← Back to Stata Index
Errors Pillar
High-frequency Stata error diagnosis and prevention checklists.
22 guides in this category
Start Here
Step 1
destring and real() in Stata: Convert String Numbers Safely
Fix destring stata in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 2
Stata Error "string variables not allowed": Causes and Fixes
Fix string variable not allowed in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 3
Stata type mismatch r(109): A Diagnostic Workflow
Fix type mismatch r(109) in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 4
Stata variable not found r(111): Why It Happens and Prevention
Fix variable not found r(111) in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 5
Stata no observations r(2000): Filters, Merges, and Missingness
Fix no observations r(2000) in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 6
Stata "command not found": Path, Version, and Package Diagnosis
Fix command not found stata in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 7
Stata r(601) file not found: Paths, Quotes, and Project Hygiene
Fix r(601) file not found in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Step 8
Stata r(198) invalid syntax: Systematic Debug Workflow
Fix r(198) invalid syntax in Stata with a stepwise diagnosis flow, exact error handling, and checks that prevent repeat failures.
Common Tasks
13 min read
destring and real() in Stata: Convert String Numbers Safely
17 min read
Why merge m:m in Stata Is Dangerous and What to Do Instead
17 min read
reshape long in Stata: Fix i/j Errors and Duplicate Keys
17 min read
reshape wide in Stata: Stubs, Suffixes, and Sparse Panels
13 min read
Stata Error "string variables not allowed": Causes and Fixes
13 min read
Stata type mismatch r(109): A Diagnostic Workflow
13 min read
Stata variable not found r(111): Why It Happens and Prevention
13 min read
Stata no observations r(2000): Filters, Merges, and Missingness
17 min read
Fix "factor variables may not contain noninteger values" in Stata
17 min read
Stata "omitted because of collinearity": Correct Interpretation
21 min read
Stata Quoting Rules: Compound Quotes, Nested Macros, and Paths
21 min read
stset Errors in Stata: Time, Failure, and Censoring Fixes
21 min read
adopath in Stata: Ado Conflicts and Command Discovery Fixes
13 min read
Stata "command not found": Path, Version, and Package Diagnosis
Troubleshooting
destring and real() in Stata: Convert String Numbers Safely
Why merge m:m in Stata Is Dangerous and What to Do Instead
reshape long in Stata: Fix i/j Errors and Duplicate Keys
reshape wide in Stata: Stubs, Suffixes, and Sparse Panels
Stata Error "string variables not allowed": Causes and Fixes
Stata type mismatch r(109): A Diagnostic Workflow
Stata variable not found r(111): Why It Happens and Prevention
Stata no observations r(2000): Filters, Merges, and Missingness
Command Index
adopath
adopath in Stata: Ado Conflicts and Command Discovery Fixes
command
Stata "command not found": Path, Version, and Package Diagnosis
conformability
Mata Conformability Error: Dimension Debugging and Fixes
destring
destring and real() in Stata: Convert String Numbers Safely
diagnostics
Stata r(601) file not found: Paths, Quotes, and Project Hygiene
local
Stata Quoting Rules: Compound Quotes, Nested Macros, and Paths
matrix
Stata "matrix not found": e(), r(), and Scope Debugging
merge
Why merge m:m in Stata Is Dangerous and What to Do Instead
no
Stata no observations r(2000): Filters, Merges, and Missingness
omitted
Stata "omitted because of collinearity": Correct Interpretation
preserve
preserve/restore Pitfalls in Stata: Nested State and Recovery
regress
Fix "factor variables may not contain noninteger values" in Stata
reshape
reshape long in Stata: Fix i/j Errors and Duplicate Keys
string
Stata Error "string variables not allowed": Causes and Fixes
stset
stset Errors in Stata: Time, Failure, and Censoring Fixes
too
Stata "too many variables specified": Macro Expansion and Limits
type
Stata type mismatch r(109): A Diagnostic Workflow
unicode
Unicode in Stata: Encoding Fixes for Broken Strings and Merges
variable
Stata variable not found r(111): Why It Happens and Prevention
All Guides in This Category
Open full indexdestring and real() in Stata: Convert String Numbers Safely
Why merge m:m in Stata Is Dangerous and What to Do Instead
reshape long in Stata: Fix i/j Errors and Duplicate Keys
reshape wide in Stata: Stubs, Suffixes, and Sparse Panels
Stata Error "string variables not allowed": Causes and Fixes
Stata type mismatch r(109): A Diagnostic Workflow
Stata variable not found r(111): Why It Happens and Prevention
Stata no observations r(2000): Filters, Merges, and Missingness
Fix "factor variables may not contain noninteger values" in Stata
Stata "omitted because of collinearity": Correct Interpretation
Stata Quoting Rules: Compound Quotes, Nested Macros, and Paths
stset Errors in Stata: Time, Failure, and Censoring Fixes
adopath in Stata: Ado Conflicts and Command Discovery Fixes
Stata "command not found": Path, Version, and Package Diagnosis
Stata r(601) file not found: Paths, Quotes, and Project Hygiene
Stata r(198) invalid syntax: Systematic Debug Workflow
Stata "too many variables specified": Macro Expansion and Limits
Stata "no room to add more variables": maxvar and Redesign
Mata Conformability Error: Dimension Debugging and Fixes
Stata "matrix not found": e(), r(), and Scope Debugging
preserve/restore Pitfalls in Stata: Nested State and Recovery
Unicode in Stata: Encoding Fixes for Broken Strings and Merges