Improve error message language and polishing

tests/cypress/e2e/hedy_page/invalid_program.cy.js

@@ -33,7 +33,7 @@ describe('Error code gives correct error', () => {
 
     it('Missing Command', () => {
         const error_code = "hello world"
-        const error_message = `We detected that the code seems to be missing a command on line 1. Can you try looking at the exercise section to find which command to use?`;
+        const error_message = `We detected that the code is missing a command on line 1. Can you try looking at the adventure section to find which command to use?`;
         goToHedyPage();
 
         cy.get('#editor > .cm-editor > .cm-scroller > .cm-content').click();
@@ -47,7 +47,7 @@ describe('Error code gives correct error', () => {
 
     it('Invalid Argument Type', () => {
         const error_code = "forward lalala"
-        const error_message = `We detected that forward doesn't work with lalala because it is text. Can you try changing lalala to a number or input from ask?`;
+        const error_message = `We detected that forward can't be used with lalala because it is text. Can you try changing lalala to a number or input from ask?`;
         goToHedyPage();
 
         cy.get('#editor > .cm-editor > .cm-scroller > .cm-content').click();
@@ -61,7 +61,7 @@ describe('Error code gives correct error', () => {
 
     it('Invalid Argument', () => {
         const error_code = "turn test"
-        const error_message = `We detected that turn is not usable with  test. Can you try changing  test to right or left?`;
+        const error_message = `We detected that turn can't be used with  test. Can you try changing  test to right or left?`;
         goToHedyPage();
 
         cy.get('#editor > .cm-editor > .cm-scroller > .cm-content').click();

translations/en/LC_MESSAGES/messages.po

@@ -19,91 +19,91 @@ msgstr ""
 "Generated-By: Babel 2.14.0\n"
 
 msgid "Access Before Assign"
-msgstr "We detected that a variable `{name}` is being used on line {access_line_number} before being set. Can you set the variable before it is used?"
+msgstr "We detected that a variable `{name}` is being used on line {access_line_number} before being set. Can you set the variable first?"
 
 msgid "Cyclic Var Definition"
-msgstr "We detected that a variable `{variable}` is being used on the right-hand side of the `{is}` command before being set. Can you set the variable before it is used?"
+msgstr "We detected that a variable `{variable}` is being used on the right-hand side of the `{is}` before being set. Can you set the variable first?"
 
 msgid "Else Without If Error"
 msgstr "We detected that there is an `{else}` being used before an `{if}` on line {line_number}. Can you try writing an `{if}` before the `{else}`?"
 
 msgid "Function Undefined"
-msgstr "We detected that a function {name} is being used without being defined. Can you define the function before it is used?"
+msgstr "We detected that a function `{name}` is being used without being defined. Can you define the function first?"
 
 msgid "Has Blanks"
 msgstr "We detected that the code seems to be incomplete. Can you fill in the blanks with code?"
 
 msgid "Incomplete"
-msgstr "We detected that part of the code seems to be missing from the `{incomplete_command}` on line {line_number}. Can you try adding the what's missing?"
+msgstr "We detected that part of the code is missing from the `{incomplete_command}`, on line {line_number}. Can you try adding what's missing?"
 
 msgid "Incomplete Repeat"
-msgstr "We detected that the `{repeat}` on line {line_number} is missing a `{command}` command. Can you try adding it?"
+msgstr "We detected that the `{repeat}`, on line {line_number} is missing a `{command}` command. Can you try adding `{repeat}` with `{command}`?"
 
 msgid "Invalid"
 msgstr "We detected that `{invalid_command}` is not a Hedy level {level} command. Can you try using `{guessed_command}`?"
 
 msgid "Invalid Argument"
-msgstr "We detected that `{command}` is not usable with `{invalid_argument}`. Can you try changing `{invalid_argument}` to {allowed_types}?"
+msgstr "We detected that `{command}` can't be used with `{invalid_argument}`. Can you try changing `{invalid_argument}` to {allowed_types}?"
 
 msgid "Invalid Argument Type"
-msgstr "We detected that `{command}` doesn't work with `{invalid_argument}` because it is {invalid_type}. Can you try changing `{invalid_argument}` to {allowed_types}?"
+msgstr "We detected that `{command}` can't be used with `{invalid_argument}` because it is {invalid_type}. Can you try changing `{invalid_argument}` to {allowed_types}?"
 
