[BUG] Claude Code crash with "Error: No suitable shell found." in Win 11 with Git Bash

Environment

• Platform (select one):
• [ v] Anthropic API
• [ ] AWS Bedrock
• [ ] Google Vertex AI
• [ ] Other: <!-- specify -->
• Claude CLI version: <!-- output of claude --version --> 1.0.55
• Operating System: <!-- e.g. macOS 14.3, Windows 11, Ubuntu 22.04 --> Windows 11
• Terminal: <!-- e.g. iTerm2, Terminal App --> Git Bash

Bug Description

Claude Code crash after installation

Steps to Reproduce

1. install CC with npm
2. activate CC with subscription
3. skip steps for onboarding
4. see error below

or

1. run bash command claude
2. see same error

Expected Behavior

Claude code can be used

Actual Behavior

Claude code crash

Additional Context

<!-- Add any other context about the problem here, such as screenshots, logs, etc. -->
full error log
stalled and the SHELL environment variable set.";throw v1(new Error(J)),new Error(J)}return W}var DhQ=async(A)=>{let B=A.includes("zsh")?"zsh":A.includes("bash")?"bash":"sh";return fA(Creating shell snapshot for ${B} (${A})),new Promise(async(Q)=>{try{let I=vl0(A);if(!ngQ(I)){fA(Shell config file not found: ${I}),Q("");return}let D=QhQ(A);rgQ(A,["-c","-l",D],{env:{...process.env.CLAUDE_CODE_DONT_INHERIT_ENV?{}:process.env,SHELL:A,GIT_EDITOR:"true",CLAUDECODE:"1"},timeout:BhQ,maxBuffer:1048576},async(G,Z,F)=>{if(G)fA(Shell snapshot creation failed: ${G.message}),fA(stderr: ${F}),v1(new Error(Failed to create shell snapshot: ${F})),E1("shell_snapshot_failed",{stderr_length:F.length}),Q("");else{let Y=Z.length;if(fA(Shell snapshot created successfully (${Y} bytes)),Zg())try{let W=Date.now(),J=Math.random().toString(36).substring(2,8),C=As1(t9(),"shell-snapshots"),X=As1(C,snapshot-${B}-${W}-${J}.sh);agQ(C,{recursive:!0}),sgQ(X,Z,"utf8"),fA(Debug: Shell snapshot written to ${X})}catch(W){fA(Failed to write debug snapshot: ${W})}Q(Z)}})}catch(I){fA(Unexpected error during snapshot creation: ${I}),v1(I instanceof Error?I:new Error(String(I))),E1("shell_snapshot_error",{}),Q("")}})};async function GhQ(){let A=IhQ(),B=await DhQ(A);return{binShell:A,snapshotContent:B}}var Qs1=U0(GhQ);async function ZhQ(A,B,Q,I=!1,D,G){let Z=Q||AhQ,{binShell:F,snapshotContent:Y}=await Qs1();if(D)F=D,Y="";let W=Math.floor(Math.random()65536).toString(16).padStart(4,"0"),J=pX1.tmpdir();if(q9()==="windows")J=Wr(J);let C=${J}/claude-${W}-cwd,X=ae.default.quote([A,"<","/dev/null"]);if(F.includes("bash")&&!I){let z=A.split(/(?<!\|)\|(?!\|)/);if(z.length>1)X=ae.default.quote([z[0],"<","/dev/null","|",z.slice(1).join("|")])}if(I)A=fl0(A),X=ae.default.quote([A,"<","/dev/null"]);let V=()=>{};if(I){let z=kl0(X);X=z.finalCommand,V=z.cleanup}let K=["source <(cat)",eval ${X},pwd -P >| ${C}].join(" && "),H=bl0();if(B.aborted)return Sl0();try{let z=ta1(A),q=F;if(q9()==="windows")q=Sx1();let M=ogQ(q,["-c","-l",K],{env:{...process.env,SHELL:F,GIT_EDITOR:"true",CLAUDECODE:"1",...I?z.env:{}},cwd:H,detached:!0});M.stdin.end(Y);let L=Pl0(M,B,Z,G);return L.result.then(async(T)=>{if(T&&!T.backgroundTaskId)try{pX(igQ(C,{encoding:"utf8"}).trim(),H)}catch{E1("shell_set_cwd",{success:!1})}}).finally(()=>V()),V=()=>{},L}catch(z){return fA(Shell exec error: ${z instanceof Error?z.message:String(z)}),V(),{background:()=>null,kill:()=>{},result:Promise.resolve({code:126,stdout:"",stderr:z