Span:120 area: 63 Span:121 area: 63 Span:122 area: 63 Span:123 area: 63 Span:124 area: 63 Span:125 area: 63 Span:126 area: 63 Span:127 area: 63 Span:128 area: 63 Span:129 area: 63 Span:130 area: 63 Span:131 area: 63 Span:132 area: 63 Span:133 area: 63 Span:134 area: 63 Span:135 area: 63 Span:136 area: 63 Span:137 area: 63 Span:138 area: 63 Span:139 area: 63 Span:140 area: 63 Span:141 area: 63 Span:142 area: 63 Span:143 area: 63 Span:144 area: 63 Span:145 area: 63 Span:146 area: 63 Span:147 area: 63 Span:148 area: 63 Span:149 area: 63 Span:150 area: 63 Span:151 area: 63 Span:152 area: 63 Span:153 area: 63 Span:154 area: 63 Span:155 area: 63 Span:156 area: 63 Span:157 area: 63 Span:158 area: 63 Span:159 area: 63 Span:160 area: 63 Span:161 area: 63 Span:162 area: 63 Span:163 area: 63 Span:164 area: 63 Span:165 area: 63 Span:166 area: 63 Span:167 area: 63 Span:168 area: 63 Span:169 area: 63 Span:170 area: 63 Span:171 area: 63 Span:172 area: 63 Span:173 area: 63 Span:174 area: 63 Span:175 area: 63 Span:176 area: 63 Span:177 area: 63 Span:178 area: 63 Span:179 area: 63 Span:180 area: 63 Span:181 area: 63 Span:182 area: 63 Span:183 area: 63 Span:184 area: 63 Span:185 area: 63 Span:186 area: 63 Span:187 area: 63 Span:188 area: 63 Span:189 area: 63 Span:190 area: 63 Span:191 area: 63 Span:192 area: 63 Span:193 area: 63 Span:194 area: 63 Span:195 area: 63 Span:196 area: 63 Span:197 area: 63 Span:198 area: 63 Span:199 area: 63 Compact heightfield details: Width: 50 Height: 50 Span count: 200 Walkable height: 0 Walkable climb: 10 Border size: 0 Max distance: 8 Max regions: 3 Min x: 0 Min y: 0 Min z: 0 Max x: 100 Max y: 100 Max z: 100 Cell size: 2 Cell height: 1 Grid: -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -----XXXXXXXXXX----------------------------------- -----XXXXXXXXXX----------------------------------- -----XXXXXXXXXX----------------------------------- -----XXXXXXXXXX----------------------------------- -----XXXXXXXXXX----------------------------------- -----XXXXXXXXXXXXXXXXXXXX------------------------- -----XXXXXXXXXXXXXXXXXXXX------------------------- -----XXXXXXXXXXXXXXXXXXXX------------------------- -----XXXXXXXXXXXXXXXXXXXX------------------------- -----XXXXXXXXXXXXXXXXXXXX------------------------- ---------------XXXXXXXXXX------------------------- ---------------XXXXXXXXXX------------------------- ---------------XXXXXXXXXX------------------------- ---------------XXXXXXXXXX------------------------- ---------------XXXXXXXXXX------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- -------------------------------------------------- Contour set details: - Cell size (m):2 - Bounding box min (m): 0, 0, 0 - Number of contours: 2 - - Contour 0 area: 63 - - - Number of verts:42 - - - - Vert 0: 5, 1, 6 > [10, 12] - - - - Vert 1: 5, 1, 7 > [10, 14] - - - - Vert 2: 5, 1, 8 > [10, 16] - - - - Vert 3: 5, 1, 9 > [10, 18] - - - - Vert 4: 5, 1, 10 > [10, 20] - - - - Vert 5: 5, 1, 11 > [10, 