 msgid "Invalid At Command"
-msgstr "We detected that `{command}` may not be used from level 16 onward. Can you try using square brackets `[]` for lists?"
+msgstr "We detected that `{command}` can't be used from level 16 onward. Can you try adding square brackets around `[]` for lists?"
 
 msgid "Invalid Space"
-msgstr "We detected that line {line_number} started with a space. Can you try removing the space?"
+msgstr "We detected that line {line_number} started with a space. Can you remove the space?"
 
 msgid "Invalid Type Combination"
-msgstr "We detected that `{invalid_argument}` and `{invalid_argument_2}` cannot be used with `{command}` because one is {invalid_type} and the other is {invalid_type_2}. Can you try changing `{invalid_argument}` to {invalid_type_2} or `{invalid_argument_2}` to {invalid_type}?"
+msgstr "We detected that `{invalid_argument}` and `{invalid_argument_2}` can't be used with `{command}` because one is {invalid_type} and the other is {invalid_type_2}. Can you try changing `{invalid_argument}` to {invalid_type_2} or `{invalid_argument_2}` to {invalid_type}?"
 
 msgid "Lonely Echo"
-msgstr "We detected that an `{echo}` is being used before or without using an `{ask}`. Can you try writing an `{ask}` before the `{echo}`?"
+msgstr "We detected that an `{echo}` is being used before or without an `{ask}`. Can you try writing an `{ask}` before the `{echo}`?"
 
 msgid "Lonely Text"
-msgstr "We detected that the code seems to be missing a command with the text that was used in line {line_number}. Can you try writing the needed command with the text"
+msgstr "We detected that the code is missing a command with the text that was used on line {line_number}. Can you try writing the needed command with the text"
 
 msgid "Missing Additional Command"
-msgstr "We detected that the code seems to be missing a `{command}` on line {line_number}. Can you try using `{missing_command}` in your code."
+msgstr "We detected that the code is missing a `{command}` on line {line_number}. Can you try using `{missing_command}` in your code."
 
 msgid "Missing Colon Error"
 msgstr "We detected that `{command}` needs a `:` at the end of line {line_number}. Starting from level 17, can you start adding a `:` at the end of line with commands?"
 
 msgid "Missing Command"
-msgstr "We detected that the code seems to be missing a command on line {line_number}. Can you try looking at the exercise section to find which command to use?"
+msgstr "We detected that the code is missing a command on line {line_number}. Can you try looking at the adventure section to find which command to use?"
 
 msgid "Missing Inner Command"
-msgstr "We detected that the code seems to be missing a command for the `{command}` statement on line {line_number}. Can you try looking at the exercise section to find which command to use?"
+msgstr "We detected that the code is missing a command for the `{command}` on line {line_number}. Can you try looking at the adventure section to find which command to use?"
 
 msgid "Missing Square Brackets"
-msgstr "We detected that the list you created on line {line_number} is missing square brackets `[]`. Can you try adding square brackets around `[]` the list?"
+msgstr "We detected that the list you created on line {line_number} seems to be missing square brackets `[]`. Can you try adding square brackets around `[]` for lists?"
 
 msgid "Missing Variable"
 msgstr "We detected that `{command}` is missing a variable at the start of the line. Can you try writing the variable before the `{command}?`"
 
 msgid "Misspelled At Command"
-msgstr "We detected that `{invalid_argument}` seems to have a spelling mistake on line {line_number}. Can you try writing `{command}` instead."
+msgstr "We detected that `{invalid_argument}` seems to have a spelling error on line {line_number}. Can you try writing `{command}` instead."
 
 msgid "No Indentation"
 msgstr "We detected that there seems to be too few {leading_spaces} spaces used on line {line_number}. Can you try increasing indentation by {indent_size} for each new block."
 
 msgid "Non Decimal Variable"
-msgstr "We detected that at line {line_number} you used a number Hedy does not support! Can you try a decimal number, like 2?"
+msgstr "We detected that a number is being used which Hedy does not support, on line {line_number}! Can you try a decimal number, like 2?"
 
 msgid "Parse"
-msgstr "We detected that `{character_found}` is being used on line {location[0]} which is not allowed. Can you try looking for a missing or an extra character on your code?"
+msgstr "We detected that `{character_found}` is being used on line {location[0]} which can't be processed. Can you try looking for a missing or an extra character on your code?"
 
 msgid "Pressit Missing Else"
-msgstr "We detected that the code is missing an `{else}` to handle other key presses. Can you try adding an `{else}` to your code?"
+msgstr "We detected that the code seems to be missing an `{else}` to handle other key presses. Can you try adding an `{else}` to your code?"
 