instanceof Error?z.message:String(z),interrupted:!1})}}finally{V()}}function bl0(){return lFA()}function pX(A,B){let Q=tgQ(A)?A:egQ(B||b1().cwd(),A);if(!b1().existsSync(Q))throw new Error(Path "${Q}" does not exist);let I=b1().realpathSync(Q);pFA(I),E1("shell_set_cwd",{success:!0})}var FhQ=ZhQ;function gl0(){return FhQ}function lA(){try{return bl0()}catch{return N9()}}var se=1000,re=60;function O2(A,B,Q={timeout:10rese,preserveOutputOnError:!0,useCwd:!0}){return Y8(A,B,{abortSignal:Q.abortSignal,timeout:Q.timeout,preserveOutputOnError:Q.preserveOutputOnError,cwd:Q.useCwd?lA():void 0,env:Q.env,..."shell"in Q?{shell:Q.shell}:{}})}function Y8(A,B,Q={timeout:10rese,preserveOutputOnError:!0,maxBuffer:1e6}){let{abortSignal:I,timeout:D=10rese,preserveOutputOnError:G=!0,cwd:Z,env:F}=Q;return new Promise((Y)=>{try{YhQ(A,B,{maxBuffer:Q.maxBuffer,signal:I,timeout:D,cwd:Z,env:F,shell:"shell"in Q?Q.shell:q9()==="windows"?ZdA():void 0},(W,J,C)=>{if(W)if(G){let X=typeof W.code==="number"?W.code:1;Y({stdout:J||"",stderr:C||"",code:X,error:typeof W.code==="string"?W.code:String(X)})}else Y({stdout:"",stderr:"",code:1});else Y({stdout:J,stderr:C,code:0})})}catch(W){v1(W),Y({stdout:"",stderr:"",code:1})}})}function q5(A,B,Q=10rese){let I;if(B===void 0)I={};else if(B instanceof AbortSignal)I={abortSignal:B,timeout:Q};else I=B;let{abortSignal:D,timeout:G=10rese}=I;D?.throwIfAborted();let 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process.env.TERM}if(!process.stdout.isTTY)return"non-interactive";return null}var W0={getIsDocker:JhQ,hasInternetAccess:ChQ,isCI:z6(!1),platform:["win32","darwin"].includes(process.platform)?process.platform:"linux",nodeVersion:process.version,terminal:zhQ(),getPackageManagers:XhQ,getRuntimes:VhQ,isRunningWithBun:KhQ,isWslEnvironment:cl0,isNpmFromWindowsPath:EhQ};function z6(A){if(!A)return!1;let B=A.toLowerCase().trim();return["1","true","yes","on"].includes(B)}function pl0(A){let B={};if(A)for(let Q of A){let[I,...D]=Q.split("=");if(!I||D.length===0)throw new Error(Invalid environment variable format: ${Q}, environment variables should be added as: -e KEY1=value1 -e KEY2=value2);B[I]=D.join("=")}return B}function Id(){return process.env.AWS_REGION||process.env.AWS_DEFAULT_REGION||"us-east-1"}function UT(){return process.env.CLOUD_ML_REGION||"us-east5"}function Ds1(){return z6(process.env.CLAUDE_BASH_MAINTAIN_PROJECT_WORKING_DIR)}function 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Error: No suitable shell found. Claude CLI requires a Posix shell environment. Please ensure you have a valid shell installed and the SHELL environment variable set.
at IhQ (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:727:858)
at GhQ (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:727:2027)
at Q (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:542:14406)
at SS (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:2673:7813)
at async LDA.<anonymous> (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:2681:1041)
at async LDA.parseAsync (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:533:4184)
at async wJ4 (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:2693:1216)
at async HJ4 (file:///C:/Users/User/AppData/Roaming/nvm/v20.19.3/node_modules/@anthropic-ai/claude-code/cli.js:2673:9978)

Node.js v20.19.3