22] - - - - Vert 6: 5, 1, 12 > [10, 24] - - - - Vert 7: 5, 1, 13 > [10, 26] - - - - Vert 8: 5, 1, 14 > [10, 28] - - - - Vert 9: 5, 1, 15 > [10, 30] - - - - Vert 10: 6, 1, 15 > [12, 30] - - - - Vert 11: 7, 1, 15 > [14, 30] - - - - Vert 12: 8, 1, 15 > [16, 30] - - - - Vert 13: 9, 1, 15 > [18, 30] - - - - Vert 14: 10, 1, 15 > [20, 30] - - - - Vert 15: 11, 1, 15 > [22, 30] - - - - Vert 16: 12, 1, 15 > [24, 30] - - - - Vert 17: 13, 1, 15 > [26, 30] - - - - Vert 18: 14, 1, 15 > [28, 30] - - - - Vert 19: 14, 1, 14 > [28, 28] - - - - Vert 20: 15, 1, 14 > [30, 28] - - - - Vert 21: 15, 1, 13 > [30, 26] - - - - Vert 22: 15, 1, 12 > [30, 24] - - - - Vert 23: 16, 1, 12 > [32, 24] - - - - Vert 24: 16, 1, 11 > [32, 22] - - - - Vert 25: 16, 1, 10 > [32, 20] - - - - Vert 26: 15, 1, 10 > [30, 20] - - - - Vert 27: 15, 1, 9 > [30, 18] - - - - Vert 28: 15, 1, 8 > [30, 16] - - - - Vert 29: 15, 1, 7 > [30, 14] - - - - Vert 30: 15, 1, 6 > [30, 12] - - - - Vert 31: 15, 1, 5 > [30, 10] - - - - Vert 32: 14, 1, 5 > [28, 10] - - - - Vert 33: 13, 1, 5 > [26, 10] - - - - Vert 34: 12, 1, 5 > [24, 10] - - - - Vert 35: 11, 1, 5 > [22, 10] - - - - Vert 36: 10, 1, 5 > [20, 10] - - - - Vert 37: 9, 1, 5 > [18, 10] - - - - Vert 38: 8, 1, 5 > [16, 10] - - - - Vert 39: 7, 1, 5 > [14, 10] - - - - Vert 40: 6, 1, 5 > [12, 10] - - - - Vert 41: 5, 1, 5 > [10, 10] - - Contour 1 area: 63 - - - Number of verts:42 - - - - Vert 0: 16, 1, 11 > [32, 22] - - - - Vert 1: 16, 1, 12 > [32, 24] - - - - Vert 2: 15, 1, 12 > [30, 24] - - - - Vert 3: 15, 1, 13 > [30, 26] - - - - Vert 4: 15, 1, 14 > [30, 28] - - - - Vert 5: 14, 1, 14 > [28, 28] - - - - Vert 6: 14, 1, 15 > [28, 30] - - - - Vert 7: 15, 1, 15 > [30, 30] - - - - Vert 8: 15, 1, 16 > [30, 32] - - - - Vert 9: 15, 1, 17 > [30, 34] - - - - Vert 10: 15, 1, 18 > [30, 36] - - - - Vert 11: 15, 1, 19 > [30, 38] - - - - Vert 12: 15, 1, 20 > [30, 40] - - - - Vert 13: 16, 1, 20 > [32, 40] - - - - Vert 14: 17, 1, 20 > [34, 40] - - - - Vert 15: 18, 1, 20 > [36, 40] - - - - Vert 16: 19, 1, 20 > [38, 40] - - - - Vert 17: 20, 1, 20 > [40, 40] - - - - Vert 18: 21, 1, 20 > [42, 40] - - - - Vert 19: 22, 1, 20 > [44, 40] - - - - Vert 20: 23, 1, 20 > [46, 40] - - - - Vert 21: 24, 1, 20 > [48, 40] - - - - Vert 22: 25, 1, 20 > [50, 40] - - - - Vert 23: 25, 1, 19 > [50, 38] - - - - Vert 24: 25, 1, 18 > [50, 36] - - - - Vert 25: 25, 1, 17 > [50, 34] - - - - Vert 26: 25, 1, 16 > [50, 32] - - - - Vert 27: 25, 1, 15 > [50, 30] - - - - Vert 28: 25, 1, 14 > [50, 28] - - - - Vert 29: 25, 1, 13 > [50, 26] - - - - Vert 30: 25, 1, 12 > [50, 24] - - - - Vert 31: 25, 1, 11 > [50, 22] - - - - Vert 32: 25, 1, 10 > [50, 20] - - - - Vert 33: 24, 1, 10 > [48, 20] - - - - Vert 34: 23, 1, 10 > [46, 20] - - - - Vert 35: 22, 1, 10 > [44, 20] - - - - Vert 36: 21, 1, 10 > [42, 20] - - - - Vert 37: 20, 1, 10 > [40, 20] - - - - Vert 38: 19, 1, 10 > [38, 20] - - - - Vert 39: 18, 1, 10 > [36, 20] - - - - Vert 40: 17, 1, 10 > [34, 20] - - - - Vert 41: 16, 