1. W21-21: Cannot perform this operation, multiple points selected
2. W21-32: Cannot split segments, maximum number of segments reached
3. W21-34: This function can only be applied on junction of two segments
4. W21-38: This function cannot be applied at the current point. 
5. W31-86: No allowable stresses are available for the selected material in the material library 
6. W36-14: Support will be hidden since all gaps >  Gap Scale Factor x Pipe O.D.
7. W41-27: Parameters are outside the applicable range
8. W45-85 Gasket Dimension are not available for the selected gasket material type
9. W72-1: AutoPIPE Error Handling
10. W79-85: 0 Stiffness in direction of imposed harmonic load. at XXX 
11. W97-99: No analyzed pressure cases present. Only axial GR stress is added
12. W97-213: Corroded thickness is required for sustained stress in B31.3
13. W165-5:  The tee at point xxx does not meet the conditions to... 
14. W177-22: Time history duration is less than first period
15. W214-1: The combination data file (*.CMB) you are about to open was created in a different version.
16. W507-14: Modal analysis cannot be performed. Number of modes is zero
17. W507-3: System contains undesigned hangers 
18. W507-40: No temperature case found for non-linear hydrotest. 
19. W507-43: No pressure case found for non-linear hydrotest 
20. W511-67: Hydrotest load cases have been removed from existing analysis sets and new hydrotest loadset has been added.
21. W726-2:  Gap orientation has changed for guide at point XXX
22. W726-6:  Near zero length element at point XXX
23. W726-7:  Pipe diameter change without a reducer at point XXX
24. W726-8:  Kink in straight run of 90.0 deg at point XXX
25. W726-8:  Kink in straight run of 179.9 deg at point XXX
26. W726-9: A Guide or Line Stop should not be inserted at following kink point(s)
27. W726-10: User SIF required at junction at following point(s)
28. W726-12: Following Segment(s) not connected to other segments and has no anchors
29. W726-14: No anchors in current system
30. W726-17: Soil option not available 
31. W726-34: Inconsistent coordinates were reset at following point(s)
32. W726-37: Expansion at (load case) is outside of temperature range at point XXX for material YYYY
33. W726-38: Allowable at ambient is outside of temperature range at point XXX for material YYYY
34. W726-39: Allowable at XX is outside of temperature range at point XXX for material XXXX
35. W726-55: Creep data for (xx) is above temperature range. Zero allowable used at point (xxx) for material (yyyy)
36. W726-57: Temp. for XX  is above max. temp of XXX for derating factor at point XX for material XXX                      
37. W726-93: Zero weight flange found at point XXX
38. W726-94: Zero weight valve found at point XXX
39. W726-110: Not all gaps are non-zero for following support(s)
40. W726-116: Support will be hidden since all gaps > gap scale factor*Pipe O.D.at following support
41. W726-170: The tee at point A04  has only two legs defined which may not meet the conditions to apply the equations for SIF and other stress indices.
