diff --git a/dist/index.js b/dist/index.js
index 15f8a3b..aadf381 100644
--- a/dist/index.js
+++ b/dist/index.js
@@ -16876,7 +16876,13 @@ class DotNetVersionInfo {
             this.throwInvalidVersionFormat();
         }
         let major = this.getVersionNumberOrThrow(parts[0]);
-        let minor = this.getVersionNumberOrThrow(parts[1]);
+        let minor;
+        if (parts[1] === 'x') {
+            minor = parts[1];
+        }
+        else {
+            minor = this.getVersionNumberOrThrow(parts[1]);
+        }
         this.fullversion = major + '.' + minor;
     }
     getVersionNumberOrThrow(input) {
@@ -16894,7 +16900,7 @@ class DotNetVersionInfo {
         }
     }
     throwInvalidVersionFormat() {
-        throw 'Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*';
+        throw new Error('Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*');
     }
     /**
      * If true exacatly one version should be resolved
@@ -16997,7 +17003,7 @@ class DotnetCoreInstaller {
             }
             console.log(process.env['PATH']);
             if (resultCode != 0) {
-                throw `Failed to install dotnet ${resultCode}. ${output}`;
+                throw new Error(`Failed to install dotnet ${resultCode}. ${output}`);
             }
         });
     }
@@ -17025,7 +17031,7 @@ class DotnetCoreInstaller {
             // Sort for latest version
             releasesInfo = releasesInfo.sort((a, b) => semver.rcompare(a['sdk']['version'], b['sdk']['version']));
             if (releasesInfo.length == 0) {
-                throw `Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`;
+                throw new Error(`Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`);
             }
             let release = releasesInfo[0];
             return release['sdk']['version'];
@@ -17046,7 +17052,7 @@ class DotnetCoreInstaller {
                 return versionParts[0] == sdkParts[0];
             });
             if (releasesInfo.length === 0) {
-                throw `Could not find info for version ${versionParts.join('.')} at ${DotNetCoreIndexUrl}`;
+                throw new Error(`Could not find info for version ${versionParts.join('.')} at ${DotNetCoreIndexUrl}`);
             }
             return releasesInfo[0]['releases.json'];
         });
diff --git a/src/installer.ts b/src/installer.ts
index f0b48a2..12113e6 100644
--- a/src/installer.ts
+++ b/src/installer.ts
@@ -39,7 +39,12 @@ export class DotNetVersionInfo {
     }
 
     let major = this.getVersionNumberOrThrow(parts[0]);
-    let minor = this.getVersionNumberOrThrow(parts[1]);
+    let minor;
+    if (parts[1] === 'x') {
+      minor = parts[1];
+    } else {
+      minor = this.getVersionNumberOrThrow(parts[1]);
+    }
 
     this.fullversion = major + '.' + minor;
   }
@@ -60,7 +65,9 @@ export class DotNetVersionInfo {
   }
 
   private throwInvalidVersionFormat() {
-    throw 'Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*';
+    throw new Error(
+      'Invalid version format! Supported: 1.2.3, 1.2, 1.2.x, 1.2.*'
+    );
   }
 
   /**
@@ -187,7 +194,7 @@ export class DotnetCoreInstaller {
     console.log(process.env['PATH']);
 
     if (resultCode != 0) {
-      throw `Failed to install dotnet ${resultCode}. ${output}`;
+      throw new Error(`Failed to install dotnet ${resultCode}. ${output}`);
     }
   }
 
@@ -236,7 +243,9 @@ export class DotnetCoreInstaller {
     );
 
     if (releasesInfo.length == 0) {
-      throw `Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`;
+      throw new Error(
+        `Could not find dotnet core version. Please ensure that specified version ${versionInfo.inputVersion} is valid.`
+      );
     }
 
     let release = releasesInfo[0];
@@ -264,9 +273,11 @@ export class DotnetCoreInstaller {
     });
 
     if (releasesInfo.length === 0) {
-      throw `Could not find info for version ${versionParts.join(
-        '.'
-      )} at ${DotNetCoreIndexUrl}`;
+      throw new Error(
+        `Could not find info for version ${versionParts.join(
+          '.'
+        )} at ${DotNetCoreIndexUrl}`
+      );
     }
 
     return releasesInfo[0]['releases.json'];