1, 10 > [32, 20] Poly mesh: - Number of vertices: 8 - Number of polys: 4 - - Poly 0: - - - Verts: - - - Vert 0: 14, 1, 15 - - - Vert 1: 1, 15, 0 - - - Vert 2: 15, 0, 15 - - - Vert 3: 0, 15, 0 - - Flags: 0 - - Area: 63 - - Poly 1: - - - Verts: - - - Vert 0: 14, 15, 16 - - - Vert 1: 15, 16, 1 - - - Vert 2: 16, 1, 14 - - - Vert 3: 1, 14, 0 - - Flags: 0 - - Area: 63 - - Poly 2: - - - Verts: - - - Vert 0: 1, 14, 10 - - - Vert 1: 14, 10, 0 - - - Vert 2: 10, 0, 14 - - - Vert 3: 0, 14, 0 - - Flags: 0 - - Area: 63 - - Poly 3: - - - Verts: - - - Vert 0: 15, 1, 1 - - - Vert 1: 1, 1, 10 - - - Vert 2: 1, 10, 0 - - - Vert 3: 10, 0, 0 - - Flags: 0 - - Area: 63 Poly mesh detail: - Number of verts: 14 - - Vert 0: 28, 2, 30 - - Vert 1: 32, 2, 20 - - Vert 2: 30, 2, 10 - - Vert 3: 28, 2, 30 - - Vert 4: 30, 2, 10 - - Vert 5: 10, 2, 10 - - Vert 6: 10, 2, 30 - - Vert 7: 32, 2, 20 - - Vert 8: 28, 2, 30 - - Vert 9: 30, 2, 40 - - Vert 10: 50, 2, 40 - - Vert 11: 50, 2, 20 - - Vert 12: 32, 2, 20 - - Vert 13: 30, 2, 40 Tile 0 Number of polys: 4 Poly 0 Poly 0 area: 63 flag: 63 Poly 1 Poly 1 area: 63 flag: 63 Poly 2 Poly 2 area: 63 flag: 63 Poly 3 Poly 3 area: 63 flag: 63 Navmesh details: - Number of tiles: 1 - - Tile 0: - - - Number of verts: 8 - - - Number of links: 4 - - - Number of polys: 4 - - - - Poly 0: - - - - - Type: DT_POLYTYPE_GROUND - - - - - Area: 63 - - - - - Flags: 63 - - - - - Vert base: 0x7fffffffd964 - - - - - Vert count: 3 - - - - - - Vert 0[0]: 28, 2, 30 - - - - - - Vert 1[1]: 32, 2, 20 - - - - - - Vert 2[2]: 30, 2, 10 - - - - - Neighbour base: 0x7fffffffd970 - - - - Poly 1: - - - - - Type: DT_POLYTYPE_GROUND - - - - - Area: 63 - - - - - Flags: 63 - - - - - Vert base: 0x7fffffffd964 - - - - - Vert count: 4 - - - - - - Vert 0[0]: 28, 2, 30 - - - - - - Vert 1[2]: 30, 2, 10 - - - - - - Vert 2[3]: 10, 2, 10 - - - - - - Vert 3[4]: 10, 2, 30 - - - - - Neighbour base: 0x7fffffffd970 - - - - Poly 2: - - - - - Type: DT_POLYTYPE_GROUND - - - - - Area: 63 - - - - - Flags: 63 - - - - - Vert base: 0x7fffffffd964 - - - - - Vert count: 3 - - - - - - Vert 0[1]: 32, 2, 20 - - - - - - Vert 1[0]: 28, 2, 30 - - - - - - Vert 2[5]: 30, 2, 40 - - - - - Neighbour base: 0x7fffffffd970 - - - - Poly 3: - - - - - Type: DT_POLYTYPE_GROUND - - - - - Area: 63 - - - - - Flags: 63 - - - - - Vert base: 0x7fffffffd964 - - - - - Vert count: 4 - - - - - - Vert 0[6]: 50, 2, 40 - - - - - - Vert 1[7]: 50, 2, 20 - - - - - - Vert 2[1]: 32, 2, 20 - - - - - - Vert 3[5]: 30, 2, 40 - - - - - Neighbour base: 0x7fffffffd970 Mesh Details: Filter: Include flags: 65535 Exclude flags: 0 Area cost: 1 Area cost: 1 Area cost: 1 Area cost: 1 Area cost: 1 Area cost: 1 Area cost: 1 Failed to find start poly StartRef: 0 Start position: 15, 0, 15 Start position on mesh: -1.02853e+34, 4.59163e-41, -9.91625e+33 Failed to find end poly End position: 45, 1, 25 End position on mesh: 4.59163e-41, 1.12856e+27, 7.71471e-33 Failed to find path Invalid param Path length: 0