42. W726-195: Support D10  1-Zero length from 'supported' to 'connected' point
43. W726-205: SIF and flexibility factors have not been validated for D/t > 100 
44. W727-2: Temperature is outside the range specified the code for Expansion
45. W727-3: Temperature is outside the range specified by the code for allowable
46. W731-6: Tees are not permitted in HDPE pipe system as per CC N-755-1
47. W754-1: Sweep angle is 180 degrees
48. W774-47 One or more combinations are set to none
49. W801-14: No frequency below cutoff value
50. W801-85: 0 Stiffness in direction of imposed displacement hist. at XXXX
51. W801-58: Smallest timestep for xxxx .TIH file = ....
52. W801-121: V-stop liftoff(s) have occurred under operating
53. W831-11: Seismic level includes cases not analyzed
54. W961-12: System near capacity, please save
55. W2014-35: Previous "to" must be the same as current "from" point
56. W2018-11, W2018-12, W2018-16: Not authorized for ???? edition, AutoPIPE reverts to DEMO mode 
57. W2143-1 Following inconsistent data found in Analysis Set 1 Number of load cases does not match
58. W2143-7: The joint information of User SIF or flange will be ignored at following point(s) 
59. W2143-11:  Pipe thickness or diameter changes without any transition weld at following point(s)
60. W2143-29:Response spectrum case R1 has support group 2 that is no longer defined in model
61. W2143-37: Extremely high value for Displacement tolerance > 1000 detected in loadset
62. W2143-41: Undefined case referenced for concentrated force found at point..
63. W2143-45: A Yield(Sy) value of less than or equal to 1.00000 psi is detected on some points
64. W2143-76: Friction scale factor is zero. Friction at all supports will be ignored for following analysis set
65. W2143-108: Stress Range factor > 1 is not allowed for non-ferrous materials. At Pipe(s)
66. W2143-121: Sc > 20 ksi (138 MPa). In calculation Sc will be set to 20 ksi (138 MPa) for expansion allow for pipe(s)
67. W2143-123: Sh > 20 ksi (138 MPa). In calculation Sh will be set to 20 ksi (138 MPa) for expansion allow at following point(s)
68. W2164-12: System contains Gaps/Friction/Soil data. Please enable non-linear option in the following Analysis sets
69. W2164-30: Outside diameter does not match with soil properties at following point(s)
70. W2164-41:Following inconsistencies are found for rotating equipment xx [yy ,zz ] point included does not have anchor/reference point defined
71. W2164-58: Soil ID: xxx ,Bedding const. K cannot be zero. Reset to 0.1
72. W2164-63: For following bend point(s) "the maximum dimension ratio (DR) permitted for mitered elbow segments by CC N-755-1 is 13.5"
73. W2164-66: For following bend point(s) "the minimum wall thickness of the mitered elbow
74. W2164-78: D/t ratio for the following pipe ID(s) is less than 20
75. W2164-93: The value of "Fluid Density Factor" is zero in following analysis sets
76. W2164-94: The validity of SIF data is only demonstrated for a Do/tn ratio less than or equal to 100
77. W2164-104: Yield values are zero for the selected material
78. W2164-106: The following pipe ID's are using a depreciated fatigue curve, limited to 1E6 cycles
79. W2164-124: B31 App J: Stress intensification factors
80. W2164-125:B31 App J: Crotch radius is less than or equal to zero for the tee(s)
81. W2164-126:B31 App J: Crotch thickness is less than or equal to zero for the tee(s)
82. W2164-135:B31 App J: The ratio of crotch thickness to run thickness must be greater than 1.1 for the tee(s)
83. W2164-145:B31 App J: SIF values for the tee(s) below are not valid
84. W2164-147:B31 App J: SIF values for the tee(s) below are not valid, as the ratio of branch mean diameter to run mean diameter is greater than 0.6
85. W2164-153: B31 App J - The ratio r2/D2 is smaller than or equal to 0.08 for the reducer(s)
86. W2164-155: B31 App J - The ratio T1/T2 is smaller than or equal to 1.00 for the reducer(s)… warning message occurred in AutoPIPE, why?
87. W2164-156: B31 App J - The ratio T1/T2 is greater than or equal to 2.12 for the reducer(s)… warning message occurred in AutoPIPE, why?
88. W2164-159: The value of "Stiffness" or "Spring Rate" is zero
89. W2164-173:Thickness is out of range of library limits for following pipes
90. W2164-178:Tee header and branch data was corrupt ... 
91. W2164-181: B31 App J: The following tee(s) contain a primary or secondary node on the branch leg
92. W2164-192:B31 App J: Collinearity detected on the following tee(s) and will be analyzed as a non-B31J component
93. W2164-194:B31 App J: The branch pipe axis is not within 5 degrees normal to the axis of the run pipe for the following tees
94. W2164-198:Tee header and branch missing information has been updated on the following point(s):
95. W2164-204: The following flange(s) do not consider corrosion
96. W2182-3: More than one flanges at valve/reducer/flexible joint end at point xxxx
97. W2182-4: Valve/reducer/flex joint should have flanges at both ends
98. W2182-26: Pressure rating on mating flange to a valve is not the same at point xxxx
99. W2182-28: Flanged valve/flexible joint should have mating flange
100. W2261-3: Invalid Pipe ID in "Virtual Anchor" data for following Soil Id(s)
101.  W2261-4: Invalid Point in "Virtual Anchor" data for following Soil Id(s)
102. W2261-5: The load case selected in "Virtual Anchor" data for following Soil Id(s), does not exist in model
103. W2261-9: All stiffness values are zero for the following bilinear support(s).
104. W2261-45: B31 App J: Crotch radius is less than or equal to zero for the tee(s) below, which may increase SIFs and flexibility factors unexpectedly. 
105. W2261-47: B31 App J: Crotch thickness is less than or equal to zero for the tee(s) below, which may increase SIFs and flexibility factors unexpectedly.
106. W2261-64: B31 App J: The following tees have a ratio of crotch thickness to run thickness less than 1.1. Set the tee type of these tee(s) to 'Other'
107. W2261-81: B31 App J: The reducer ratio r2/D2 should be greater than XXXX. The program will continue to use the provided geometry.
108. W2261-85: B31 App J: The reducer ratio T1/T2 should be no less than 1. The program will continue to use the provided geometry.  
109. W2261-91: B31 App J: The following tees contain a primary node on the branch leg within the outer diameter of the header on the following tee(s). Tee flexibility (k) in all planes will be assumed 1.0
110. E2261-106:B31 App J: Flexibility and SIF calculations are limited to non-soil tee points
111. W2261-117: B31 App J: Header diameter or thickness is not maintained for at least two header pipe mean diameters, on one/both side(s) of the branch centerline, for the tee(s)

Also See:

Warnings, Errors, Crashed, Confirm Messages in AutoPIPE