 msgid "Runtime Index Error"
-msgstr "We detected that the list {name} is empty or its index is missing. Can you make sure that the list is not empty or try writing a number inside the `[]` for the missing index?"
+msgstr "We detected that the list `{name}` is empty or its index is missing. Can you make sure that the list is not empty or try writing a number inside the `[]` for the missing index?"
 
 msgid "Runtime Value Error"
-msgstr "We detected that `{command}` received disallowed value `{value}`. {tip}."
+msgstr "We detected that `{command}` received an unexpected value `{value}`. {tip}."
 
 msgid "Runtime Values Error"
-msgstr "We detected that `{command}` received disallowed values `{value}` and `{value}`. {tip}."
+msgstr "We detected that `{command}` received unexpected values `{value}` and `{value}`. {tip}."
 
 msgid "Save Microbit code "
 msgstr "Save Microbit code"
@@ -112,40 +112,40 @@ msgid "Too Big"
 msgstr "We detected that the program has {lines_of_code} lines, but we can only process {max_lines} lines. Can you try to shorten your program?"
 
 msgid "Too Few Indents"
-msgstr "We detected that line {line_number} has too few ({leading_spaces}) spaces. Can you try to add an extra space?"
+msgstr "We detected that line {line_number} has too few ({leading_spaces}) leading spaces. Can you try to add an extra space?"
 
 msgid "Too Many Indents"
-msgstr "We detected that line {line_number} has too many ({leading_spaces}) spaces. Can you try to remove the extra space?"
+msgstr "We detected that line {line_number} has too many ({leading_spaces}) leading spaces. Can you try to remove the extra space?"
 
 msgid "Unexpected Indentation"
 msgstr "We detected that line {line_number} has too many ({leading_spaces}) spaces. Can you try adding {indent_size} more spaces per new block?"
 
 msgid "Unquoted Assignment"
-msgstr "We detected that the text to the right of the `{is}` is not written between quotes. This level requires you to start writing the text between quotes. Try doing that for the text {text}"
+msgstr "We detected that the text to the right of the `{is}` is not written between quotes. Starting from this level, can you start writing the texts to the right of the `{is}` between quotes (Try doing that for the text {text})?"
 
 msgid "Unquoted Equality Check"
 msgstr "We detected that the code is trying to check if a variable equals multiple words. Can you try using quotation marks for the words you want to check?"
 
 msgid "Unquoted Text"
-msgstr "We detected that text for `{ask}` or `{print}` seems to be missing their quotation marks. Can you try adding quotes for {unquotedtext}?"
+msgstr "We detected that the text for `{ask}` or `{print}` seems to be missing their quotation marks. Can you try adding quotes for `{unquotedtext}`?"
 
 msgid "Unsupported Float"
-msgstr "We detected that the code uses non-integer numbers which are not supported yet. Can you try changing `{value}` to an integer?"
+msgstr "We detected that the code uses non-integer numbers which Hedy does not supported yet. Can you try changing `{value}` to an integer?"
 
 msgid "Unsupported String Value"
-msgstr "We detected that text uses values it cannot contain `{invalid_value}`. Can you try removing the written value or change its type?"
+msgstr "We detected that the text uses values it cannot contain `{invalid_value}`. Can you try removing the written value or change its type?"
 
 msgid "Unused Variable"
-msgstr "We detected that variable {variable_name} defined on line {line_number}, but not used. Can you try using the defined variable or remove it?"
+msgstr "We detected that variable `{variable_name}` defined on line {line_number}, but not used. Can you try using the defined variable or remove it?"
 
 msgid "Var Undefined"
-msgstr "We detected that variable `{name}` is being used before being set. Can you set the variable before it is used or use quotation marks for `{name}`?"
+msgstr "We detected that variable `{name}` is being used before being set. Can you set the variable first or use quotation marks for `{name}`?"
 
 msgid "Wrong Level"
 msgstr "We detected that the written code is correct Hedy code, but `{offending_keyword}` is used on level {working_level}. {tip}"
 
 msgid "Wrong Number of Arguments"
-msgstr "We detected that function {name} has wrong number of arguments which is {used_number}. Can you try writing {defined_number} instead?"
+msgstr "We detected that function `{name}` has wrong number of arguments which is `{used_number}`. Can you try writing {defined_number} instead?"
 
 msgid "account_overview"
 msgstr "Account overview"