Zig massive compile-time error

error.txt

An error occurred:
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:9:9: error: error is ignored. consider using `try`, `catch`, or `if`
        switch (c) {
        ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^
/tmp/playground3425286633/play.zig:10:37: error: expected type '[]const u8', found 'comptime_int'
            '*' => stdout.print(args[arg_idx]),
                                    ^
/tmp/playground3425286633/play.zig:23:15: note: called from here
    try printf("Mr. John has * contacts in *\n", .{ 42, "New York"});
              ^
/tmp/playground3425286633/play.zig:22:21: note: called from here
pub fn main() !void {
                    ^